Troglopini Mulsant & Rey, 1867

Tshernyshev, Sergei E., 2022, Soft-winged flower beetles (Coleoptera: Malachiidae) of the United Arab Emirates, European Journal of Taxonomy 817, pp. 58-77 : 74

Key to the genera of the tribe Troglopini Mulsant & Rey, 1867 occurring in the Arabian Peninsula

1. Anterior tarsi in male 4-segmented, male head depressed or strongly emarginate; length 2.0– 2.6 mm ......................................................................................................... Troglops Erichson, 1840

– Anterior tarsi in male 5-segmented ................................................................................................... 2

2. Male head deeply emarginate at the middle and sculptured; length 2.0– 2.5 mm ............................... ............................................................................................................ Cephaloncus Westwood, 1863

– Male head slightly depressed or carinate below eyes ....................................................................... 3

3. Anterior tarsi in male with a comb above the 2 nd segment, antennae reaching elytral apices, pronotum not narrowed or depressed at base; length 1.6–1.9 mm ................................ Attalusinus Leng, 1918

– Anterior tarsi in male simple, lacking a comb above the 2 nd segment .............................................. 4

4. Antennae not extending over the middle of the elytra, pronotum transverse, not narrowed or depressed at base; length 2.3–2.5 mm ............................................... Troglomorphus Wittmer, 1996

– Antennae extending over the elytra, pronotum longitudinal, narrowed and strongly depressed at base; length 1.3 mm ..................................................................................... Arabotroglops gen. nov.