Explanation of Names
Apteromechus texanus Fall 1925
Body is 2.9 to 3.4 mm in length,
1.3 to 1.6 mm in maximum width at mid-length of the elytra. (Riley & King, 2009)
Known Range: Brownsville area of Texas (Cameron County).
Whitehead (1979) suggests that the material cited as "A. ferratus (Say)" by Champion (1906) from Tampico, Mexico (Veracruz) is probably conspecific with A. texanus.
O’Brien and Wibmer (1982) list the range of this species as Arkansas and Texas. The Arkansas record seems unlikely, and the source for this record is not given.
We now have a BG record from ne TX, so the species' range extending to AR seems likely, and as such this sp. should be dropped from TPWD's SGCN list...
Number of compiled Texas collecting events by month:
April (1), May (8), June (3), July (1), August (1), October (1). (Riley & King, 2009)
Type Locality: Brownsville, Cameron County, Texas
Texas Parks & Wildlife considers this to be a "Species of Greatest Conservation Need" (SGCN) (2)
May be confused with similar-sized cryptorhynchine weevils found in the Lower Rio Grande Valley, most notable is an undetermined Apteromechus species only recently detected in the United States.
Fall, H.C. 1925. New species of Coleoptera or (sic) recent discovery. Bulletin of the Brooklyn Entomological Society, 20: 180-183.
O’Brien, C.W. and G.J. Wibmer. 1982. Annotated checklist of the weevils (Curculionidae sensu lato) of North America, Central America, and the West Indies (Coleoptera: Curculionoidea). Memoirs of the American Entomological Institute (34): i-ix + 382 pp.
Riley, E.G. & J.E. King. 2009. Element record datasheets submitted to Texas Parks & Wildlife Department, Wildlife Division, Austin.
Whitehead, D.R. 1979. Notes on Apteromechus Faust of America north of Mexico (Coleoptera: Curculionidae: Cryptorhynchinae). Proceedings of the Entomological Society of Washington 81: 230-233.