Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowse
Info
ImagesLinksBooksData

Black Pachys

Pachybrachis vestigialis Fall - Pachybrachis stygicus Is this a Pachybrachis vestigialis? - Pachybrachis atomarius Pachybrachis nigricornis autolycus Fall - Pachybrachis nigricornis Beetle on goldenrod leaf - Pachybrachis trinotatus Pachybrachis varians Bowditch - Pachybrachis varians Pachybrachis subfasciatus (J. E. LeConte) - Pachybrachis subfasciatus Pachybrachis cruentus LeConte - Pachybrachis cruentus Chrysomelidae, Scriptured Leaf Beetles, lateral - Pachybrachis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Cryptocephalinae (Case-bearing Leaf Beetles)
Tribe Cryptocephalini
Subtribe Pachybrachina
Genus Pachybrachis (Scriptured Leaf Beetles)
No Taxon Black Pachys
Synonyms and other taxonomic changes
Group E - an artificial group of Pachybrachis spp. called out by Fall (1915), the last person to revise Pachybrachis. (1)
Identification
Species wholly or in great part black, or if the pale areas are more extensive they are definitely arranged, not irregular and fragmentary (1)
Remarks
Spp. recognized by Fall (1915) as members of Group E:
(Starred species (*) are tabulated in more than one group)

atomarius*
californicus
carbonarius
confusus*
cruentus
dilatatus
discoideus
hybridus
impurus
lachrymosus
luridus
lustrans
marginatus
pinguescens*
praeclarus
pulvinatus
nigricornis difficilis*
nigricornis nigricornis
signatifrons*
stygicus
subfasciatus
trinotatus
varicolor*
vestigialis*
vulnerosus
wenzeli
Print References
Barney, R.J. 2018. Definition and revision of the atomarius species-group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae), including descriptions of nine new species. The Coleopterists Bulletin 72(1): 9-74. (2)
Fall, H.C. 1915. A revision of the North American species of Pachybrachys. Transactions of the American Entomological Society 41: 291-486. (1)
Works Cited
1.A revision of the North American species of Pachybrachys
H. C. Fall. 1915. Transactions of the American Entomological Society, Vol. 41, No. 3: 291–486 .
2.Definition and revision of the atomarius species-group of NA Pachybrachis (Chrysomelidae: Cryptocephalinae), including 9 n. spp.
Barney, R.J. 2018. The Coleopterists Bulletin 72(1): 9-74.