Gastrocentrum laterimaculatum Gerstmeier, 2005

Yang, Ganyan, Yang, Xingke & Shi, Hongliang, 2020, Taxonomy and phylogeny of the genus Gastrocentrum Gorham (Coleoptera, Cleridae, Tillinae), with the description of five new species, ZooKeys 979, pp. 99-132 : 99

Gastrocentrum laterimaculatum Gerstmeier, 2005 Figure 25

Gastrocentrum laterimaculatum Gerstmeier, 2005: 56 (type locality: Malaysia, Cameron Highlands).

Specimens examined.

Malaysia: H. C. Siebers, M. O. Borneo Exp. Long Hoet, 3.VIII.1925 (ZMAN, 1 ex.); Borneo, Sabah, Keningau district, Jungle Girl Camp., 5.4430°N, 116.4512°E, 1182m, Shi H. L. & Liu Y. lgt. light trap, 2016. V. 1. N (FBFU, 1 male); Malaysia, N. Borneo, Sabah, Keningau distr., Trus Madi Mt., h = 1160 m, leg. J. Chew, 20.VI.2011 (RGCM, 1 ex.).

Diagnosis.

This species is the only one in this genus that has elytral pattern and can be separated from other species without difficulty. Its elytra is yellow-brown, with a pair of large semicircular dark spots in lateral sides which is extended to the lower sides of humeri; elytral asetiferous punctations larger than other species, with punctation diameter greater than interspace between 2nd-3rdPAP rows; antennae broadly extended laterally from 8th antennomere onwards.

Supplementary description.

Elytral wedge-shaped protuberance present on inner surface; elytral asetiferous punctations somewhat irregular, arranged in more than ten rows, PAP in ten rows, AAP on interspaces between 1st-2nd, 3rd-4th, and 5th-6thPAP rows, AAP setting in two rows on each interspace; AAP almost same size as PAP, which is more sizable than punctations in other species, with punctation diameter greater than interspace between 2nd-3rdPAP rows; both PAP and AAP beginning to decrease in size postmedially to apical third, and completely vanished at apical fifth; elytral inner surface with a wedge-shaped protuberance at lateral middle; tibiae spur formula 0-2-2 (other species in this genus 1-2-2); protibia with a blunt tooth at outer apex; 1st-2nd abdominal ventrites dark brown, 3rd-5th yellow, 6th light yellow to transparent; first abdominal ventrite strongly ridged behind coxae, intercoxal process raised, triangular, slightly longer than broad, grooved longitudinally.

Distribution.

Malaysia (Peninsular Malaysia, Sabah).

Figures

Figure 25. Geographical distribution map of the genus Gastrocentrum.