Odontocorynus larvatus (Boheman)

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 larvatus (Boheman)

( Figs. 26, 30 , 32 , 35 )

Centrinus larvatus Boheman 1844: 218 . Lectotype female, here designated, labeled: ‘‘Typus’’, Champion’s handwriting ‘‘ Odontocorynus / larvatus Boh’’, ‘‘ C. Larvatus / Chevrol./ Mexico – Chev’’, ‘‘65’’, ‘‘ ♀ ’’ (NHRS, Schönherr Collection); paralectotype female, labeled: ‘‘Typus’’, ‘‘ Mexico / Chevrolat:/ 683.’’, ‘‘Oi’’ [error], ‘‘abut/ … [illegible]’’, ‘‘39’’ (NHRS, Chevrolat Collection).

Centrinus (Odontocorynus) larvatus . Casey (1892).

Odontocorynus larvatus . Champion (1908).

Nicentrus contractus Casey 1892: 609 (table), 613. Holotype female, labeled: ‘‘Capron/ 4.4 Fla’’, ‘‘CASEY/ bequest/ 1925’’, ‘‘TYPE USNM/ 37935 ’’, ‘‘contractus/ Csy.’’. New synonymy.

Recognition. Odontocorynus larvatus generally can be recognized by its relatively dense vestiture, except for very small specimens which tend to have rather inconspicuous scales. In northern Florida, where O. umbellae occurs, female specimens are needed when the identification based on male character states alone remains inconclusive. The same applies to O. salebrosus , which can be distinguished reliably from O. larvatus based on female character states. Odontocorynus calcarifer is another sympatric species, and should be separable from O. larvatus by using Table 1.

Distribution. United States, Florida and adjacent coast of Alabama ( Fig. 35 ); single records from Texas (USNM) and Mexico (type series) are unconfirmed and probably erroneous.

Type locality. Supposedly Mexico .

Material examined. MEXICO: without locality data ( NHRS 2). UNITED STATES: Florida ( AMNH 7, CMNC 75, CNCI 42, CWOB 405, JPPC 14, TAMU 152, USNM 534), Alabama ( CWOB 29, JPPC 10, USNM 21), Texas without locality ( USNM 1). Total 1294 specimens.

Temporal occurrence. May to mid October.

Plant association. Annonaceae : Asimina pygmaea (1X). Asclepiadaceae : Asclepias sp. (2X). Asteraceae : Eupatorium mohrii (3X), Flaveria linearis (13X). Clusiaceae : Hypericum edisonianum (1X). Cyperaceae : Cyperus sp. (18). Droseraceae : Drosera sp. (3X). Fabaceae : Vigna unguiculata [as black-eyed pea] (1X). Onagraceae : Gaura angustifolia (2X).

258 Nomenclatural notes. Boheman described Centrinus larvatus from the Chevrolat Collection. I received two identically pinned female specimens from the NHRS; one stood in the Chevrolat Collection, the other in the Schönherr Collection, both labeled as types. Although the description gives no information about the number of specimens included, I consider both as syntypes. Because of this ambiguity and Champion’s (1908) citation of a single type, I here designate the specimen of the Schönherr Collection as lectotype of C. larvatus . Odontocorynus larvatus was recognized in some collections as a distinct but unnamed species, but has never been associated with this long-available name.

Figures

Figs. 23–30. Odontocorynus spp., 23–26, rostrum, male, lateral. 23) O. umbellae; 24) O. calcarifer; 25) O. salebrosus; 26) O. larvatus. 27–30, rostrum, female, lateral. 27) O. umbellae; 28) O. calcarifer; 29) O. salebrosus; 30) O. larvatus.

Figs. 31–32. Odontocorynus spp. 31) O. calcarifer, aedeagus, dorsal; 32) O. larvatus, aedagus, dorsal, tegmen omitted.

Figs. 35–36. 35) Map of Florida showing distribution of O. larvatus; 36) Map of United States (without northwest) and bordering regions showing distributions of O. salebrosus and O. townsendi.