Adoretus matejiceki, Limbourg, 2014

Limbourg, Pol, 2014, Contribution to the knowledge of Afrotropical Rutelinae III (Coleoptera, Scarabaeoidea, Melolonthidae), Belgian Journal of Entomology 17, pp. 1-33 : 1-33

Adoretus matejiceki sp. nov.

(Figs 32­ 33, 74­ 75)

TYPE MATERIAL EXAMINED: Holotype ♂: [ Kenya, C., 40km of Mwingi , Nguni env., 27­ 28.XI.1999] ( RBINS).

DESCRIPTION.

♂: length: 9 mm, breadth: 4 mm; ratio LB/lB (n = 1): 1.73.

Laterally slightly convex, relatively elongate, dorsally flat, broader in middle of elytra; dorsum brownish; lateral sides of elytra with irregularly glabrous shining black patches; legs brownish except tibiae dorsally blackish; underside blackish brown.

Head (eye to eye) broad; clypeus rounded, covered with tubercles, with margin totally reflexed.

Antennae 10­ segmented, with club longer than funicle.

Pronotum rectangular, broader than long; ratio LP/lP (n = 1): 0.52; sides regularly rounded from base to apex, with all margins carinate; anterior angles not projecting and reaching posterior margin of eyes; strongly punctate.

Apex of scutellum rounded, punctate.

Elytra longer than broad; ratio LE/lE (n = 1): 1.36; epipleura complete; costae slightly elevated; intervals strongly punctate.

Humeral and apical calli marked.

Pygidium laterally rounded, carinate, projecting postero­ventrally, and surpassing apex of elytra.

Abdomen concave; short process at base of prosternum rounded.

Protibia tridentate, pro­and mesotarsal larger claw cleft; metatarsus with larger claw twice longer than outer one.

Dorsum totally covered with short, white, decumbent scales with some long isolated erected white setae on sides and lateral margin of elytra; short and not much visible tuft of white scales on top of humeral calli; ventrum covered with longer white, decumbent setae; long white erected setae on disc of pygidium; short decumbent white scales with a few erected white and yellowish setae on legs.

Aedeagus: parameres dorsally elongate and pointed, slightly furrowed at apex; laterally sinuate with curved thickening at apex.

♀: unknown.

DERIVATIO NOMINIS. Dedicated to Jan Matejicek (Hradec Kralové, Czech Republic) who sent me the specimen for study.

COMMENTS. Adoretus matejiceki distinguished by:

is extremely similar to A. francoisi Limbourg, 2012 (Fig. 76) but can be

A. matejiceki A. francoisi

Aedeagus: parameres dorsally elongate and pointed, Aedeagus: apex of parameres interno­sinuate in slightly furrowed at apex; laterally sinuate with a dorsal view; apex laterally sinuate ( Figs 34­ 35 ).

curved thickening at apex (Figs 32­ 33).

Apex of elytra not verniculate, short and slightly Apex of elytra verniculate, erected tufts of white visible tuft of white scales on top of humeral calli scales to declivity of elytra and on top of humeral ( Fig. 75 ). calli (Fig. 77).

Figures

Figs 34­ 35. Adoretus francoisiholotype. (34) aedeagus, lateral view; (35) parameres, dorsal view. Figs 36­ 37. Adoretus constantiholotype. (36) aedeagus, lateral view; (37) parameres, dorsal view. Figs 38­ 39. Adoretus rojkoffiholotype. (38) aedeagus, lateral view; (39) parameres, dorsal view.

Figs 74­ 75. Adoretus matejicekiholotype. (74) habitus, dorsal view; (75) apex of elytra. Figs 76­ 77. Adoretus francoisiholotype. (76) habitus, dorsal view; (77) apex of elytra.