Eleodes (Litheleodes) arcuatus Casey, 1884

Johnston, M. Andrew, Fleming, David, Franz, Nico M. & Smith, Aaron D., 2015, Amphidorini Leconte (Coleoptera: Tenebrionidae) of Arizona: Keys and Species Accounts, The Coleopterists Bulletin (mo 14) 69, pp. 27-54 : 44

Eleodes (Litheleodes) arcuatus Casey, 1884

( Fig. 9C )

Eleodes sonorae Champion, 1884

Diagnosis. Body ovate, shiny black. Pronotum subquadrate, lateral margins moderately and evenly arcuate, tending to be slightly narrower posteriorly, anterior angles very slightly produced. Elytra densely covered in fairly minute punctures arranged more or less in striae, posterior margin of elytra abruptly and arcuately declivous. Profemora unarmed in both sexes, probasitarsis unmodified in males, with pencil brush of dark spicules interrupting apex of plantar surface in females. Prosternum widest near posterior margin of procoxae, narrowing evenly to a point well-posterior of procoxae. Male parameres strongly deflexed ventrally at apex. Female genitalia with coxite broadly triangular, gonostyle subquadrate, positioned on posterolateral face of coxite.

Distribution. Yavapai, Gila, Pinal, Pima, Santa Cruz, and Cochise Counties, Arizona. New Mexico, Texas; Sonora and Chihuahua, Mexico.

Remarks. This species strongly resembles E. debilis and is sympatric with it in the southeastern portion of the state. Eleodes arcuatus can be separated from E. debilis by the smaller elytral punctures, rounded posterior of the abdomen, and most readily by the genitalia.

Figures

Fig. 9. Eleodes species, dorsal habitus. A) E. rileyi, female, B) E. leptoscelis, paratype, male, C) E. arcuatus, female, D) E. debilis, female. Scale bars = 1 cm.