Adoretus schuelei, Limbourg, 1844

Limbourg, Pol, 1844, Contribution to the knowledge of Afrotropical Rutelinae VI (Coleoptera, Scarabaeidae, Rutelinae), Belgian Journal of Entomology 80, pp. 1-41 : 1-41

Adoretus schuelei sp. nov.

urn:lsid:zoobank.org:act:9978059E-21C8-4A8D-A8F7-B7F5DCFA4E39

(Figs 64–68)

TYPE MATERIAL. Holotype ♂: [ UGANDA, Isingiro Distr., S. Nshara, lake Mburo N. P. Nshara Gate (0°29’25.31’’S / 31°28.13’E), 06-07.XI.2016, I.G.: 33.584, P. & V. Schüle, G. Werner leg.] ( RBINS).

Paratypes: 1♂: same data as holotype ( RBINS) .

DESCRIPTION:

Male

Measurements ♂: length: 12–12.5 mm, width: 5.5–6 mm.

Body: Laterally slightly convex, elongate, slightly bent, broader in middle of elytra; abdomen concave; perpendicular process at base of prosternum rounded; brown to dark brown, vertex, frons and teeth of protibiae black; slightly shining.

Head: broad; clypeus rounded, entirely reflexed, clypeus and vertex totally covered with tubercles; frons impunctate; antennae with 10 antennomeres, with club longer than funicle.

Thorax: pronotum rectangular, wider than long; sides slightly angular in middle; all margins carinate; anterior angles projecting and reaching posterior margin of eyes; with deep small separated rounded punctures; impressed point on lateral margins; scutellar shield triangular, with small tubercles, apex smooth and glabrous.

Elytra: longer than wide; epipleura complete; primary costae more convex than intervals, secondary striae with close horseshoe-shaped punctures; striae formed by a line of close horseshoe-shaped punctures; humeral and apical calli slightly marked.

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

Venter: upper part of metaventrite with close horseshoe-shaped punctures, sparsely towards median part; 2nd abdominal ventrites to 5 th with horseshoe-shaped punctures; 6 th with imbricate puncture.

Legs: protibiae tridentate, larger claw elongate, 1/3 shorter than last tarsomere, pro-and mesotarsal larger claw cleft; larger claw of metatarsus 1/3 times longer than smaller and uncleft.

Hairs: dorsal side covered with short white, squamous, decumbent setae; long separated erected yellowish setae from lateral margins of pronotum to apex of elytra, on antennae, on canthus; underside covered with short white, squamous, decumbent setae, longer on sides of mesoventrite, median part of mesoventrite glabrous; sparse long decumbent brownish-yellow setae inserted in setigerous punctures, one single on meso and metacoxae, transversal line on abdominal ventrites, close along anal plate; close long decumbent yellowish-brown setae along anterior and posterior margins of prosternum, longer and erected on base of labium; pygidium covered with white squamous setae, short and decumbent along posterior margin, progressively longer and erected from base to disc, apex glabrous; outer sides of protibiae and femora with short, white, squamous, decumbent, setae; inner sides with longer erected and decumbent brownish-yellow setae.

Aedeagus: in lateral view, parameres elongate and slightly curved; in dorsal view, lateral margins of parameres parallel from base to middle part, apex slightly projecting laterally, angularly excavated on apico-internal angle.

14

Female: unknown.

DERIVATIO NOMINIS.

Dedicated to Peter Schüle (Herrneberg, Germany).

DISTRIBUTION. Known from Uganda.

BIOLOGY. The species was collected in November.

DIFFERENTIAL DIAGNOSIS.

Adoretus schuelei sp. nov. is similar to A. similis Benderitter, 1922 but can be distinguished as follows: