| Description: |
Derelomus nigrovariegatus Hustache, 1936 Fig. 17 Derelomus nigrovariegatus Hustache, 1936: 484. Diagnosis This species belongs to the D. nigrovariegatus group, characterised by the combination of a glabrous lateral carina on the pronotum, the large body length (generally beyond 3 mm) and the prosternum at least partly dark brown. Within this species group, it can be distinguished by the moderately convex eyes in dorsal view, slightly exceeding the lateral curve of the head capsule (Fig. 17A), while they are distinctly convex in other species. Material examined Lectotype (here designated) ETHIOPIA • ♀; “Type [red label]” “TYPE [red label]” “ Abyssinia; Mt. Chillálo,; Forest.[7°54′25″ N, 39°13′52″ E]; circa 8,500ft.; 24.xi.1926; Dr. H. Scott ” “Brit. Mus.; 1927-127” “specimen figured” “♂” “Box 19” “ Derelomus; nigrovariegatus; m.; Hustache det.” “Lectotype ♀; Derelomus; nigrovariegatus; Hustache, 1936; J. Haran des. 2025”; NHMUK. Paralectotypes ETHIOPIA • 1 ♀; Chilalo Mountain; 7°54′25″ N, 39°13′52″ E; 24 Nov. 1926; H. Scott coll.; NHMUK • 1 ♀; Djem-Djem forest [Guinchi]; 9°03′00″ N, 38°12′00″ E; 22 Sep. 1926; H. Scott coll.; “var. enfumée ” [brown variety]; NHMUK. Redescription (♀) MEASUREMENTS. Body length 4.5 mm. COLOR. Body integument dark brown, scape and base of funicle, central area of elytra and humeral angles pale brown; dorsum with minute downcurved whitish setae, contiguous or subcontiguous, forming 1–3 rows on interstriae. HEAD. Rostrum longer than pronotum in lateral view (1.2 ×), moderately and regularly downcurved; in dorsal view about 5× as long as wide, integument densely punctate, forming 5 longitudinal carinae from eyes to antennal insertion, median carina more raised than others and split in two before antennal insertion; covered with minute recumbent and non-contiguous whitish setae oriented transversally; antennae inserted near apical ¼ of length; head capsule coarsely punctate in dorsal view; forehead with suberect setae longer and more condensed near eyes; eyes moderately convex, slightly ... |