Dendrochilus

Jordal, Bjarte H., 2021, Revision of Dendrochilus (Coleoptera, Scolytinae) - with description of two new species from Tanzania, Zootaxa 4969 (3), pp. 587-593 : 589

Key to Dendrochilus species

1. Frons with few tiny setae; antennal scapus not broader than pedicel, with few dorsal setae; anterior margin of pronotum in dorsal view with two small and closely set tubercles; elytral interstriae in posterolateral areas sharply granulated (males)... 2

- Frons with fine setae pointing towards centre; antennal scapus expanding apically, wider than pedicel, with tuft of fine setae along its entire dorsal side; anterior margin of pronotum largely smooth (dorsal view); elytral interstriae in posterolateral areas not granulated (females)................................................................................ 3

2. Eyes separated above by 2.5–2.8 × their width; body length 1.2–1.3 mm ( Tanzania)........ Dendrochilus udzungwae , male

- Eyes separated above by 1.9−2.2 × their width; body length 0.9–1.0 mm ( Tanzania)............ Dendrochilus tener , male

3. Pronotum 1.3 × longer than wide; elytral setae largely confined to posterior half; setae on scapus shorter than club; body length 1.1 mm ( Congo)......................................................... Dendrochilus strombosiopsis , female

- Pronotum as long as wide; elytral setae present from base to apex; setae on scapus longer than club.................... 4

4. Eyes separated above by 2.5–2.8 × their width; apical bottleneck-shaped part of last abdominal ventrite longer than broad ( Fig. 4 ), body length 1.2–1.3 mm ( Tanzania).......................................... Dendrochilus udzungwae , female

- Eyes separated above by 1.9−2.2 × their width; apical bottleneck-shaped part of last abdominal ventrite shorter than broad; body length 1.0– 1.1 mm ( Tanzania).................................................. Dendrochilus tener , female

Figures

FIGURES 1–4. Dorsal, lateral and front views of Dendrochilus strombosiopsis (1–3), and dorsal view of last abdominal ventrite of Dendrochilus udzungwae (4).