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Subtribe Pachybrachina
Geographical variation in Pachybrachis othonus (Coleoptera: Chrysomelidae) with descriptions of a new subspecies By Edward U. Balsbaugh
Annals of the Entomological Society of America, Volume 66, Issue 2, Pages 252–261, 1973
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Geographical variation in Pachybrachis nigricornis (Coleoptera: Chrysomelidae). By Balsbaugh Jr, E.U. and W.L. Tucker.
The Coleopterists Bulletin 30(2): 117–131., 1976
JSTOR
Balsbaugh Jr, E.U. and W.L. Tucker. 1976. Geographical variation in Pachybrachis nigricornis (Coleoptera: Chrysomelidae). The Coleopterists Bulletin 30(2): 117–131.
Contributed by Mike Quinn on 24 July, 2017 - 9:51am |
Definition and revision of spumarius species-group of North American Pachybrachis Chevrolat (Chrysomelidae: Cryptocephalinae) By Barney, R.J.
The Coleopterists Bulletin 71(3): 449-460., 2017
BioOne
Barney, R.J. 2017. Definition and revision of the spumarius species-group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae). The Coleopterists Bulletin 71(3): 449-460.
Abstract
The spumarius species-group of Nearctic Pachybrachis Chevrolat, 1836 is defined and revised. The group is composed of one species: Pachybrachis spumarius Suffrian, 1852. A male specimen of P. spumarius, recently discovered in the Natural History Museum in London among some previously unrecognized type material of Suffrian, is herein designated as a lectotype.
Contributed by Mike Quinn on 29 September, 2017 - 1:49pm |
Definition and revision of the pectoralis species-group of eastern North American Pachybrachis (Chrysomelidae: Cryptocephalinae) By Barney
The Coleopterists Bulletin 72(3): 471-499., 2018
BioOne
Barney, R.J. 2018. Definition and revision of the pectoralis species-group of eastern North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae). The Coleopterists Bulletin 72(3): 471-499.
Abstract
The pectoralis species-group of Nearctic Pachybrachis Chevrolat, 1836 is defined and revised. The group is composed of seven species:
Pachybrachis clarki Barney,
Pachybrachis diversus Fall,
Pachybrachis obsoletus Suffrian,
Pachybrachis peccans Suffrian,
Pachybrachis pectoralis (F. E. Melsheimer),
Contributed by Mike Quinn on 8 October, 2018 - 8:46am |
Definition and revision of pubescens species-group of NA Pachybrachis (Chrysomelidae), including descriptions of three n. spp. By Barney, R.J.
The Coleopterists Bulletin, 73(4): 1017-1048., 2019
BioOne
Barney, R.J. 2019. Definition and revision of the pubescens species-group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae), including descriptions of three new species. The Coleopterists Bulletin, 73(4): 1017-1048.
Abstract
The pubescens species-group of Nearctic Pachybrachis Chevrolat, 1836 is defined and revised. The group is composed of 12 species:
P. analis LeConte;
P. baja Barney, new species;
P. connexus Fall;
P. donneri Crotch;
P. gilberti Barney, new species;
Contributed by Mike Quinn on 2 January, 2020 - 5:23pm |
Redescription of Four Predominantly Yellow, Densely Punctate Species of Pachybrachis of the W. USA, and Description of a New Sp. By Barney, R.J.
The Coleopterists Bulletin 74(4): 637-646. , 2020
BioOne
Barney, R.J. 2020. Redescription of four predominantly yellow, densely punctate species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) of the western USA, and description of a new species, The Coleopterists Bulletin 74(4): 637-646.
Abstract
A new species of Pachybrachis Chevrolat from the western United States is described.
Contributed by Mike Quinn on 26 December, 2020 - 11:28am |
Key to all sixty-four species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) in the eastern USA. By Barney, R.J.
The Coleopterists Bulletin, 73(1): 85-96., 2019
BioOne
Barney, R.J. 2019. Key to all sixty-four species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) in the eastern USA. The Coleopterists Bulletin, 73(1): 85-96.
Abstract
A key to the males of all 64 species of Pachybrachis Chevrolat, 1836 (Coleoptera: Chrysomelidae: Cryptocephalinae) currently known from the eastern USA is presented. Type, figure, and map citations from the literature are given for each species. Pachybrachis newmani Jacobson is reported as a replacement name for Pachybrachi
Contributed by Mike Quinn on 2 April, 2019 - 9:45am |
Descriptions of four new species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) of the eastern USA. By Barney, R.J.
The Coleopterists Bulletin, 73(1):67-75., 2019
BioOne
Barney, R.J. 2019. Descriptions of four new species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) of the eastern USA. The Coleopterists Bulletin, 73(1):67-75.
Abstract
Four new species of Pachybrachis Chevrolat, 1836 in the eastern USA are described: Pachybrachis cubs Barney, new species; Pachybrachis ekstromorum Barney, new species; Pachybrachis troosevelti Barney, new species; and Pachybrachis zellersorum Barney, new species. Pachybrachis zellersorum belongs to the Pachybrachis viduatus species-group, and the other three new species belong to the Pachybrachis atomarius species-group. A description, figure, and range map are presented for each new species. Couplets in published keys are modified to accommodate the new species.
Contributed by Mike Quinn on 2 April, 2019 - 9:30am |
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