Stenotarsus obtusus Gerstaecker (1858:310)

Roubik, David W. & Skelley, Paul E., 2001, Stenotarsus Subtilis Arrow, The Aggregating Fungus Beetle Of Barro Colorado Island Nature Monument, Panama (Coleoptera: Endomychidae), The Coleopterists Bulletin 55 (3), pp. 249-263 : 255-256

Stenotarsus obtusus Gerstaecker (1858:310)

Diagnosis. Length 5.0–6.0 mm; width 3.5–4.0 mm. Body red­orange, broadly oval; elytra with distinct coarse punctures near the humerus; male with spine on metatrochanter ( Fig. 12 ), metasternum with a circular depression at anterior margin, hind tibia curved with internal row of tubercules, genitalia simple ( Fig. 16 ), relatively short and broad.

Remarks. Gorham (1890) identified specimens from Panama as this species, based on Gerstaecker’s description. We studied material from several South American countries (FSCA). Females were indistinguishable from those of S. ovalis , or the red specimens of S. panamanus , except by association with a male.

Figures

Figs. 8–18. Stenotarsus spp.: 8–10) Dorsal habitus: 8) Stenotarsus cuprivestis; 9) S. panamanus; 10) S. subtilis. 11–14) Ventral view of male: 11) S. globosus; 12) S. obtusus; 13) S. ovalis; 14) S. subtilis. 15–18) Aedeagus, ventral and lateral views: 15) S. panamanus; 16) S. obtusus; 17) S. ovalis; 18) S. subtilis. Scale line = 1 mm.