Orphinus (Orphinus) geiseri Háva et Matsumoto, 2021

Háva, J. & Matsumoto, K., 2021, Description of a new species of Orphinus Motschulsky, 1858 (Coleoptera: Dermestidae: Megatominae) from Ivory Coast, Far Eastern Entomologist 425, pp. 21-24 : 22-23

Orphinus (Orphinus) geiseri Háva et Matsumoto , sp. n.

http://zoobank.org/NomenclaturalActs/ 4798CBD3-4434-44EA-905F-33608DE1A5E9

Figs 1–5

TYPE MATERIAL. Holotype – male, deposited at BMNH: “ Ivory Coast, 801m, Mt

Nimba camp, Closed forest, 07°35'07.7"N, 08°25'08.6"W, 28.IV–8.V 2016, // General collecting, Aristophanous,M., Geiser,M., Moretto,P., leg., BMNH (E) 2016–109, TripRef: CI-

003 ( ANHRT 17) // NHMUK 13800094”. Additional label on red paper added: “ Orphinus

(Orphinus) geiseri sp. nov. Háva & Matsumoto det. 2020, HOLOTYPE ♂ ”.

DESCRIPTION. Male. Body: Oval, dorsum convex. BL: 2.10 mm, EL: 1.49 mm, EW:

1.31 mm, PL: 0.52 mm, PW: 1.14 mm. Colour: dorsal side brown; brown, tibia light brown,

tarsal claws light brown.

Body dark brown on dorsal surfaces ( Fig. 1 ), dark brown on ventral surfaces; small and oval ( Fig. 2 ). Head finely punctate, with short, recumbent, light brown setation. Palpi brown;

setation on mentum denser. Eye very large, with brown microsetae. Ocellus on front present.

Antennae light brown with brown setae, with 11 antennomeres, antennal club consist with two antennomeres, terminal antennomere large, circular ( Fig. 4 ). Antennal fossa circular.

Pronotum on the disc punctate like head, relatively consistent density of punctures, with relatively long, recumbent, yellowish-brown setation. Scutellum subtriangular, anterior end concave, without setation. Elytra finely punctate, with relatively long, recumbent, yellowishbrown setation; cuticle dark brown throughout ( Fig. 1 ). Legs brown, with light brown setation.

Mesosternum coarsely punctate laterally, otherwise finely punctate, covered with light brown,

short, recumbent setation ( Fig. 2 ). Abdominal visible ventrites finely punctate, with relatively long, recumbent, light brown setation ( Fig. 3 ).

Genitalia ( Fig. 5 ). Parameres: longer than median lobe, width relatively constant from base to anterior 1/3, narrowing and curved towards middle from anterior 1/3 to apical end,

apex pointed. Median lobe: widest at base, constant width near base towards apex, apical end slightly rounded. Phallobase: nearly symmetrical, trapezial.

Female. Unknown.

DISTRIBUTION. West Africa: the Republic of Côte d'Ivoire.

DIFFERENTIAL DIAGNOSIS. The new species belongs to the nominotypical subgenus due to the structure of the terminal antennomere; from other known Orphinus species, it differs by its characteristic elytral colour; from other species known from Côte d'Ivoire it differs by the characters given in the key below.

ETYMOLOGY. The epithet is a patronym honouring Michael Geiser (BMNH) who collected this species.

view; 3 – abdomen; 4 – right antennae; 5 – genitalia, ventral view.

Figures

Figs 1–5. Orphinus geiseri sp. n., male. 1 – habitus, dorsal view; 2 – the same, ventral