Tricheops guillemeti , Evans, Brenda & Ślipiński, Adam, 2016

Evans, Brenda & Ślipiński, Adam, 2016, Review of the genus Tricheops Newman (Coleoptera: Cerambycidae: Cerambycinae) with description of two new species from Western Australia, Zootaxa 4137 (4), pp. 569-577: 573-577

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Tricheops guillemeti

new species

Tricheops guillemeti  new species

( Fig. 3View FIGURE 3)

Etymology. This species name is derived from the French noun guillemet (angle quotes), referring to the guillemet shaped markings on the pronotum of the species.

Diagnosis. Tricheops guillemeti  can be distinguished from other members of this genus by its golden colouring with dark brown markings, two markings on lateral sides of pronotum and single dark brown marking on the posterior part of the pronotum ( Fig. 3View FIGURE 3 A). T. guillemeti  can be further distinguished by a lateral pronotum length 0.73 times height and the metafemur length 3.5 –4.0 times width ( Fig. 3View FIGURE 3 B, D –E).

Description. Length. 14–15 mm and length 5.0 to 5.5 times width. Dorsal and ventral surface bearing short recumbent setae (Fig. A –B). Head. Not constricted behind eyes and frontoclypeal suture weakly impressed ( Fig. 3View FIGURE 3 A, C). Gland dispenser bears a single, moderately long, seta ( Fig. 3View FIGURE 3 C –D). Frontal interocular index of 2.4 and upper lobes separated dorsally by 2.0– 2.1 times diameter of antennal socket ( Fig. 3View FIGURE 3 A, C). Number of stemmata at narrowest point of lobes (near junction with next lobe): upper lobe 8–10; median lobe 7; and lower lobe 10–11 ( Fig. 3View FIGURE 3 D). Antennal insertions separated by 2.5 times diameter of antennal foramen ( Fig. 3View FIGURE 3 C). Antenna. Exceeding apex of elytra by 2–3 antennomeres ( Fig. 3View FIGURE 3 A). Scape 0.5–0.6 of pronotum length and antennomere 3 about 1.0– 1.1 times the size of antennomere 4 ( Fig. 3View FIGURE 3 A). Prothorax. Pronotal disc with two anterior moderately raised nodules with apex, two posterior slightly raised rounded nodules and disc bearing short recumbent setae only ( Fig. 3View FIGURE 3 A, D – E). Pterothorax. Scutellum disc sparsely setose and mesocoxae narrowly separated, at narrowest point separated by 0.2 of the cavity diameter ( Fig. 3View FIGURE 3 A –B). Elytra. Length 3.3 times the length of the pronotum and vestiture of elytra comprising of short recumbent setae ( Fig. 3View FIGURE 3 A). Legs. Metafemur length 3.5 –4.0 times greatest width ( Fig. 3View FIGURE 3 B, E). Abdomen. Ventrites with short recumbent setae. Ventrite 1 about 1.5–1.6 times the length of ventrite 2, ventrite 5 is as long as ventrite 4 and apically emarginate ( Fig. 3View FIGURE 3 B).

Types. Holotype: Western Australia: 2km WSW of Muggan roadhouse, 156km SW of Warburton (27 °00’S, 125 ° 19 ’E), 13–14.ix. 1982, B. Hanich & T.F Houson ( WAM).

Biological data. The single specimen was collected in unknown circumstances.

Distribution. This species is known from a single specimen collected 2 km west south west of Muggan (now Warburton) Roadhouse and 156 km southwest of Warburton.


Western Australian Museum