Atrichocera palawana, Barševskis & Medina, 2023

Barševskis, Arvīds & Medina, Milton Norman, 2023, New species of the genus Atrichocera Aurivillius, 1911 (Coleoptera: Cerambycidae) from Palawan, Baltic Journal of Coleopterology 23 (1), pp. 105-108 : 106-107

Atrichocera palawana sp. nov.

( Fig. 1 )

Type specimen: Holotype: Female. / Philippines: Palawan Isl., / Roxas, 01.2023, / local collector leg./ [handwritten]; // HOLOTYPUS:/ Atrichocera / palawana sp. nov. / A.Barševskis, / M.N. Medina det. 2023 [red label, handwritten] ( DUBC).

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Description. Body elongated, brown. Elytra with a rough surface and pushed out sharp ends. Body lenght 11.8 mm, maximal width: 4.4 mm.

Head dark-brown, transverse, flatt, deeply impressed between antennal bases, with bilobate convex eyes. Surface of head with sparse punctures and very dense yellow pubescence, between eyes, with thin elongated middle line, which continued to clypeus. Frontal portion of head with fine and dense yellow pubescence. Cheeks covered with dense yellow pubescence and sparse punctures. Labrum dark - brown, cowered with sparse pubescence. Clypeus dark-brown, transverse, shiny. Mandibles black, with sharp apex, massive, wide, shiny, lateral sides with pubescence. Antennae brown, relatively short, longer than apex of elytra, covered with dense yellow pubescence, between with black punctures. Basal antennomere cylindric, thicker than others. Antennomeres 3-9 slightly darkened apically, but antennomeres10-11- unicolor brown.

Pronotum laterally with rough surface, covered with dense brown pubescence, yellow-brown elongaate middle line and two lateral yellow-brown bands of dense pubescence. Pronotum neck-shaped narrowed in apical and basal portions. Pronotal disc between pubescence with coarse dark punctures.

rised lines of yellow and black pubescence. Punctation of elytra very dense, but lines of dark dots are visible. The humeral ridges are weakly expressed, but the portion of the elytra along the suture behind the scutellum is elevated. Suturae especially from the middle to the apex very distinct, raised.

Ventro-lateral surface of body covered with very densy yellow-brown pubescence. Legs relatively short, massive, covered with very dense yellow-brown pubescence, except femora of the hind legs, which are completely smooth on the inside, shining and without pubescence.

Differential diagnosis. The new species differs from Borneo's Atrichocera moultoni Aurivillius, 1911 by a different pattern on the elytra: there is no black longitudinal band behind the scutellum, along the suturae extending to the middle and then dividing into two obliquely widened bands and one detached oval spot before the apex.

Etymology. This species is named after the Palawan island, where it occurs [Palawan - palawanus].

General distribution: Philippines: Palawan Island.

Scutellum apically ronded, with yellow-brown pubescence. Pars stridens not visible because it is under the posterior edge of the pronotum.

Elytra with a rough surface and pushed out sharp ends. Dorsal surface of elytra covered with brown pubescence and some irregular

Figures

Fig. 1. Atrichocera palawana sp. nov. (holotype)