Discoderus parallelus (Haldeman, 1843)

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 718

Discoderus parallelus (Haldeman, 1843)

Selenophorus parallelus Haldeman, 1843b: 301. Type locality: southeastern Pennsylvania (Haldeman 1843a: 297). Syntype(s) presumably lost.

Pangus americanus Motschulsky, 1859a: 137 [nomen dubium]. Type locality: «Californie» (original citation). Syntype(s) location unknown (possibly in ZMMU though not listed in Keleinikova 1976). Synonymy established by Casey (1914: 163). Note. Horn (1883c: iv) stated that this species is probably identical with Discoderus impotens (LeConte) and that Motschulsky’s specimen(s) came from the Piccolomini collection. If exact, then the type locality is incorrect and the specimen(s) has probably been collected in Texas or northern Mexico.

Discoderus hesperus Casey, 1914: 163. Type locality: "Boulder [Boulder County], Colorado" (original citation for the lectotype). Lectotype (♀), designated by Lindroth (1975: 141), in USNM [# 47905]. Synonymy established by Lindroth (1968: 831).

Discoderus parvuliceps Casey, 1924: 121. Type locality: "Wray [Yuma County], Colorado" (original citation). Lectotype (♂), designated by Lindroth (1975: 141), in USNM [# 47903]. Synonymy established by Lindroth (1968: 831).

Discoderus gener Casey, 1924: 121. Type locality: "Wawawai [Whitman County], Washington" (original citation). Lectotype (♂), designated by Lindroth (1975: 141), in USNM [# 47904]. Synonymy established by Hatch (1953: 178), confirmed by Lindroth (1968: 831).

Distribution.

This species ranges from southeastern New Hampshire (Rockingham County, Ross T. Bell pers. comm. 1992) to the Okanagan Valley in south-central British Columbia (Lindroth 1968: 831), south to northern Oregon (Union, Wallowa, and Wasco Counties, James R. LaBonte pers. comm. 2009), northern Utah (Salt Lake County, Foster F. Purrington pers. comm. 2009), New Mexico (Fall and Cockerell 1907: 161), western and central Texas (Lee and Brewster Counties, MCZ; Lindroth 1968: 831), southwestern Alabama (Clarke County, CMNH), central Georgia (Fattig 1949: 49), and eastern South Carolina (Ciegler 2000: 104).

Records.

CAN: BC, ON USA: AL, AR, AZ, CO, DC, GA, IA, ID, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WY