Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Pachybrachis circumcinctus

Cylindrical leaf beetle - Pachybrachis circumcinctus beetle ???? - Pachybrachis circumcinctus beetle ???? - Pachybrachis circumcinctus Scriptured Leaf Beatle - Pachybrachis circumcinctus - female Leaf Beetle, sp - Pachybrachis circumcinctus Pachybrachis? - Pachybrachis circumcinctus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Longhorn and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Cryptocephalinae (Case-bearing Leaf Beetles)
Tribe Cryptocephalini
Subtribe Pachybrachina
Genus Pachybrachis (Scriptured Leaf Beetles)
No Taxon (Striped Pachys)
Species circumcinctus (Pachybrachis circumcinctus)
Explanation of Names
Pachybrachis circumcinctus Crotch 1874
Identification
The broad dark vitta, orange pronotum and range
… John R. Watts, 15 July, 2008
Range
CA-WA (1)
Season
May-Jun (BG data)
See Also
Closely allied and generally similar to bivittatus, differing as follows. The size is on the average a little smaller, surface more shining, the alutaceous sculpture often nearly lacking (normally quite distinct in bivittatus), elytra each with a single broad black vitta, the lateral edge and epipleuron black around the lobe nearly to base; prothorax rufous or rufo-testaceous with side margins paler and often with three small more or less distinct darker to blackish basal spots; eyes separated in the male by about two and one-half and in the female by rather more than three times the length of the basal joint of the antennae, the distance in the female, however, not quite as great as the vertical length of the eye; the two outer series of elytral punctures less regular than in bivittatus's body beneath black, the apex of the last ventral, on each side of the middle, pale, the sides of the body usually not pale; tibiae sometimes in part blackish, the tarsi more evidently so than in bivittatus. (2)
Internet References
Type - MCZ, Harvard
Works Cited
1.Catalog of Leaf Beetles of America North of Mexico
Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.
2.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 .