Adoretus rojkoffi, 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

publication ID	https://doi.org/ 10.5281/zenodo.13272910
publication LSID	lsid:zoobank.org:pub:017E46DE-8BE7-444D-9620-D09E37380CBA
persistent identifier	https://treatment.plazi.org/id/EE3A87FE-4007-0860-FD8E-FE90FC052370
treatment provided by	Felipe
scientific name	Adoretus rojkoffi
status	sp. nov.

Treatment

Adoretus rojkoffi View in CoL sp. nov.

(Figs 38 39, 79)

TYPE MATERIAL EXAMINED: Holotype ♂: [Coll. I.R.Sc.N.B., Zambia N.W., 50km E of Mwinilunga , 28.X.2008, I.G.31.208, Leg. M. Snizek] ( RBINS).

Paratypes: 24♂, 117♀: idem ( RBINS; 1♂, 1♀: MNHUB; 1♂, 1♀: MNHN; 1♂, 1♀: NHMB) ; 3♂, 18♀: [Coll. I.R.Sc. N.B., Zambia N.W., 50km E. of Mwinilunga , 28.X.2008, Leg. M. Snizek, I.G.31.411] ( RBINS) ; 1♂: [Coll. I.R.Sc. N.B., Zambia N.W. Kasempa , E. of Mutumbwa, 05.XI.2008, I.G.31.208, Lgt. M. Snizek] ( RBINS) ; 18♀: [Coll. I.R.Sc. N.B., Zambia N.W., 70km N.E. Kapiri , 27.XI.2005, Lgt. M. Snizek, I.G. 31.208] ( RBINS) ; 2♂, 1♀: [Zambia, North west Prov. , Nchila Wildlife reserve, 25 27.XI.2005, Leg. S. Rojkoff & K. Werner] ( PCPL; 1♂: PCSR) ; 1♀: [Zambia, Nkumbi, Central Prov. , 29.XI.2008, Leg. C. Vanderbergh] ( CVDB) ; 1♂: [COLL. MUS. CONGO, Kanlama, 1931, R. Massart] ( MRAC) .

DESCRIPTION.

♂: length: 8 – 9 mm, breadth: 3.5 – 4 mm; ratio LB/lB (n = 12): 1.68 (1.58 – 1.76).

Laterally slightly convex, relatively elongate, dorsally flat, broader before declivity; totally yellowishbrown except apical tooth of protibia black; shining.

Head (eye to eye) broad, clypeus parabolic and excavated, slightly projecting anteroventrally, margin totally reflexed; vertex punctate like frons.

Antennae 10 segmented, with club longer than funicle.

Pronotum rectangular, broader than long; ratio LP/lP (n = 12): 0.47 (0.41 – 0.48); sides regularly rounded from base to apex, with all margins carinate; anterior angles projecting and reaching posterior margin of eyes; punctate like vertex and frons.

Apex of scutellum rounded, punctate like pronotum.

Elytra longer than broad; ratio LE/lE (n = 12): 1.34 (1.27 – 1.39); epipleura complete; costae slightly elevated; intervals strongly punctate.

Humeral and apical calli slightly marked.

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

Abdomen concave; short process at base of prosternum rounded.

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

Dorsum covered with short, white, decumbent scales; long, sparse, white, erected squamous setae on lateral margins from eyes to apex of elytra; ventrum, disc of pygidium and legs covered with long, white, dense erected setae.

Aedeagus: parameres relatively elongate, laterally sinuate, apex incised.

♀: length: 8.5 – 9.5 mm, width: 4 – 5 mm.

Differs from ♂ by: larger size, yellowish colored, club of antennae slightly shorter, abdomen convex.

DERIVATIO NOMINIS. Dedicated to Sébastien Rojkoff (Lyon, France).

COMMENTS.

Comments are given under Adoretus disparilis Péringuey, 1902