Dipropus Germar

Johnson, Paul J., 2016, Five new species of Dipropus Germar (Coleoptera: Elateridae) from west-central North America, and a lectotype designation for Elater soleatus Say, Insecta Mundi 2016 (523), pp. 1-27 : 3-4

Dipropus Germar

Dipropus Germar, 1839: 215

Type species: Dicrepidius laticollis Eschscholtz 1829: 31 , designation of Duponchel 1845: 61 (not Elater pexus Germar 1824: 55 , of Hyslop 1921: 641)

Ischiodontus Candèze 1859: 90 (synonymy by Arnett 1962: 505)

Type species: Ischiodontus pinguis Candèze 1859: 100 , designation of Hyslop 1921: 651

Tricrepidius Motschulsky 1859: 366 (synonymy by Horn 1883: v)

Type species: Tricrepidius triangulicollis Motschulsky 1859: 367 , by monotypy

Diagnosis. Characters of Elaterinae , Ampedini , Dicrepidiina, Dipropus (modified from Casari 2013). Coloration brunneotestaceous, brunneous, castaneous, rufopiceous, to nigrous, sometimes with weak to strong submetallic blue to green reflections or iridescence dorsally. Body form usually moderately elongate, subcylindrical. Integument moderately to strongly punctured, punctures often umbilicate, fine to coarse, sparse to coalescent. Frontal margin broadly arcuate, carina complete, extending anteriorly, often a distance greater than the length of the labrum. Subfrontal clypeal remnant evenly contoured, ecarinate. Antenna serrate in both sexes, with 11 antennomeres; antennomere 2 short, subcylindrical; antennomere 3 serratiform, subequal in length or shorter than antennomere 4; pubescence similar between sexes, antennomere 2 with primary setae only; males often with antennomeres 3–5 and 6–10 of unequal lengths. Pronotosternal suture excavate anteriorly, with hypomeral margin explanate and bordering carina elevated to form a channel receiving the antenna in repose. Mesoventrite with fossal margin gradually sloped. Metacoxal lamina sinuate posteriorly, extended and strongly angular over the trochanter. Tarsomeres 1–4 progressively shortening, tarsomere 4 very small; ventral membranous lobes on tarsomeres 1–3, often large on tarsomeres 2 and 3.

Casari and Biffi (2012) summarized much of the available knowledge of larval morphology and biology, and provided a key to genera. Casari (2013) provided a key to the genera of Dicrepidiina based on adults.