Phradonoma beskalensis Khachikov, Háva et Poushkova, 2022

Khachikov, E. A., Háva, J. & Poushkova, S. V., 2022, New records of the skin beetles (Coleoptera: Dermestidae) from Russia, Central Asia and Caucasus, with description of a new species from Kazakhstan, Far Eastern Entomologist 448, pp. 1-10 : 5-6

Phradonoma beskalensis Khachikov, Háva et Poushkova , sp. n.

http://zoobank.org/NomenclaturalActs/ 5EC87AAA-82E9-4F8A-8FA1-2B92E35CCC9B

Figs 5, 6, 11 , 19, 20

TYPE MATERIAL. Holotype – ♂, Kazakhstan: Guryev Region [= Atyrau

Region], Kois tract, Beskala vill. [=Madeniet vill.], 05.VII 1980, leg. E.A. Khachikov ( ZIN).

DESCRIPTION. Body length is 2.1 mm, the top is dark, almost matte, covered with erect reddish setae. Head is transverse, with coarse and rare punctation, with long more or less decumbent yellow-brown setae, maxillary palpi darkish brown,

eyes large with microsetae. Forehead with ocellus. Antennae 11-segmented with a

5-antennomered club ( Figs 5, 6 ), 11th–9th antennomeres larger than 8th and 7th;

the 11th antennomere is apically smoothly narrowed and rounded; 10th antennomere transverse, slightly widened apically and basally rounded; the 9th antennomere

(main segment of the club) is transverse, in the form of inverted parallelepiped; the

5th to 8th antennomeres are strongly transverse, slightly rounded; the 1st and 2nd

antennomeres are slightly transverse and apically widened. The first antennomere is brown, the club very darkish brown and all other segments are light brown. Pronotum is entirely dark brown, shiny, sparsely and not very coarsely punctate, with yellowbrown setae ( Fig. 19 ), apically smoothly narrowed, almost as wide as elytra. Basal margin of pronotum is in the form of an obtuse angle, the apex of which is at its middle. The scutellum is small, dark brown, triangular, without setation or punctu-

res. Elytra dark brown anteriorly, light brown posteriorly, coarsely and sparsely punctate, sparsely covered by yellow-brown setae. Elytra are also gradually tapering towards the posterior margin of the body, and more than 2.5 times as long as the pronotum. The underside of the specimen is finely and more densely punctate than the elytra. Tibiae and tarsi are brown, the femurs darkened. Male genitalia as in Fig. 11 .

DIAGNOSIS. The new species is similar to Phradonoma villosulum but reliably different in the shape of the antennomeres. In P. villosulum the 9th and 10th antennomeres are much more transverse and widened, while the 8th–6th antennomeres are contrastingly narrower than in P. beskalensis sp. n. There are also differences in the structure of the male genitalia, especially in parameres ( Fig. 11 ), which are wider in the distal part. P. beskalensis also differs from other species of the “ villosulum ”

group of the genus Phradonoma in the structure of antennomeres and male genitalia

(Háva, 2006).

DISTRIBUTION. Kazakhstan.

ETYMOLOGY. A name of new species derived from Beskala village, the envi-

rons of which being the type locality of this species.

20 – VIII tergite; 21 – Phradonoma villosulum, VIII tergite.

Figures

Figs 1–12. Antennae and male genitalia of Phradonoma spp. 1–3, 7, 9, 10 – Ph. villosulum:

Figs 19–21. Phradonoma spp. 19, 20 – Ph. beskalensis sp. n.: 19 – dorsal aspect of body;