Dere legalovi, Barševskis & Saulīte, 2020

Barševskis, Arvīds & Saulīte, Daiga, 2020, Five new species of the genus Dere Fahraeus, 1872 (Coleoptera: Cerambycidae) from the Philippines, Baltic Journal of Coleopterology 20 (2), pp. 211-219 : 214-215

Dere legalovi sp. nov.

( Fig. 4 )

Type material. HOLOTYPUS, male (right elytron near apex damaged): Philippines, E Visayas / Samar isl. , Marabot, 01. 2015 / local collector leg. [printed white label] . Ex Prof. A.Barševskis coll. [printed white label]. HOLOTYPUS: / Dere / legalovi sp. nov. / A.Barševskis, D. Saulīte descr. 2020 [red handwritten label] ( DUBC) .

General distribution: Samar Isl., Philippines.

Description. Body black, elongated, narrow, yellow-brown, with black head and apical portion of elytra, with coarse, dense punctation, without metallic reflection. Length: 7.8 mm, maximal width: 1.9 mm; length/width ratio: 4.1.

Head flattened, with square, frontal part and bilobate apical margin. Dorsal surface of head with coarse punctation, with short impressed longitudinal line between extended antennal bases. Labrum brown, slightly pubescent, shiny. Clypeus dark-brown, transverse, shiny, with long setae on apical margin. Mandibles brown, darker apically, sharp, massive, wide, shiny, relatively short, with sparse, silver-grey short pubescence on lateral portion. Eyes convex, bilobate. Cheeks with dense, short, silver-grey pubescence. Antennae slender. Male antennae shorter than body, not reaching apex of elytra. Antennomeres covered with coarse punctation and fine, sparse pubescence; antennomeres 1–5 thickened apically, black.

Pronotum yellow-red, cylindrical, elongated, slightly narrowed in apical and basal portions. Surface with very dense and coarse punctation and short wrinkles.

Scutellum black, small, with slightly rounded apex. Pars stridens almost completely covered with pronotum.

Elytra almost parallel-sided, flattened, yellow-red, darkened in apical portion, from middle slightly widened apically, with indistinctly raised shoulders hump. Elytra shiny, without metallic reflection. Punctation of elytra very dense, not arranged in longitudinal rows. Apical margin of elytra with two sharp extensions: one smaller on apical edge near suture and one larger latero-apical extension.

Ventral surface of body covered with dense silver-grey pubescence. Legs black, covered with very fine pubescence, inner margin of tibia with short silver-grey pubescence.

Female unknown.

Differential diagnosis. Regarding the shape of the body, the new species is similar to D. coloripennis Vives, 2015 , but can be distinguished from it by different coloration of elytra and legs. Elytra of D. legalovi sp.nov. are yellow-red, with darkened apical portion and legs are unicolour, black, while dark elytra of D. coloripennis having a well-defined longitudinal yellow spot with expanded apical part, and legs (except forelegs) are bicolour, with yellow basal portion of femur.

Etymology. This species is named after my colleague Dr. Andrei Legalov (Novosibirsk, Russia) in appreciation of cooperation, and in gratitude for his contributions to the knowledge of Atellabidae and Curculionidae of the world.

Figures

Fig. 4. Habitus of Dere legalovi sp. nov. (holotype)