Cerambycidae of the World

Xylotrechus (Kostiniclytus) alakolensis Karpiński & Szczepański, 2018

Xylotrechus (Kostiniclytus) alakolensis Karpiński & Szczepański, 2018
Xylotrechus (Kostiniclytus) alakolensis Karpiński & Szczepański, 2018 Holotype
Male imago
KAZAKHSTAN, East Kazakhstan Region [Шығыс Қазақстан облысы]: 15 km NW of Taskesken [Таскескен] (47°18'N, 80°36'E), 15.06.2017, 627 m.a.s.l.
Copyright © Lech Karpinski
Countries and regions
Body length: 12.1 mm, width (at humeri): 3.7 mm. Integument of whole body brown; legs and antennae lighter, slightly reddish; head and prothorax dark-brown; elytra light-brown. Pubescence of whole body whitish, recumbent and rather sparse; more irregular on head and pronotum; central part of pronotum with shorter hairs or completely hairless; elytra with denser pubescence in central part, especially below scutellum; hairs form distinct median transverse and posterior oblique stripe below and barely discernible rudimentary stripes above hind femora; humeri almost bare; pubescence on propygidium uniform, very dense, almost completely concealing cuticle; ventral side with moderately dense white recumbent pubescence (longer on sternites) and scattered erect setae. Head with vertically elongated frons; frontal carina distinct, “V”-shaped; distance between antennal insertions slightly shorter than between ventral eye lobes; eyes relatively small, mounted more obliquely than parallel; antennae short, 3rd antennal segment shorter than 1st and about twice as short as 1st and 2nd combined; pubescence of antennae present on all joints, irregular, disappearing towards the ends with single longer setae on segments I–V. Prothorax large, rounded laterally, slightly wider (3.7 mm) than longer (3.1 mm) (ratio 0.84), about 2.5 times shorter and of the same width as elytra at humeri (3.7 mm) with dense irregular punctuation and pair of large, distinct, centrally located depressions. Elytra almost parallel-sided, slightly narrowed towards rounded apices, about 2.1 times longer than width at humeri. Last segment of protarsi slightly longer than 2nd and 3rd combined (ratio 1.1); lobes of protarsomere 3 relatively elongate and narrowed towards apex; 1st segment of metatarsi shorter (about 0.15 times) than the remaining segments combined, metatarsomeres 2nd and 3rd combined about 2/3 as long as metatarsomere 1. Pygidium and postpygidium rounded.
The holotype was collected in a steppe habitat with a very rich plant community (roadside vegetation)
Last revision
01 January 2018 13:39 by Lech Karpinski
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