Odontocorynus falsus (LeConte)

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 falsus (LeConte)

( Fig. 33 )

Centrinus falsus LeConte 1876: 315 . Lectotype male, designated here, with red disk, labeled: ‘‘C./ falsus/ LeC.’’, ‘‘Horn Coll/ 8938’’, ‘‘ LECTOTYPUS / Centrinus / falsus LeConte / Prena design. 2007’’ (MCZ). Paralectotype 1, female, with disk and label: ‘‘C./ falsus/ Horn’’, ‘‘LeConte/ Collection’’ (MCZ).

Geraeus falsus . Leng (1920).

Centrinaspis falsa . Casey (1920).

Centrinus (Odontocorynus) falsus . Wagener Green (1920).

Odontocorynus falsus . O’Brien & Wibmer (1982).

Nicentrus falsus . Kuschel (1983); species erroneously attributed to Casey.

Recognition. In the United States, this is the only Odontocorynus with a slender body shape; it is part of a complex that is more diverse in Mexico (see also Wagener Green 1920). Male O. falsus are recognized easily by the pronotal protuberance on the anterolateral margin, which is absent in all congeners in the US. Female O. falsus were confused frequently with Nicentrus and Linogeraeus in collections. They can be recognized by the laterally costate prosternal channel, which in the US otherwise occurs only in Nicentrus grossulus , a species with a shorter rostrum and bulky pronotum. The Mexican O. procerus is very similar in both sexes, and can be distinguished by character states of the antenna.

Distribution. Eastern and central United States ( Fig. 33 ).

Type locality. United States, site not specified .

Material examined. UNITED STATES: Alabama ( JPPC 1 , USNM 5 ) , Arkansas ( TAMU 2 ) , Connecticut ( AMNH 2 , CWOB 3 ) , District of Columbia ( USNM 4 ) , Georgia ( CWOB 1 ) , Indiana ( CWOB 9 , JPPC 2 , USNM 1 ) , Iowa ( CWOB 1 , JPPC 2 , USNM 1 ) , Kansas ( USNM 5 ) , Maryland ( CNCI 5 , JPPC 2 , USNM 13 ) , Massachusetts ( AMNH 1 , USNM 1 ) , Missouri ( CNCI 1 , JPPC 2 , TAMU 3 ) , New Hampshire ( AMNH 1 ) , New York ( AMNH 5 , USNM 1 ) , North Carolina ( AMNH 2 , CMNC 2 , CWOB 4 , TAMU 2 ) , Oklahoma ( CWOB 8 , JPPC 4 , TAMU 23 ) , Pennsylvania ( AMNH 1 , USNM 2 ; Wagener Green 1920) , South Carolina ( JCCC 7 ) , Tennessee ( CWOB 1 ) , Texas ( JPPC 2 , TAMU 5 ) , Virginia ( USNM 2 ) , West Virginia ( CMNC 3 , CWOB 3 , JPPC 2 ) , Wisconsin ( CWOB 1 ) ; without locality data ( MCZ 3 ) . Total 151 specimens.

Temporal occurrence. June [1 date], August to October.

Plant association. Solidago sp. (3X).

Nomenclatural notes. The description states that the type series included four specimens, males and females, from the middle and southern United States. The two specimens mentioned above under type material are mounted exactly the same way and may have been collected together. I was unable to recognize the remaining two specimens of the original series. Possible candidates are one

256 specimen labeled ‘‘N.Y’’, Coll/ MLLinell’’, ‘‘Centrin./ falsus/LeC.’’ ( USNM), five specimens with the first labeled ‘‘Topeka Ks/ Popenoe.’’, ‘‘225’’, ‘‘LeConte/ det.’’, ‘‘ Centrinus / falsus/ LeC./ 8938’’ ( USNM), one specimen labeled ‘‘Horn Coll/ H’’, ‘‘79.’’ ( MCZ), and two specimens in the Casey Collection labeled ‘‘Ala’’ and ‘‘Ia’’ ( USNM). These are the only correct identifications I have seen, except for those by Wagener Green (1920) and O’Brien & Wibmer (1982) who placed the species in Odontocorynus . Because not all syntypes could be recognized and LeConte and Horn attribute the authorship to each other, I here designate the male specimen of the Horn Collection as lectotype, with the purpose of promoting stability of the name.

Figures

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