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

Tribe Tychiini - Leguminous Seed Weevils


Classification of the weevil tribe Lignyodini (Coleoptera, Curculionidae, Tychiinae), with revision of the genus Plocetes.
By Clark, W.E.
Transactions of the American Entomological Society 108(1/2): 11-151., 1982
JSTOR

Clark, W.E. 1982. Classification of the weevil tribe Lignyodini (Coleoptera, Curculionidae, Tychiinae), with revision of the genus Plocetes. Transactions of the American Entomological Society 108(1/2): 11-151.

Abstract

The 89 recognized species of Lignyodini are assigned to two genera, Lignyodes Dejean, with subgenera Lignyodes (13 species, Nearctic and Palearctic), Chionanthobius Pierce (3 species, Nearctic and Neotropical), and Neotylopterus (7 Nearctic species, 1 Neotropical species not seen), and Plocetes (65 species, 1 Nearctic, all others Neotropical).

Classification of the weevil subfamily Tychiinae, with a new genus and species, new combinations, and new synonymy in Lignyodini
By Clark W.E., Warner R.E., Whitehead D.R.
The Coleopterists Bulletin 31: 1-18, 1977

Revision of the weevil genus Neotylopterus Hustache (Coleoptera: Curculionidae)
By Clark W.E.
Ann. Ent. Soc. Amer. 73: 216-230, 1980

Tychius meliloti Stephens new to Canada with a brief review of the species of Tychius Germar introduced into North America...
By R.S. Anderson and A.T. Howden
The Canadian Entomologist 126(6): 1363-1368, 1994
Abstract

all four spp. listed are in the guide, but the ranges might have changed significantly since 1994

The weevil genus Sibinia: natural history, taxonomy, phylogeny, and zoogeography.
By Wayne E. Clark.
Quaestiones Entomolgicae 14(2): 91-387., 1978
Full PDF

Clark, W.E. 1978. The weevil genus Sibinia: natural history, taxonomy, phylogeny, and zoogeography, with revision of the New World species. Quaestiones Entomolgicae 14(2): 91-387.

Revision of the weevil genus Lignyodes Dejean (Coleoptera: Curculionidae) in America north of Mexico
By Clark W.E.
Trans. Am. Ent. Soc. 106: 273-326, 1980

First record of Orchestes fagi (L.) in North America, with a checklist of the North Amercian Rhamphini
By Sweeney, J., R.S. Anderson, and R.P. Webster
The Coleopterists Bulletin, 66: 297-304, 2012
Full title: "First record of Orchestes fagi (L.) (Coleoptera: Curculionidae: Curculioninae) in North America, with a checklist of the North Amercian Rhamphini"

Includes updated key to the genus.

Revision of the subfamily Rhynchaeninae in North America (Coleoptera: Curculionidae)
By Anderson, R.S.
Transactions of the American Entomological Society, 115: 207-312, 1989
Much useful information on our species, but see (1) for information on additional introduced species.