04 de julho de 2022

Help me find psyllids on Beaked Hazelnut (Corylus cornuta)

Background. Members of the birch family (Betulaceae) are a common host plant for psyllids in North America. All species associated with plants in this family are now referred to the genus Psylla, and include Psylla alni, P. viridescens, P. caudata and P. floccosa on Alder, P. striata, P. hartigii, P. betulae and P. betulaenanae on Birch, and P. carpinicola on Hornbeam. Many of these psyllids are relatively frequently observed, due to their large size in addition to the rather conspicuous nymphs which are usually covered in dense white fluff. One additional psyllid belongs to this group: P. diloncha, which is recorded from from the plant historically referred to as Corylus rostrata but is today known as Corylus cornuta, or Beaked Hazelnut.

Beaked Hazelnut (Corylus cornuta) is a somewhat common tree that grows in the eastern and midwestern USA into western Canada and south along the west coast into California. The recorded distribution of Psylla diloncha mirrors the host distribution, with records from Minnesota, Wisconsin, Ohio, Alberta, and California. Historical records from Kansas and Nevada also exist but seem to be outside of Beaked Hazelnut's current native range.

Original descriptions and illustrations of P. diloncha would suggest that it is most similar to the birch psyllid P. striata, but with genal cones very long and with the pterostigma almost entirely lacking. It may also be similar to the hornbeam psyllid P. carpinicola, but with the cubital cell less strongly arched and probably with the wings a bit more yellowish.

To date, I can find no example of photos on iNaturalist or Bugguide which are convincingly suggestive of this species, so perhaps that's where you come in. If Beaked Hazelnut is in your area, try investigating it for these psyllids; at this time of year, adults are expected. Nymphs are likely to also cover themselves in conspicuous white fluff like other members of the genus, but it is not known when nymphs may be found. Photos of this species will advance our understanding of this genus and will also be an iNaturalist first.

Beaked Hazelnut leaves. C. Mallory

Psylla striata adult © Stuart Tingley, some rights reserved (CC-BY-NC). Psylla diloncha is expected to look similar to this species.

Psylla viridescens nymphs on alder. © Masumi Palhof, some rights reserved (CC-BY-NC). Psylla diloncha nymphs may be similar

Publicado em 04 de julho de 2022, 02:07 AM por psyllidhipster psyllidhipster | 1 comentário | Deixar um comentário

03 de julho de 2022

A checklist of the Psylloidea of Canada

The Canadian psyllid fauna is often lumped together with the USA fauna in checklists, and at least 354 species of psyllids are currently known to occur in the region consisting of the United States and Canada. However, many of the species found in the lower USA do not occur in Canada, and so a more focused regional checklist felt necessary to better understand the Canadian fauna. Herein I list the 119 species which are currently known to occur in Canada, but undoubtedly there are many undocumented species which likely also occur within the country.

14 species are considered to be non-native to the region; introduced species are listed in italics. Species not known to occur outside of Canada are listed in bold. Provinces in which a species has been recorded are listed with the westmost province first and then continue from west to east. The host plant (if known) is recorded following the distribution.

A printer-friendly PDF version of this list can be accessed here.




Aphalara confusa Caldwell, 1937 (AB). Rumex
Aphalara curta Caldwell, 1937 (AB). Polygonum/Persicaria
Aphalara dentata Caldwell, 1937 (AB).
Aphalara loca Caldwell, 1937 (AB, MB). Polygonum/Persicaria
Aphalara manitobaensis Caldwell, 1938 (AB, MB).
Aphalara monticola Hodkinson, 1973 (AB). Rumex
Aphalara nigra Caldwell, 1937 (MB).
Aphalara nubifera Patch, 1912 (AB). Rumex
Aphalara persicaria Caldwell, 1937 (BC). Polygonum/Persicaria
Aphalara rumicis Mally, 1894 (BC, NS). Rumex
Aphalara steironemicola Richards, 1970 (ON). Lysimachia


Craspedolepta angustipennis (Crawford, 1911) (YT, BC, AB, SK, ON, QC). Achillea
Craspedolepta canadensis Journet & Vickery, 1979 (BC, SK, ON). Artemisia
Craspedolepta flavida (Caldwell, 1938) (AB, SK, MB, ON, QC). Euthamia
Craspedolepta fumida (Caldwell, 1938) (BC, AB, SK, MB, ON, QC, NB, NS). Solidago
Craspedolepta furcata (Caldwell, 1936) (BC, AB, MB, NB, NS). Euthamia
Craspedolepta gutierreziae (Klyver, 1931) (AB). Guiterrezia
Craspedolepta maculipilosa Journet & Vickery, 1979 (AB, SK).
Craspedolepta magna Journet & Vickery, 1979 (AB, SK, MB, ON, QC, NB, NS, PE). Solidago
Craspedolepta minutissima (Crawford, 1911) (BC). Artemisia
Craspedolepta nebulosa (Zetterstedt, 1828) (YT, BC, NT, AB, MB, ON, QC). Chamaenerion
Craspedolepta nota Journet & Vickery, 1979 (AB, MB).
Craspedolepta ochracea (Provancher, 1872) (QC). Solidago
Craspedolepta parvula Journet & Vickery, 1979 (AB, SK, QC, NB). Solidago
Craspedolepta schwarzi (Ashmead, 1904) (BC, AB). Chamaenerion
Craspedolepta scurra Journet & Vickery, 1979 (QC, NS). Solidago
Craspedolepta sonchi (Foerster, 1848) (AB, SK, MB, ON). Sonchus
Craspedolepta subpunctata (Foerster, 1848) (YT, BC, AB, SK, MB, ON). Chamaenerion
Craspedolepta vancouverensis (Klyver, 1931) (BC, AB). Artemisia
Craspedolepta veaziei (Patch, 1911) (BC, AB, SK, MB, ON, QC, NB, NS). Solidago
Craspedolepta vulgaris (Journet & Vickery, 1979) (BC, AB, SK, MB, ON, QC, NB, NS, PE). Solidago



Rhinocola aceris (Linnaeus, 1758) (ON, PE). Acer



Ctenarytaina eucalypti (Maskell, 1890) (BC). Eucalyptus




Calophya triozomima Schwarz, 1904 (AB, ON). Rhus




Pachypsylla celtidismamma (Fletcher, 1883) (SK, MB, ON, QC). Celtis
Pachypsylla celtidisvesicula Riley, 1884 (ON, QC). Celtis
Pachypsylla cohabitans Yang & Riemann 2001 (ON). Celtis




Psyllopsis discrepans (Flor, 1861) (AB, ON, NS). Fraxinus
Psyllopsis fraxini (Linné, 1758) (BC). Fraxinus
Psyllopsis fraxinicola (Foerster, 1848) (BC, NS). Fraxinus



Livia bifasciata Provancher, 1886 (ON, QC, NB). Juncus
Livia caricis Crawford, 1914 (BC). Carex
Livia crawfordi Hodkinson & Bird, 2000 (ON). Juncus
Livia maculipennis (Fitch, 1857) (ON). Juncus
Livia manitobensis Hodkinson & Bird, 2000 (MB, NB). Carex
Livia saltatrix Provancher, 1886 (ON, QC, NB). Carex
Livia vernalis Fitch, 1851 (ON, QC). Carex



Neophyllura arbuti (Schwarz, 1904) (BC). Arbutus
Neophyllura arctostaphyli (Schwarz, 1904) (BC, NB). Arctostaphylos




Arytaina genistae (Latreille, 1804) (BC, NS). Cytisus


Arytainilla spartiophila (Foerster, 1848) (BC). Cytisus


Cacopsylla alaskensis (Ashmead, 1904) (MB). Salix
Cacopsylla alba (Crawford, 1914) (AB). Salix
Cacopsylla americana (Crawford, 1914) (AB, NS?). Salix
Cacopsylla annulata (Fitch, 1851) (ON, QC, NB, NS). Acer
Cacopsylla arctica (Walker, 1852) (ON). Salix
Cacopsylla breviata (Patch, 1912) (ON). Salix
Cacopsylla fatsiae (Jensen, 1957) (BC). Fatsia
Cacopsylla fibulata (Crawford, 1914) (AB). Salix
Cacopsylla hamata (Tuthill, 1944) (AB). Salix
Cacopsylla highwoodensis (Hodkinson, 1978) (AB). Salix
Cacopsylla kananaskensis (Hodkinson, 1976) (AB). Salix
Cacopsylla latiforceps (Tuthill, 1943) (BC). Salix
Cacopsylla magnicauda (Crawford, 1914) (BC, AB, SK, MB). Eleagnus
Cacopsylla mali (Schmidberger, 1836) (QC, NL, NB, NS, PE). Malus
Cacopsylla minor (Crawford, 1914) (BC, AB). Salix
Cacopsylla myrtilli (Wagner, 1947) (AB). Vaccinium
Cacopsylla negundinis (Mally, 1894) (AB, NB). Acer
Cacopsylla parallela (Crawford, 1914) (BC). Salix
Cacopsylla peregrina (Foerster, 1848) (BC, NL, NS). Crataegus
Cacopsylla pyricola (Foerster, 1848) (BC, QC, NS). Pyrus
Cacopsylla rara (Tuthill, 1944) (AB, NS). Viburnum
Cacopsylla rufipennis Hodkinson, 1978 (AB). Salix
Cacopsylla sinuata Crawford, 1914 (AB, MB, ON, NL). Salix
Cacopsylla stricklandi (Caldwell, 1939) (BC, AB). Shepherdia
Cacopsylla subspiculata (Hodkinson, 1976) (AB). Salix
Cacopsylla tuthilli (Caldwell, 1939) (AB). Shepherdia


Ceanothia fuscipennis (Crawford, 1914) (BC). Ceanothus
Ceanothia robusta (Crawford, 1914) (BC). Ceanothus


Livilla variegata (Löw, 1881) (BC, NL). Laburnum


Psylla alni (Linné, 1758) (BC, AB). Alnus
Psylla betulae (Linné, 1758) (AB). Betula
Psylla carpinicola Crawford, 1914 (ON, QC, NB, NS). Carpinus
Psylla caudata Crawford, 1914 (BC). Alnus
Psylla diloncha (Caldwell, 1938) (AB). Corylus
Psylla floccosa Patch, 1909 (BC, AB, MB, ON, NB, NS). Alnus
Psylla hartigii (Flor, 1861) (AB, NS). Betula
Psylla striata (Patch, 1911) (BC, AB, NB, NS). Betula
Psylla viridescens (Provancher, 1872) (BC, SK, MB, ON, QC, NB, NS). Alnus


Purshivora coryli (Patch, 1912) (BC). Purshia
Purshivora minuta (Crawford, 1914) (BC). Purshia
Purshivora pubescens (Crawford, 1914) (BC). Purshia


Spanioneura buxi (Linné, 1758) (BC, ON, QC, NL, NB, NS, PE). Buxus
Spanioneura fonscolombii Foerster, 1848 (ON). Buxus
Spanioneura sanguinea (Provancher, 1872) (BC, AB, MB, ON, QC, NL, NB, NS). Prunus



Bactericera arbolensis (Crawford, 1910) (SK). Shepherdia
Bactericera cockerelli (Šulc, 1909) (BC, AB, SK, ON). Solanaceae (many genera)
Bactericera incerta (Tuthill, 1943) (BC). Salix
Bactericera maculipennis (Crawford, 1910) (AB). Convolvulus
Bactericera minuta (Crawford, 1910) (AB). Salix
Bactericera pletschi (Tuthill, 1944) (AB).
Bactericera salicivora (Reuter, 1876) (BC, AB, ON, NB). Salix
Bactericera shepherdiae (Tuthill, 1938) (YT, BC, AB). Shepherdia
Bactericera varians (Crawford, 1910) (BC, AB). Salix


Heterotrioza chenopodii (Reuter, 1876) (BC, AB, NB, NS, PE). Chenopodium


Lauritrioza alacris (Flor, 1861) (BC). Laurus


Neotriozella pyrifolii (Forbes, 1885) (ON, NS). Styrax


Phylloplecta occidentalis (Tuthill, 1939) (BC). Rubus
Phylloplecta stylifera (Patch, 1912) (MB, ON).
Phylloplecta tripunctata (Fitch, 1851) (ON, QC, NB). Rubus


Trioza albifrons Crawford, 1910 (BC, AB). Urtica
Trioza aylmeriae Patch, 1912 (ON). Amelanchier
Trioza forcipula Patch, 1912 (ON).
Trioza frontalis Crawford, 1910 (BC, AB, MB). Amelanchier
Trioza inversa Tuthill, 1939 (BC). Amelanchier
Trioza obtusa Patch, 1911 (AB, ON, NB, NL, NS). Amelanchier
Trioza quadripunctata Crawford, 1910 (BC, AB). Urtica
Trioza sulcata Crawford, 1910 (AB). Amelanchier
Trioza longicornis* Crawford, 1910 (BC). Salix?

Host plants

The host plant genera for Canadian Psylloidea are listed, followed by the number of species known from that host. Some genera are grouped together based on recent changes in plant taxonomy that make it difficult to understand historical host plant records, or by a tendency of certain psyllid species groups to use multiple related genera of plants. Of the 44 host plant genus or genus groups known to be associated with psyllids in Canada, 21 of them are host to more than one species.

Salix (20)
Euthamia/Solidago (9)
Amelanchier (5)
Shepherdia/Eleagnus (5)
Alnus (4)
Carex (4)
Rumex (4)
Acer (3)
Artemisia (3)
Betula (3)
Celtis (3)
Chamaenerion (3)
Fraxinus (3)
Juncus (3)
Polygonum/Persicaria (3)
Purshia (3)
Buxus (2)
Ceanothus (2)
Cytisus (2)
Rubus (2)
Urtica (2)
Achillea (1)
Arbutus (1)
Arctostaphylos (1)
Carpinus (1)
Chenopodium (1)
Convolvulus (1)
Corylus (1)
Crataegus (1)
Eucalyptus (1)
Fatsia (1)
Guiterrezia (1)
Laburnum (1)
Laurus (1)
Lysimachia (1)
Malus (1)
Prunus (1)
Pyrus (1)
Rhus (1)
Solanaceae (many genera) (1)
Sonchus (1)
Styrax (1)
Vaccinium (1)
Viburnum (1)

Publicado em 03 de julho de 2022, 01:31 AM por psyllidhipster psyllidhipster | 1 comentário | Deixar um comentário

21 de junho de 2022

Notes on the Avocado Psyllids

Background. Avocado (Persea americana) is a plant that probably needs no introduction. The plant is grown around the world and everybody loves avocados! Probably less loved, however, are the creatures responsible for doing this to avocado leaves:

image credit: © José Humberto Castañón González, some rights reserved (CC-BY-NC)

If you have an avocado tree growing in your backyard or somewhere else in your neighborhood, you've probably never seen these leaf galls. Unless you happen to live in Mexico, where Trioza anceps - the psyllid responsible for these galls - is the most frequently observed native Mexican psyllid on iNaturalist.

As of now, the psyllid is not known to be established in the USA or elsewhere outside of its native range in Mexico/Guatemala, where it is quite common. For a plant that has been imported around the world, it is unusual that one of its primary parasites has not yet been inadvertently introduced as well, as has happened with so many other plants (the Asian citrus psyllid comes to mind), though it may just be a matter of time. But while Trioza anceps is common in Mexico, it does not seem to be present in other parts of Persea americana's native range such as South America, which may indicate that the psyllid is very narrowly host specific to only the Mexican/Guatemalan race/subspecies of Avocados.

Species. Trioza anceps is the most commonly observed avocado psyllid due to to the conspicuous nature of its galls, but it is actually just one of at least four species of Trioza on Avocado. All appear to have fairly narrow natural distributions, again indicating that species may have a preference for specific races/subspecies of avocados. The four psyllid species are outlined below.

1. Trioza anceps. Creates leaf galls projecting on the upper surface of the leaves, as pictured above. Mexico/Guatemala
2. Trioza perseae. Similar to Trioza anceps, but leaf galls project from the ventral surface of the leaf. Peru/Columbia. Tuthill notes that this species only effected indigenous South American avocados not the Mexican/Guatemalan variety, even though some of the foliage intermingled. I could not find any evidence of this species on iNaturalist in South American Persea americana observations.
3. Trioza godoyae. This species does not create leaf galls like the previously mentioned species but instead creates marginal leaf roll galls, similar to those created by the Red Bay Psyllid (Trioza magnoliae) on Persea palustris. Known only from Costa Rica. While these galls should be conspicuous, there are no examples of this species yet on iNaturalist.
4. Trioza aguacate. Adults are similar to Trioza anceps, but nymphs do not induce leaf galls. Instead, they cause the deformation of leaves and young shoots. Known only from Mexico, apparently sympatric with Trioza anceps.

Publicado em 21 de junho de 2022, 12:21 PM por psyllidhipster psyllidhipster | 0 comentários | Deixar um comentário

19 de junho de 2022

Brief notes on psyllids associated with Cirio, aka Boojum Tree (Fouquieria columnaris)

Background. Cirio, also known as Boojum Tree (Fouquieria columnaris) is a striking desert plant which is endemic to Baja California, related to the Ocotillo which is common in the deserts of the southwestern USA. Outside of its native range, Boojum Tree may be occasionally used in desert landscaping, botanical gardens, etc, especially in southern Arizona and California.

Calophya is a genus of psyllids primarily associated with plants in the family Anacardiaceae. In North America, most species are associated with Sumac (Rhus) whereas in South America most species are associated with Peppertree (Schinus). There are some exceptions to the rule however, such as the North American Calophya oweni which breeds on mistletoe. Another notable exception is Calophya dicksoni which breeds on the Boojum Tree. The species was first discovered in Punta Prieta, Baja California, by R.C Dickson in late May 1949, who wrote "nymphs and adults were always found together on the Cirio leaves ... the nymphs were so thick in places that the plants were covered with pellets of dried honeydew." I know of no further records of this species other than the type series.

Identification. Calophya dicksoni is similar to other species of Calophya such as the californian Lemonadeberry Psyllid Calophya californica, but is readily identifiable by the presence of 4 pale longitudinal stripes on the thorax similar to what you might find in Cacopsylla species. It can be identified as Calophya by the large cubital cell and the position of the anal break which is distant from the cubital cell.

Closing thoughts. To my knowledge Calophya dicksoni has never been seen in over 70 years. It may very well be restricted to Baja California, but it could also just as easily show up on planted Boojum Tree in California or Arizona. Either way, if you ever run into this plant I don't think it would hurt to check the leaves for the thick dried honeydew as Dickson originally described... who knows, perhaps it could lead to the rediscovery of this species.

Publicado em 19 de junho de 2022, 12:39 PM por psyllidhipster psyllidhipster | 3 comentários | Deixar um comentário

18 de junho de 2022

Help me find psyllids on Snowbell (Styrax sp)

Background. Styrax grows in the the eastern USA and California and until recently was not considered to be a hostplant for psyllids. On May 31 2018 Charley Eiseman submitted to bugguide a psyllid reared from a nymph found on American Snowbell (Styrax americana) which I identified to be Neotriozella pyrifoli. A few days later, Tracy Feldman submitted an observation of psyllid nymphs on the same host plant. The nymphs were found numerously along the dorsal surface of the midrib of the leaves. In May 2021, inat users Chloe and Trevor Van Loon submitted a psyllid from California from California Snowdrop Bush (Styrax redivivus), and I determined the psyllid to be the species Neotriozella sculptoconus. Based on these observations, it would appear that psyllids in the genus Neotriozella (for which host plant associations were previously unknown) are specialists on Styrax*

Observations of Neotriozella are rare, owing in part to the fact that the host plants have been historically unknown. Excluding the Arizona species Neotriozella hirsuta which appears to instead belong to the genus Metatrioza, there are three known species of Neotriozella in the USA, represented by two total observations on iNat. Here's what we know about them so far:

  1. Neotriozella pyrifoli: Distribution: eastern USA, from Louisiana north to Nova Scotia. Host: Styrax americana. Host range: Southeastern USA. It is likely that this species uses a different species of Styrax in the northern parts of its range. Additionally, there are no images of this species on iNat. Can you help fill the gaps?
  2. Neotriozella sculptoconus: Distribution: California. Host: Styrax redivivus. Host range: California endemic. We have only one image of this species on iNat so far. Let's find some more.
  3. Neotriozella laticeps. Distribution: southeastern USA. Host: Unknown. We have a couple images of this species, but the host is unknown. Searching Styrax in the the southeastern USA may uncover new data to help understand this species.

Other potential hosts. Styrax grandifolia in the southeastern USA, Styrax platanifolius in Texas, and Styrax japonicus in the northeastern USA may be potential hosts for either these or (maybe!) undescribed species of Neotriozella. And yes, I am including the Japanese Styrax japonicus because even though it is not native, there are psyllids on this host in Japan...

How to photograph psyllids if you find them. If you are only able to take a single photo, take a lateral shot, but the most important shot for this group of psyllids shows the face. In the genus Neotriozella, the genal cones are closely appressed, unlike many similar species which have divergent genal cones.

We have only two observations of these Styrax psyllids so far, but we know a lot more than we did even just a few years ago. Let's try to find out more about them :)

Publicado em 18 de junho de 2022, 11:04 AM por psyllidhipster psyllidhipster | 2 comentários | Deixar um comentário

05 de junho de 2022

Every nearctic psyllid genus not yet pictured on inat, and where to find them

It's 2022 and it feels like a lot more people are looking for bugs these days. Here are the remaining nearctic* psyllid genera we don't have pics of yet:

*technically a couple of these are neotropical genera that are probably restricted to southern florida, but I'm still going to list them

Limataphalara (1 species, Southern Florida, on Nectandra coriacea)
Leurolophus (1 species, southern Arizona and Texas, on Rhus virens)
Telmapsylla (1 species, Florida, on Avicennia germinans)
Hemitrioza (1 species, eastern USA, on Lactuca, Sonchus? We have this species on bugguide, let's get it here too)
Levidea (1 species, Arizona, on Parthenum incanum (supposedly))
Neotriozella (3 species, but the most common one in the eastern USA has been reared from Styrax americana. It's probably already on inat but unidentified if i had to guess. Also images on bugguide. But if my california friends are looking for a target and are disappointed by the lack of californian options on this list, there is also a California Neotriozella that has never been photographed yet. Host is unknown, but try looking at Styrax redivivus or maybe a related plant, if I had to guess. Good luck!)

And that's it! The host plant is most likely more important than the listed distribution; for example, the mangrove psyllid Leuronota maritima was observed by James Bailey on mangroves in Texas despite only being recorded from Florida. So if any of these hosts are in your area, definitely worth checking for psyllids. Click a hostplant above to see the inat observation range map for that plant.

Publicado em 05 de junho de 2022, 05:50 AM por psyllidhipster psyllidhipster | 1 comentário | Deixar um comentário

17 de maio de 2022

Upcoming changes in Psylloidea taxonomy to reflect Burkhardt, Ouvard, & Percy 2021

Several big changes to come into effect including moving around and erecting some new subfamilies and families, synonomizing a few genera and moving a few species to other genera. The changes should make identifications at the generic level easier on iNat as it resolves a few confusing taxon groups such as Euglyptoneura/Ceanothia and Cacopsylla/Purshivora/Psylla in particular, with the new groupings feeling more natural and easier to understand for the general naturalist. Identifiers may want to revisit observations identified to the genus level as Cacopsylla, in particular specimens from the western USA from Cercocarpus and Purshia, as these species have almost all been moved to Purshivora. More changes outlined below, without mention to genera which have been moved to a different subfamily. None of these changes have yet been implemented on iNaturalist, I will attempt to get everything sorted out by the end of the month but any other dedicated curators may feel free to work on this as well.

New taxa
Amorphicolinae subfam. nov.
Katacephalinae subfam. nov.
Microphyllurinae subfam. nov.
Neophyllurinae subfam. nov.
Platycoryphinae subfam. nov.
Hollisiana gen. nov.

New synonymies
Psyllinae Latreille, 1807 = Cornopsyllini Li, 2011, syn. nov.
Ceanothia Heslop-Harrison, 1961= Euglyptoneura Heslop-Harrison, 1961, syn. nov.
Colophorina Capener, 1973 = Otroacizzia† Klimaszewski, 1996, syn. nov.
Lisronia Loginova, 1976 = Pseudotingidiforma Heslop-Harrison, 1952, nomen nudum, syn. nov.
Acizzia Heslop-Harrison, 1961 = Neoacizzia Park & Taylor, 1996b, nomen nudum, syn. nov.
Psylla Geoffroy, 1762 = Baeopelma Enderlein, 1926, syn. nov.
Psylla Geoffroy, 1762 = Chamaepsylla Ossiannilsson, 1970, syn. nov.
Psylla Geoffroy, 1762 = Psylla (Labyrinthopsylla) Ossiannilsson, 1970, syn. nov.
Spanioneura Foerster, 1848 = Asphagidella Enderlein, 1921, syn. nov.

New combinations
Ceanothia fuscipennis (Crawford, 1914) comb. nov. from Arytaina
Ceanothia minuta (Crawford, 1914) comb. nov. from Arytaina
Ceanothia robusta (Crawford, 1914) comb. nov. from Arytaina
Colophorina muta† (Klimaszewski, 1996) comb. nov. from Otroacizzia†
Euryconus prosapia† (Klimaszewski, 1996) comb. nov. from Otroacizzia†
Euryconus soriae† (Peñalver & García-Gimeno, 2006) comb. nov. from Otroacizzia†
Euryconus tertia† (Klimaszewski, 1996) comb. nov. from Otroacizzia†
Hollisiana caradociforma (Brown & Hodkinson, 1988) gen. et comb. nov. from Limbopsylla
Hollisiana nigrivenis (Brown & Hodkinson, 1988) gen. et comb. nov., from Limbopsylla
Microphyllurus longicellus (Tuthill, 1943) comb. nov. from Paurocephala
Purshivora aculeata (Crawford, 1914) comb. nov. from Arytaina
Purshivora acuminata (Jensen, 1956) comb. nov. from Psylla
Purshivora adusta (Tuthill, 1937) comb. nov. from Euphalerus
Purshivora brevistigmata (Patch, 1912) comb. nov. from Psylla
Purshivora cercocarpi (Jensen, 1957) comb. nov. from Euphalerus
Purshivora coryli (Patch, 1912) comb. nov. from Psylla
Purshivora difficilis (Tuthill, 1943) comb. nov. from Psylla
Purshivora hirsuta (Tuthill, 1938) comb. nov. from Arytaina
Purshivora idahoensis (Jensen, 1946) comb. nov. from Euphalerus
Purshivora insignita (Tuthill, 1943) comb. nov. from Psylla
Purshivora magna (Crawford, 1914) comb. nov. from Psylla
Purshivora maculata (Crawford, 1914) comb. nov. from Psylla
Purshivora media (Tuthill, 1943) comb. nov. from Psylla
Purshivora minuta (Crawford, 1914) comb. nov. from Psylla
Purshivora nigranervosa (Jensen, 1956) comb. nov. from Psylla
Purshivora tantilla (Tuthill, 1937) comb. nov. from Euphalerus
Spanioneura chujoi (Miyatake, 1982) comb. nov. from Psylla
Spanioneura morimotoi (Miyatake, 1963) comb. nov. from Psylla
Spanioneura omogoensis (Miyatake, 1963) comb. nov. from Psylla
Spanioneura sanguinea (Provancher, 1872) comb. nov. from Diraphia
Spanioneura ziozankeana (Kuwayama, 1908) comb. nov. from Psylla
Telmapsylla lagunculariae (Brown & Hodkinson, 1988) comb. nov. from Limbopsylla

Revived combinations
Psylla colorata Löw, 1888comb. rev. from Baeopelma
Psylla diloncha (Caldwell, 1938)comb. rev. from Cacopsylla
Psylla foersteri Flor, 1861comb. rev. from Baeopelma
Psylla hartigii Flor, 1861comb. rev. from Chamaepsylla
Psylla striata Patch, 1911comb. rev. from Cacopsylla
Spanioneura buxi (Linnaeus, 1758), comb. rev. from Psylla

Replacement name
Microphyllurus lii, nom. nov. for Microphyllurus longicellus Li, 2002, nec Tuthill (1943a)

New and revived status
Family Mastigimatidae Bekker-Migdisova, 1973, stat. nov.
Subfamily Cecidopsyllinae Li, 2011, stat. rev. et nov.
Subfamily Homotominae Heslop-Harrison, 1958, stat. rev.
Subfamily Phacopteroninae Heslop-Harrison, 1958, stat. nov.
Tribe Ctenarytainini White & Hodkinson, 1985, stat. rev.
Tribe Dynopsyllini Bekker-Migdisova, 1973, stat. rev.
Tribe Homotomini Heslop-Harrison, 1958, stat. rev.
Tribe Macrohomotomini White & Hodkinson, 1985, stat. rev.
Subtribe Diceraopsyllina Hollis & Broomfield, 1989, stat. nov.
Subtribe Dynopsyllina Bekker-Migdisova, 1973, stat. rev.
Subtribe Edenina Bhanotar, Ghosh & Ghosh, 1972, stat. nov.
Subtribe Macrohomotomina White & Hodkinson, 1985, stat. nov.
Subtribe Homotomina Heslop-Harrison, 1958, stat. nov.
Subtribe Phytolymina White & Hodkinson, 1985, stat. nov.
Subtribe Synozina Bekker-Migdisova, 1973, stat. nov.
Indepsylla† Klimaszewski, 1996, stat. rev.
Microphyllurus Li, 2002, stat. rev
Parapsyllopsis† Klimaszewski, 1996,stat. rev.
Paropsylla† Klimaszewski, 1996, stat. rev.
Primascena† Klimaszewski, 1998, stat. rev.

Publicado em 17 de maio de 2022, 03:31 PM por psyllidhipster psyllidhipster | 0 comentários | Deixar um comentário

25 de abril de 2022

Descriptions of the 8 species of the leafhopper genus Lycioides

Herein I reproduce the original descriptions of the 8 species of the leafhopper genus Lycioides Oman, 1949. I make little attempt to interpret these descriptions, but I present them as-is to perhaps facilitate future identification of this group. At present iNaturalist has identified images of just one of these 8 species while several others remain unidentified.

As far as I can tell this genus has not undergone much study and very few literature references appear to be available other than the original descriptions. All species included in the genus were described prior to Oman's description of the genus in 1949, and as such all species were originally attributed to different genera, most notably Phlepsius.

The genus appears to be restricted to the southwestern USA and Mexico. 4 species are known from the Mojave Desert (L. loculatus, L. mohavensis, L. nevadus & L. stellaris) and 3 are known from the Sonoran Desert (L. condalianus, L. lycioides, & L. ursinus). One additional species (L. amoenus) is recorded from Baja California and southern California. The extent of the distributions of all species is unknown at least to me.

Species Descriptions

Lycioides amoenus Van Duzee, 1923

Known distribution: USA: California (San Diego); MEXICO: Baja California Sur

Lycioides condalianus Ball, 1931

Known distribution: USA: Arizona (Tucson)

Lycioides loculatus Ball, 1916

Known distribution: USA: California (Mojave), Utah (St. George)

Lycioides lycioides Ball, 1931

Known distribution: USA: Arizona (Tucson)

Lycioides mohavensis Ball, 1931

Known distribution: USA: "Mojave Desert"

Lycioides nevadus Ball, 1931

Known distribution: USA: Nevada (Mesquite)

Lycioides stellaris Ball, 1916

Known distribution: USA: Utah (St. George)

Lycioides ursinus Ball, 1931

Known distribution: USA: Arizona (Tucson, Santa Catalina Mountains)

Publicado em 25 de abril de 2022, 06:23 PM por psyllidhipster psyllidhipster | 0 comentários | Deixar um comentário

20 de julho de 2020

Psyllid species on BugGuide but not yet on iNat

BugGuide has long reigned supreme in terms of nearctic psyllid representation but iNat has closed the gap recently. This list details a few species that iNat observers have yet to document.

APHALARIDAE (26/29 bugguide species)

  1. Aphalara monticola
  2. Aphalara persicaria
    Notes: Aphalara spp. are difficult to ID from photos. I can't confirm the ID of the A. monticola specimen on Bugguide, and it is unlikely that Aphalara species on iNat may be identified without a good shot of the genitalia. iNat should aim for more Aphalara observations (we only have 16) but species ID shouldn't be expected.

  3. Pachypsylla cohabitans - Inquiline Hackberry Leaf Gall Psyllid
    Notes: Similar to other leaf-galling Pachypsylla, but supposedly distinguishable by the green abdomen (as opposed to brown), which may be difficult to see in photos. Additionally, this species does not create galls of its own but instead inhabits galls of other Pachypsylla species. Particularly lumpy celtidismamma galls may house multiple cells in which the inquiline species may inhabit.

HOMOTOMIDAE (2/2 bugguide species - great!)

CALOPHYIDAE (7/7 bugguide species - great!)

LIVIIDAE (11/13 bugguide species)

  1. Livia bifasciata
    Notes: Look for galls on Juncus canadensis in the northeastern US and Canada

  2. Livia saltatrix
    Notes: On sedges in northeastern US and Canada

PSYLLIDAE (60/64 bugguide species)

  1. Heteropsylla huasachae
    Notes: Probably already on iNat. Difficult to ID from photos.

  2. Amorphicola pallida
    Notes: Look for these on Amorpha canescens in the midwest.

  3. Cacopsylla sinuata
    Notes: A willow psyllid from northern US and Canada. The willow-feeding Cacopsylla are very difficult and often impossible to identify without examination of the genitalia; iNat has many observations of willow-feeding Cacopsylla but further ID is unlikely. Of the 24 species of Cacopsylla identified on bugguide, this is the only one absent on iNat, which is pretty impressive (and actually, iNat has two additional Cacopsylla spp. that bugguide does not).

  4. Psylla betulaenanae
    Notes: A circumpolar species found on dwarf birch, Betula nana. The nymphs are similar to other Psylla spp and are often accompanied by white fluff, which is often the most conspicuous way to find them. There is one observation on iNat which I suspect to be this species.

TRIOZIDAE (27/34 bugguide species)

  1. Bactericera athenae
    Notes: A little-known species similar to B. antennata. The hostplant and full range of the species is unknown.

  2. Calinda longicaudata
    An easily recognizable southwestern psyllid on Baccharis pteronioides

  3. Ceropsylla sideroxyli
    A southern Florida specie. The white waxy shelters that the nymphs build on Sideroxylon leaves are very conspicuous, and I would not be surprised if these have been inadvertently photographed and filed somewhere on iNat already.

  4. Hemitrioza sonchi
    A fascinating species unlike any other in the nearctic fauna. Found in the eastern US on Sonchus, apparently

  5. Neotriozella pyrifola
    An eastern US species in a genus most easily recognized by form of the genal cones. No host plant has ever been formally recorded, but the bugguide collection was taken from Styrax, and that host should probably be investigated further.

  6. Trioza aylmeriae
    An amelanchier-feeding psyllid in the northern US and Canada

  7. Trioza quadripunctata
    A very well-marked nettle-feeding psyllid. While the other north american nettle feeding species Trioza albifrons is well-represented on iNat, this one has yet to be recorded.

Of the 149 psyllid species represented on bugguide, iNat has all but sixteen. iNat similarly has 11 nearctic species that are unrepresented on bugguide. In total about 160 species are represented across both platforms, which accounts for roughly half of the nearctic fauna.

Publicado em 20 de julho de 2020, 09:00 PM por psyllidhipster psyllidhipster | 0 comentários | Deixar um comentário

30 de junho de 2020

Resolution of the taxonomy of the Syzigium Leaf Psyllid (plus taxon swap help requested)

A new paper published recently has confirmed what many of us have suspected: the Syzigium Leaf Psyllid in California is not Trioza eugeniae, and that name has been misapplied for about three decades. The correct identification for these psyllids is Trioza adventicia. Both species are recognized as valid, with Trioza eugeniae being recognized as native to southern NSW and Trioza adventicia distributed in eastern subcoastal Australia but widely introduced throughout Australia, New Zealand, and California.

On iNat, all observations currently attributed to Trioza eugeniae should instead be Trioza adventicia. There do not appear to be any examples of legitimate Trioza eugeniae yet identified.

What is the best way to handle this change? Taxon swap Trioza adventicia for Trioza eugeniae, but then re-erect Trioza eugeniae? Any assistance in handling this change would be appreciated.

Reference: https://europepmc.org/article/med/31865924

Publicado em 30 de junho de 2020, 05:57 PM por psyllidhipster psyllidhipster | 0 comentários | Deixar um comentário