Eleodes (Steneleodes) longicollis LeConte, 1851

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 : 48

Eleodes (Steneleodes) longicollis LeConte, 1851

( Fig. 7A )

Eleodes longicollis haydeni LeConte, 1858

Diagnosis. Body elongate (males) to elongateovate (some females). Pronotum parallel-sided, usually longer than wide, rather finely and sparsely punctured. Profemora unarmed in both sexes, weakly sinuate distally. Prosternum with acute process projected beyond procoxae, with tip distinctly pointing posteroventrally. Elytra elongate, posteriorly acute (males) to inflated (females), punctures small, sometimes in faint striae, often with punctures confused.

Distribution. Mohave,Coconino,Navajo,Apache, La Paz, Yavapai, Gila, Graham, Greenlee, Maricopa, Pinal, Pima, Santa Cruz, and Cochise Counties, Arizona. Generally distributed from Wyoming west to Oregon and south to Michoacán, Mexico.

Remarks. This common species has been found in every Arizona county but Yuma, though almost certainly exists there, and is abundant at mid– elevation localities. Males are quite distinctive by virtue of their very elongate form. Females can be more difficult to separate from congenerics, but the long pronotum and prosternal process serve to diagnose them. Females found in sympatry with E. subnitens , E. carbonarius chihuahuaensis , and E. madrensis are often almost identical to those species, being generally shorter and more inflated. The subspecies E. longicollis haydeni was described from New Mexico and is distinguished by the sutural region of the elytra being dark red in color. Specimens fitting that description can often be found in west-central Arizona.

Figures

Fig. 7. Eleodes species, dorsal habitus. A) E. longicollis, female, B) E. subnitens, male, C) E. extricatus, female, D) E. extricatus arizonensis, male. Scale bars = 1 cm.