Odontocorynus pulverulentus (Casey)

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 pulverulentus (Casey)

( Figs. 12, 16 , 33 )

Centrinus pulverulentus Casey 1892: 600 . Lectotype female, here designated, labeled ‘‘N.C.’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘pulverulentus-2/ PARATYPE

262 USNM/ 37881’’, ‘‘ LECTOTYPUS / Centrinus / pulverulentus Casey / Prena design. 2007.’’ Paralectotypes 1 male, 4 females, labeled (1) ‘‘N.C.’’, ‘‘Oi’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37881’’, ‘‘pulverulentus/ Csy.’’; (2) same as lectotype except ‘‘pulverulentus-3’’; (3) ‘‘Col.’’, ‘‘June’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37875’’, ‘‘coloradensis/ Csy’’; (4) ‘‘Luling Tex/ Wickham’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37882’’, ‘‘lulingensis/ Csy’’; (5) ‘‘Col.’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37876’’, ‘‘densissimus/ Csy’’ [see nomenclatural notes below].

Odontocorynus pulverulentus . Blatchley & Leng (1916).

Odontocorynes coloradensis Casey 1920: 418 (in table). Holotype female, labeled ‘‘Col.’’, ‘‘June’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37875 ’’, ‘‘coloradensis/ Csy.’’ New synonymy.

Odontocorynus lulingensis Casey 1920: 422 (in table). Holotype female, labeled ‘‘Luling Tex/ Wickham’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37882 ’’, ‘‘lulingensis/ Csy.’’ New synonymy.

Odontocorynus densissimus Casey 1920: 419 (in table). Holotype female, labeled ‘‘Col.’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37876 ’’, ‘‘densissimus/ Csy.’’ New synonymy.

Recognition. This is the only species with scaled elytral striae. If the scales are abraded, one should verify the absence of fine hairs in the punctures with at least 40X magnification.

Distribution. United States and possibly adjacent Mexico, southern half of Great Plains ( Fig. 33 ).

Type locality. United States, supposedly North Carolina .

Material examined. UNITED STATES: Colorado ( CWOB 2 , USNM 2 ) , Kansas ( USNM 2 ) , Minnesota ( CWOB 7 ) , Nebraska ( CMNC 3 , CWOB 35 , JPPC 1 , TAMU 1, UNSM 26 , USNM 18 ) , New Mexico ( CWOB 6 , TAMU 5 , USNM 6 ) , North Carolina ( USNM 4 , provenance suspect) , Oklahoma ( CWOB 8 , TAMU 14 , USNM 29 ) , South Dakota ( TAMU 2 ) , Texas ( AMNH 3 , CMNC 20 , CWOB 59 , TAMU 156 , USNM 129 ) , Wyoming ( TAMU 1 ) . Total 539 specimens.

Temporal occurrence. Mid April to mid October.

Plant association. Asteraceae : Aphanostephus skirrhobasis (1X), Gaillardia pulchella (2X), Gutierrezia sarothrae (2X), Helianthus sp. (2X), Ratibida columnaris (2X), Rudbeckia sp. (2X), Thelesperma simplicifolium (3X), Gutierrezia sarothrae [as Xanthocephalum sarothrae ] (1X). Fabaceae : Vigna unguiculata [as black-eyed pea] (1X). Lamiaceae : Monarda punctata [as horse mint] (4X). Solanaceae : Solanum torreyi (1X).

Nomenclatural notes. Casey (1892) states ‘‘described from the female’’ and later ( Casey 1920) restricts the concept of O. pulverulentus to the series from North Carolina. Accordingly, I have designated a female specimen as lectotype and disregarded Buchanan’s preliminary (but annotated) designation of a male. Included in the type series of O. pulverulentus are the single type specimens (holotypes by monotypy) of O. coloradensis , O. lulingensis , and O. densissimus which Casey (1920) described based on individual variation; not included is the differently labeled male from North Carolina ( USNM type 1396) that Buchanan transferred from the addenda to the tray with the type series in 1942. The spatial distribution of the material available does not support Casey’s record from North Carolina; the ‘‘N. C.’’ on the labels of the syntypes is probably erroneous. Buchanan (1935) gives a brief account of how Casey removed original labels and replaced them with space-saving printed cards. Further cases of mislabeling are documented by Setliff (2007), Anderson (2008), and in this paper (three Brazilian records under O. umbellae ).

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. 33–34. Map of central and eastern United States showing distributions of O. calcarifer, O. falsus, O. pulverulentus, and O. umbellae.