Tmesisternus wendesi, Withaar, 2019

Withaar, Gerrit, 2019, Six new species of the genus Tmesisternus from New Guinea and Seram (Coleoptera: Cerambycidae, Lamiinae, Tmesisternini), Sugapa Digital 11 (2), pp. 69-78 : 74-75

Tmesisternus wendesi spec. nov.

( Figs 6 , 10 )

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Holotype: ♂, [ Indonesia] Papua Exp. 1903, Wendesi [ RMNH].

Diagnosis: Judged from the key in Gressitt (1984) page 32.20 this species belongs to the griseus group.

Description: Length: 10 mm, width: 3 mm. Female unknown.

Head chestnut coloured. Dorsally and ventrally with grey pubescens, except dorsally for a central shallow ridged groove from base to labrum, lateral ridges from antennal insertions to the front but not reaching the labrum and two small bands behind the lower eye lobes. Eyes red, entirely covered with fine punctures.

Antennae in holotype unfortunately not complete, only the claviate scape present which is chestnut coloured.

Pronotum chestnut coloured, almost square, somewhat tapering to the apex. Shallow lateral ridges, apically with a tiny blunt tubercle. Entirely covered with deep punctures and with very fine transparent pubescens, except for a small central area. Dorsally long yellow contiguous stiff hairs along the lateral ridges. Ventro-laterally a second small, indistinct blunt tubercle.

Scutellum pitchy and shiny.

Elytra yellow-brown, with a darker brown postscutellar area. Basal three-quarter parallel sided, apically gradually bent to a strong lateral spined apex. Elytra basally with deep punctures apically continued by small punctures covered with a transparent layer, entirely covered with fine transparent pubescens, at some areas the pubescens is grey, at both sides of the sutur scattered short stiff yellow hairs. Subapically and apically with a faint oblique transverse of pale yellow pubescens.

Legs with olive-green coloured femora. Tibia and tarsi yellow.

Abdomen ventrally chestnut coloured with scarce grey pubescens.

Genitalia as in fig. 10.

Distribution: Only the holotype is known, from Wendesi at the southside of the Birdshead Peninsula at the Wandammen Bay, Papua Barat, Indonesia.

Etymology: The species is named after the village Wendesi where the holotype was found.

Figures

Figs 1-6. Tmesisternus species, adults. Fig. 1. T. bernsteini spec. nov. holotype ♂, Waigeo Island, Papua Barat, Indonesia (RMNH); Fig. 2. T. busuensis spec. nov. holotype ♂, Busu River, Papua New Guinea (BPBM); Fig. 3. T. deyrollei spec. nov. holotype ♂, Seram Island, Moluccas, Indonesia (RMNH); Fig. 4. T. hunsteinensis spec. nov. holotype ♀, Hunsteinspitze, East Sepik Province, Papua New Guinea (MFNB); Fig. 5. T. pindiuensis spec. nov. holotype ♂, Pindiu, Morobe Province, Papua New Guinea (BPBM); Fig. 6. T. wendesi spec. nov. holotype ♂, Wendesi, Papua Barat, Indonesia (RMNH).

Figs 9-10. Male genitalia of Tmesisternus, a. paramere lateral; b. paramere ventral; c. aedeagus ventral; d. aedeagus lateral; e. 8th ventral tergite. Fig. 9. T. pindiuensis spec. nov.; Fig. 10. T. wendesi spec. nov.