Odontocorynus latiscapus Champion

Prena, Jens, 2008, Review ofOdontocorynusSchönherr (Coleoptera: Curculionidae: Baridinae) with Descriptions of Four New Species, The Coleopterists Bulletin 62 (2), pp. 243-277 : 243-277

Odontocorynus latiscapus Champion

( Figs. 10 , 37 )

Odontocorynus latiscapus Champion 1908: 318 . Syntypes 10, 9 males, 1 not located, labeled: (1) ‘‘Type’’, ‘‘Oi’’, ‘‘sp. figured’’, ‘‘Omilteme,/ Guerrero,/ 8000 ft. / July, H.H. Smith.’’; (2) ‘‘Oi’’, ‘‘Omilteme,/ Guerrero,/ 8000 ft. / July, H.H. Smith.’’; (3) ‘‘Oi’’, ‘‘Omilteme,/ Guerrero,/ 8000 ft. / August, H.H. Smith.’’; (4–5) ‘‘Oi’’, ‘‘Xucumanatlan,/ Guerrero,/ 7000 ft. / July, H.H. Smith.’’; (6) ‘‘Oi’’, ‘‘PARADA’’, ‘‘ Mexico / Salle Collection’’; (7) ‘‘Oi’’, ‘‘Cerro de Plumas/ Mexico./ Hoege.’’; (8) ‘‘Omilteme,/ Guerrero,/ 8000 ft. / July, H.H. Smith.’’, ‘‘Oi’’, ’’GCChampion/Determined’’, handwritten ‘‘ Odontocorynus / latiscapus, Cha. ’’; (9) ‘‘Cerro de Plumas/ Mexico./ Hoege’’, ‘‘Oi’’, ‘‘CASEY/ bequest/ 1925’’, handwritten ‘‘Odontoc./ latiscapus/ Ch’’; specimens 1–7 with printed label ‘‘B.C.A. Col. IV.5./ Odontocorynus / latiscapus,/ Champ.’’ (BMNH 7, USNM/Casey Coll. 2).

Recognition. Within the complex with the laterally carinate prosternal channel, male O. latiscapus can be easily recognized by the peculiar modification of the scape. Female specimens are very similar to those of O. falsus , O. procerus , O. creperus , and probably O. subvittatus [not studied]. Odontocorynus falsus , and possibly O. procerus , can be separated because of allopatry, and O. creperus because of its shorter desmomere 2 and more widely spaced pronotal punctures. Female O. subvittatus were not available for study or may not have been recognized by me. The female O. latiscapus available for study tended to have a relatively dense, yellowish dorsal vestiture which is noticeably different from that of males. Because of this sexual dimorphism, Champion did not include a single female specimen in the type series.

Distribution. Mexico, except Atlantic side ( Fig. 37 ).

Type locality. Mexico .

Material examined. MEXICO: Durango ( MNHUB 1 ) , Guerrero ( BMNH 5 , USNM 1 ) , Hidalgo ( CWOB 1 ) , México D.F. ( CWOB 1 ) , Nayarit ( CWOB 1 , TAMU 1 ) , Oaxaca ( BMNH 3 , CMNC 14 , CWOB 6 , JPPC 11 , TAMU 62 , USNM 2 ). Total 108 specimens .

Temporal occurrence. July to early September.

Plant association. None recorded.

Nomenclatural notes. The series at the BMNH includes one female specimen from Oaxaca, with Champion’s handwritten label ‘‘? latiscapus ♀ Ch’ ’ and a printed label referring to the Biologia Centrali-Americana. The description does not mention this specimen, therefore it does not belong to the type series .

Figures

Figs. 1–18. Odontocorynus spp., 1–2, body shapes, male, dorsal. 1) O. creperus; 2) O. salebrosus; 3) mesotibia, O. umbellae, female; 4) metatibia, O. calcarifer, male; 5–9, antenna, club and distal desmomeres, male. 5) O. tectus; 6) O. salebrosus; 7) O. umbellae; 8) O. nunume; 9) O. creperus; 10–14, antennal scape, dorsal, male. 10) O. latiscapus; 11) O. salebrosus; 12) O. pulverulentus; 13) O. calcarifer; 14) O. umbellae. 15–18, antennal scape, female. 15) O. salebrosus; 16) O. pulverulentus; 17) O. calcarifer; 18) O. umbellae.

Figs. 37–39. Map of central Mexico (top) and northern Central America and Mexico (bottom) showing distributions of O. creperus, O. histriculus, O. latiscapus, O. luteogramma, O. nunume, O. procerus, O. subvittatus, O. suturaflava, and O. tectus.