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TaxonomyBrowse
Info
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Species Pachybrachis chester

Pachybrachis chester Riley & Barney - Pachybrachis chester - male Pachybrachis chester Riley & Barney - Pachybrachis chester - male Pachybrachis chester Riley & Barney - Pachybrachis chester - male Pachybrachis chester Riley & Barney - Pachybrachis chester - male Pachybrachis chester Riley & Barney - Pachybrachis chester - male Pachybrachis chester Riley & Barney - Pachybrachis chester - male
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 (Striped Pachys)
Species chester (Pachybrachis chester)
Explanation of Names
Pachybrachis chester Riley & Barney
named for the type locality
Size
male: length 2.6–2.9 mm (mean = 2.7 mm, n = 4) (1)
female: length 2.9–3.3 mm (mean = 3.1 mm, n = 3)
Range
GA-SC (1) (see Remarks for details)
Life Cycle
unknown (1)
Remarks
Known only from one locality in Georgia and one locality in South Carolina. (1)
(holotype + 6 paratypes).
GEORGIA: Dodge Co., Chester, 1.vi.1904, Georgia State Collection [1♂, holotype, USNM]; same data, except 26.v.1904, Georgia State Collection [1♂, USNM; 1♀, viduatus, MCZ-FALL] {3}.
SOUTH CAROLINA: Williamsburg Co., Kingstree, 25.v.1937, J. G. Watts [2♂♂ 2♀♀, CUAC] {4}.
See Also
externally inseparable from some members of the viduatus complex (P. bloxham, P. kentuckyensis, and P. viduatus), but it may be separated from P. picturatus by its heavy black maculation and dense, coarse dorsal punctation.
in females, the lateral vitta is reduced in comparison with most specimens of the similar species. (1)
Works Cited
1.Definition and revision of the viduatus species-group of North American Pachybrachis Chevrolat (Chrysomelidae: Cryptocephalinae)
Riley, E.G. and R.J. Barney. 2015. The Coleopterists Bulletin 69(1): 25–59.