Haroldiellus, Gordon and Skelley, 2007

Skelley, Paul E. & Keller, Oliver, 2022, A third species of Haroldiellus Gordon and Skelley, 2007 from Mexico and Central America (Coleoptera: Scarabaeidae: Aphodiinae: Aphodiini), Insecta Mundi 2022 (916), pp. 1-11 : 2

Key to species of Haroldiellus

1. Protibial dorsal face with punctures in both sexes ( Fig. 4 ); male median frontal tubercle narrow, prominently conical ( Fig. 6 ); body brown, elytra with dark striae and paler intervals on disc, otherwise no discernible color pattern ( Fig. 1 ); southern US to Colombia................. H. sallei (Harold)

— Protibial dorsal face lacking punctures in both sexes ( Fig. 5 ); male median frontal tubercle transversely widened ( Fig. 7, 9 ); body dark brown, often with color pattern on elytra ( Fig. 2–3 )............ 2

2. Elytral striae weakly impressed, intervals weakly convex; elytra with dark striae and pale intervals on disc, rarely intervals dark ( Fig. 2 ); male median frontal tubercle transversely widened, not distinctly bifid ( Fig. 7 ); high elevations in southern Mexico...................... H. lansbergei (Harold)

— Elytral striae deeply impressed, intervals convex; elytra with dark striae on disc, intervals pale with undulating diagonal black marking ( Fig. 3 ); male median frontal tubercle transversely widened and distinctly bifid ( Fig. 9 ); high elevations in Mexico, Guatemala, Costa Rica, and Panama....................................................... H. woodruffi Skelley and Keller , new species

Figures

Figures 1–5. Haroldiellus species. 1) H. sallei dorsal habitus. 2) H. lansbergei dorsal habitus. 3) H. woodruffi, holotype, dorsal habitus. 4) H. sallei protibia dorsal surface with punctures. 5) H. woodruffi protibia dorsal surface without punctures. Scale line = 0.5 mm.

Figures 6–9. Heads of Haroldiellus species. 6) H. sallei. 7) H. lansbergei. 8) H. woodruffi female allotype. 9) H. woodruffi male holotype. Scale line = 0.5 mm (all figures).