Gauromaia, Pascoe, 1866

Telnov, Dmitry & Ruzzier, Enrico, 2024, A redefinition of Gauromaia Pascoe, 1866 (Coleoptera: Tenebrionidae: Stenochiinae), Zootaxa 5551 (3), pp. 531-555 : 551

Key to species assigned to Gauromaia subgenus Celebesa

1 Body length to maximum width ratio ~ 2.8–2.9; prosternal intercoxal process at posterior extent of procoxal cavity nearly right-angled, step-like shaped in lateral view; elytral striae deep, interstriae convex; elytra elongate, ~ 1.8× as long as combined width.......................................................................... G. (C.) striata comb. nov.

– Body length to maximum width ratio 2.6 or less; posterior margin of prosternal intercoxal process at posterior extent of procoxal cavity either declivous, rarely step-like in lateral view; elytral striae flat or moderately deep, interstriae flat or slightly convex; elytra less elongate, ≤1.6× as long as combined width........................................................ 2

2 Mentum each side to median portion with deep posterolateral pit, pit anterior margin raised in ventral aspect......................................................................................... G. (C.) latipennis comb. nov.

– Mentum posterolaterally without deep pits, with or without shallow ventral impressions............................. 3

3 Prosternal intercoxal process strongly humped in ventral aspect at posterior extent of procoxa; lateral portions of mentum with two rounded tubercles.......................................................... G. (C.) impressa comb. nov.

– Prosternal intercoxal process between procoxae flattened or evenly arched in ventral aspect; mentum without obvious rounded tubercles............................................................................................ 4

4 Elytral interstriae slightly convex; elytral striae comparatively deeper cut; prosternal intercoxal process constricted apically in ventral, declivous in lateral view.................................................. G. (C.) angustior comb. nov.

– Elytral interstriae entirely flat; elytral striae delicately cut, shallow; prosternal intercoxal process subparallel, broadly rounded at apically in ventral, nearly right-angled in lateral view................................ G. (C.) elongata comb. nov.