Dendrochilus strombosiopsis Schedl, 1957

Jordal, Bjarte H., 2021, Revision of Dendrochilus (Coleoptera, Scolytinae) - with description of two new species from Tanzania, Zootaxa 4969 (3), pp. 587-593 : 589-590

Dendrochilus strombosiopsis Schedl, 1957

( Figs 1–3 )

Material examined. Holotype female: Congo Belge, Yangambi , 21.VII.1952, Schedl, leg. ( RMCA) . Paratype: same data as holotype ( NHMW) .

Diagnosis (female). Strongly elongated species, 3.0 × as long as wide. Antennal scapus with dorsal setae shorter than antennal club; vestiture on elytra consisting of rows of interstrial spatulate setae, mainly on declivity.

Redescription, female. Length 1.1 mm, 3.0 × as long as wide, colour light brown. Frons convex, vestiture of fine long setae directed inwards; eyes entire, separated above by 2.2 × the width of an eye; antennal scapus longer than wide, slightly triangular towards apex, broader than pedicel, with a broad tuft of scant dorsal setae which are slightly shorter than length of club; funiculus 5-segmented; club flattened, smooth and shiny, about two times as long as broad, sides subparallel or broader on apical half, with fine setae along lateral and apical margin. Pronotum hunchbacked, summit at middle; anterior half with dense, small asperities, surface shiny, without punctures. Elytra parallel-sided for three-quarter of their length, narrowly rounded behind; striae not impressed, punctures obscure; vestiture on and near declivity consisting of erect spatulate setae on each interstria and fine, short, recumbent strial setae. Scutellum flat, flush with elytra. Ventrites. Last abdominal ventrite apically bottleneck-shaped, cylindrical. Vestiture on meso- and metaventrites consisting of scattered long, unifid setae. Legs. Procoxae contiguous. Protibiae narrow, twisted, with three socketed teeth just inside the apical margin, mucro much larger, curved posterolaterally. Metatibiae narrow, parallel-sided, apical margin transverse with three apical socketed teeth.

Male. Not known.

Biology and distribution: Only known from the type locality in the Congo basin. It was collected from an unspecified part of a Strombosiopsis tetrandra tree ( Olacaceae s.l., or Strombosiaceae , s.s.).

Remarks. The type series show some variation in the number of setae on the elytra, with 40–50 setae on declivity and never more than 5–10 setae on disc.

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).