Tmesisternus deyrollei, 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 : 71-72

Tmesisternus deyrollei spec. nov.

( Figs 3 , 8 )

urn:lsid:zoobank.org:act:4F0DAA92-2807-4FFD-9519-ED908F6EFFC7

Holotype: ♂, Ceram ill. 1882. E. Deyrolle [ RMNH].

Diagnosis: The species resembles very much Tmesisternus carlae Withaar, 2017 but deyrollei

is much larger. It has pronotal tubercles (lacking in carlae ) and the structure of the genitalia is different.

Description: Length: 19,5 mm, width: 5 mm. Female unknown.

Head black with black eyes. A double ridged groove from base to labrum, with on front an elliptical depression. Entirely covered with long grey contiguous pubescens, except for the ventral side, the central ridged groove, small lateral ridges and a small area behind the upper eye lobe. Antennae red, in holotype unfortunately not complete. Scape a little claviate. Entirely covered with very short transparent pubescens, except for the scape which is fringed beneath.

Pronotum black, with deep punctures, except for a central longitudinal area. From base bent to the tapering apex. No lateral ridges, but with sharp tubercles just in front of the apex. Ventro-laterally another small blunt tubercle present, surrounded by long grey pubescens. Entirely covered with fine transverse grey pubescens. Ventrally smooth and glossy.

Scutellum black, nearly round with scarce fine grey pubescens.

Elytra black, basal half parallel sided, apical half tapering to the round apex. Entirely covered with fine punctures and fine grey pubescens, some arranged in rows, except for a wide postscutellar area. The sutural ridge and two weak longitudinal ridges are fused just behind the apex and thus reaching the apex.

Legs with femora black, glossy, strong claviate and covered with contiguous grey pubescens. Tibia and tarsi red with fine transparent pubescens.

Abdomen ventrally, black and glossy, covered with long contiguous grey pubescens, except for a small central area.

Genitalia as in fig. 8.

Distribution: It has been found on the island Seram ( Moluccas, Indonesia).

Etymology: Tmesisternus deyrollei is named in honor of collector Emile Deyrolle (1838 - 1917), a naturalia trader from Paris (France), who obtained the holotype for the collection of the Rijksmuseum voor Natuurlijke Historie (Leiden), but probably did not collect it himself on Seram island.

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 7-8. Male genitalia of Tmesisternus, a. paramere lateral; b. paramere ventral; c. aedeagus ventral; d. aedeagus lateral. Fig. 7. T. busuensis spec. nov.; Fig. 8. T. deyrollei spec. nov.