A Review of the Species of Geraeus Pascoe and Linogeraeus Casey Found in the Continental United States (Coleoptera: Curculionidae: Baridinae) Author Prena, Jens text The Coleopterists Bulletin 2009 2009-06-30 63 2 123 172 http://dx.doi.org/10.1649/0010-065x-63.2.123 journal article 10.1649/0010-065x-63.2.123 1938-4394 10101089 D00E60FB-9B19-4546-98D2-98436F5CCA2E Linogeraeus squamirostris (Champion) , new combination ( Figs. 53, 54 , 78 ) Geraeus squamirostris Champion 1909:488 . Syntypes , 2 males , 4 females , 1 labeled ‘‘Cuernavaca/ Mor, Mex./ Wickham,’’ ‘‘WICKHAM/ Collection/ 1933,’’ ‘‘ ♀ ,’’ Champion’s handwriting ‘‘ Geraeus / squamirostris/ Ch’’ ( USNM 1 ); 1 ♀ with same labels except Champion’s identification, type status unclear ( USNM ) ; other syntypes ( BMNH ) not examined. Recognition. Linogeraeus squamirostris can be recognized by its rather large, elongate pronotum ( Fig. 53 ) and sexual dimorphism. Females have the rostrum basally humped and distally flattened; males have a more evenly curved rostrum with conspicuous scales on the ventral side ( Fig. 54 ) and small, tuberculiform prosternal spines. The total length of the studied specimens was 3.2–4.0 mm. Distribution. The species occurs in central Mexico and reaches the United States in southern Arizona ( Fig. 78 ). Type locality. Morelos , Mexico . Material examined. United States : Arizona ( CWOB 1 ) . Mexico : Morelos ( USNM 2 ) , Nayarit ( CWOB 1 ) , Oaxaca ( CWOB 3 ) . Total 7 specimens . Temporal occurrence. August [1 date]. Plant associations. Unknown. Note. Linogeraeus squamirostris is newly recorded for the United States . The single specimen was swept from grass in Madera Canyon, Santa Rita Mountains in 1961. Although L. squamirostris has only been collected once in the United States , I consider the species as native to the United States .