Adoretus duvivieri, 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 duvivieri sp. nov.

(Figs 42­ 43, 81)

TYPE MATERIAL EXAMINED: Holotype ♂: [ Zambia ( Western ), 14km W. Kataba, 1090m (S 15°26’53’’ E 23°15’37’’), 29.XI.2010, Leg. M. François] ( RBINS).

Paratypes: 1♂, 6♀: idem (2♀: RBINS; 3♀: PCMF; 1♂, 1♀: PCPL) ; 1♂: [ Zambia: Western Pr. , 3km N.W. Kandunda, 1100m (14°50’19’’S / 24°39’23’’E), 27.XI.2010, Zambezian Cryptosepalum dry forest, light trap, F. Génier, 2010­ 24] ( RBINS) ; 2♂, 1♀: idem ( FGIC) ; 1♂: [ Zambia: Western Pr. , 3km N.W. Kandunda, 1100m (14°50’19’’S / 24°39’23’’E), 26.XI.2010, Zambezian Cryptosepalum , dry forest, light trap, F. Génier, 2010­ 20] ( FGIC) ; 4♂, 4♀: [ Zambia: Western Pr. , 3.8km E. Namushakende, 1100m, (15°26’54’’S / 23°15’37’’E), 29.XI.2010, Zambezian Cryptosephalum dry forest, light trap, F. Génier, 2010­ 26] ( FGIC) ; 3♂, 3♀: idem ( RBINS) ; 1♂: [ Zambia ( Western ), 4km N.W. Kandunda, 1135m (S 14°50’34’’E 024°39’00’’), 27.XI.2010, Leg. M. François] ( PCMF) ; 2♀: [ Zambia ( Western ), 3km N.W. Kandunda, 1120m (S 14°50’19’’E /024°39’23’’), 27.XI.2010, Leg. M. François] ( PCMF) ; 1♂: [ Zambia N.W., 150km S of Mwinilunga , 02.XI.2008, I.G.31.208, Leg. M. Snizek] ( RBINS) .

DESCRIPTION.

♂: length: 12.5 – 13 mm, breadth: 6 – 6.5 mm; ratio LB/lB (n = 13): 1.68 (1.65 – 1.74).

Laterally slightly convex, rather elongate, slightly bent, broader before elytral declivity; entirely reddishbrown, tarsi blackish brown.

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

Antennae 10­ segmented with club longer than funicle.

Pronotum rectangular, broader than long; ratio LP/lP (n = 13): 0.46 (0.44 – 0.49), sides regularly rounded from base to apex, with all margins carinate, anterior angles projecting and reaching posterior margin of eyes; strongly punctate.

Scutellum subtriangular, punctate.

Elytra longer than broad; ratio LE/lE (n = 13): 1.35 (1.30 – 1.37); epipleura complete; costae slightly elevated; intervals strongly punctate.

Humeral and apical calli slightly marked.

Pygidium laterally rounded, reflexed and slightly projecting postero­ventrally, and not surpassing apex of elytra.

Abdomen concave; short triangular process at base of prosternum.

Protibia tridentate, pro­ and mesotarsal larger claw cleft; metatarsus with larger claw twice longer than other claw; metacoxae prolongated by long, pointed process.

Dorsum covered with short, dense, white, decumbent scales; lines of long separated erected yellowish setae on elytra, progressively longer from disc to lateral margin of elytra; margins from pronotum to elytral declivity, and disc of pygidium with very long erected yellowish setae; ventrum covered with short, dense, white, decumbent scales; erected yellowish setae on sternites.

Aedeagus: parameres triangular and elongate with apex incised, laterally slightly sinuate in dorsal view; sinuate to the base, apex slightly curved ventrally in lateral view.

♀: length: 12.5 – 14 mm, breadth: 6.5 – 7 mm.

Differs from ♂ by: larger; club of antennae shorter; abdomen convex;metacoxae not prolongated by long, pointed process.

DERIVATIO NOMINIS. Friendly dedicated to the naturalist and Conservator of Natural Reserve of Vogenée, Jean­Pierre Duvivier (Walcourt, Belgique).

COMMENTS.

Comments are given under Adoretus nubilus Benderitter, 1927