Adoretus paulyi, Limbourg, 2016

Limbourg, Pol, 2016, Contribution to the knowledge of Afrotropical Rutelinae IV (Coleoptera: Scarabaeoidea: Melolonthidae), Belgian Journal of Entomology 38, pp. 1-42 : 1-42

Adoretus paulyi sp. nov.

( Figs 45-46 , 49-50)

TYPE MATERIAL. Holotype ♂: [Coll. I.R.Sc.N.B., KENYA Coast, Garissa, N. of Hola, 25.IV.2008, I.G. 31.208, Lgt. Snizek] ( RBINS).

Paratypes: 12♂: idem ( RBINS) ; 3♂: [Coll. I.R.Sc. N.B., KENYA N.E., S. of Garissa, Bura env., 04.XII.2010, Achat M. Snizek, I.G.: 31.867] ( RBINS) ; 17♂: [Coll. I.R.Sc. N.B., KENYA S.E., Tana Riv. Prov., 14km N. of Garsen , 09.IV.2004, Lgt. Snizek] ( RBINS) ; 4♂: [ KENYA S.E., Tana Riv. Prov., 14km N. of Garsen , 09.IV.2004, Lgt. Snizek] ( PCPL) ; 2♂: [Coll. I.R.Sc. N.B., KENYA E., Sosoma, 202km E. Thika , 03.XII.2010, Leg. M. Snizek, I.G.: 31.867] ( RBINS) .

DESCRIPTION

Male

Measurements and ratios ♂ (n = 14): LB: 9 – 10.5 mm, lB: 4.5 – 5.5 mm; LB/lB: 1.69 (1.67 – 1.81); LP/lP: 0.51 (0.47 – 0.54); LE/lE: 1.33 (1.27 – 1.38).

Body: laterally slightly convex, relatively elongate, slightly bent, broader in middle of elytra; abdomen concave; process at base of prosternum short and rounded; entirely pale brown, except margins of clypeus, canthus, vertex, frons and tarsi blackish-brown; slightly shining.

Head: broad, clypeus rounded, entirely reflexed, clypeus and vertex totally covered with tubercles; frons unpunctuated; antennae 10-segmented, with club longer than flagellum.

Thorax: pronotum rectangular, broader than long; sides uniformly rounded from base to apex, with all margins carinate; anterior angle slightly projecting and reaching posterior margin of eyes; transversely striated; scutellum triangular with rounded points.

Elytra: longer than broad; epipleura complete; costae slightly elevated, intervals with close crescent shaped points, striae formed by separated crescent shaped points; humeral and apical calli slightly marked.

Pygidium: triangular with apex rounded; carinate along anal plate; not projecting postero-ventrally and not surpassing apex of elytra; slightly vermiculate.

Legs: protibiae tridentate, pro-and mesotarsal larger claw cleft; metatarsus with larger claw 1/3 longer than smaller and uncleft.

Hairs: upper and undersides densely covered with short, decumbent white scales;

elytra with lines of small glabrous rounded zones and isolated tuft of close short decumbent white scales; long, separated, erected yellowish-brown setae on all margins from canthus to apex of elytra, sparse on underside; long erected white squamous setae on disc of pygidium, apex glabrous.

Aedeagus: in lateral view, parameres elongate, ventrally and dorsally straight; in dorsal view, parameres parallel in basal third, sinuate until apex; apex concave.

Female. Unknown.

DERIVATIO NOMINIS. Dedicated to my colleague Alain Pauly, specialist of Hymenoptera: Apoidea.

DISTRIBUTION. Known from Kenya.

BIOLOGY. The species was collected in the months April and December.

DIAGNOSIS. Adoretus paulyi sp. nov. is extremely similar to A. simulans Péringuey, 1902 but can be distinguished as follows:

Figures

Figs 45-46. Adoretus paulyi holotype habitus (10.5mm): (45), dorsal view; (46), lateral view. Figs 47-48. Adoretus simulans habitus (10.5mm): (47), dorsal view; (48), lateral view. Figs 49-50. Adoretus paulyi holotype: (49) aedeagus, lateral view; (50) parameres, dorsal view. Figs 51-52. Adoretus simulans: (51) aedeagus, lateral view; (52) parameres, dorsal view.