Bamarosis, Schawaller & Bigalk, 2021

Schawaller, Wolfgang & Bigalk, Sonia, 2021, Two new genera and six new species of Stenosini (Coleoptera: Tenebrionidae Pimeliinae) from Myanmar (Burma), collected by René Fouquè, Zootaxa 5068 (1), pp. 133-141 : 134

Bamarosis gen. nov.

( Figs 1 , 7 )

Description. Head without keels or medial impression; eyes reduced, divided by genae in dorsal and ventral parts, dorsal part longitudinal and composed only by few facets, ventral part nearly invisible and composed only by 2–3 facets; antennomeres completely separated. Pronotum cordiform, with elevated large rounded anterior corners, disc without keels or impressions, lateral margins unbordered in posterior half; prosternal process not protruced backwards. Elytra oval, widest in middle, humeral angles extremely developed, without teeth, rounded and elevated, scutellar area distinctly excavated, elytra without rows of punctures or keels, lateral margins keel-like and elevated in anterior half; epipleura extremely broad in anterior half below large humeral angles, without row of punctures. Ventrites with extremely fine punctures, surface shagreened. Tibiae oval in cross-section, without longitudinal keels or impressions, tarsi of all legs short. Aedeagus ( Fig. 7 ) with long parallel apicale with rounded apex, basale long, narrow. Female unknown.

Diagnosis. The eyes are reduced but still divided into dorsal and extremely small ventral part, thus Bamarosis gen. nov. is placed into the subtribe Dichillina . The unusual structures of pronotum and elytra are peculiar and so far unknown in all genera of Stenosini , see keys to genera of Stenosini in Medvedev (1994b) and Aalbu et al. (2017).

Type species. Bamarosis fouquei sp. nov. by present designation.

Composition. Monotypic.

Etymology. Named in honour of the human ethnic group Bamar, from central Myanmar ( Burma).

Figures

FIGURES 1–6. Dorsal view of Stenosini from Myanmar (Burma). 1. Bamarosis gen. nov. fouquei sp. nov., holotype NMPC. 2. Shanosis gen. nov. renei sp. nov., holotype NMPC. 3. Gebieniella ellenae sp. nov., holotype NMPC. 4. Gebieniella matthiasi sp. nov., holotype NMPC. 5. Stenosis helenae sp. nov., holotype NMPC. 6. Stenosis mandalayca sp. nov., holotype NMPC. Scale line: 1 mm.

FIGURES 7–12. Aedeagus of Stenosini from Myanmar (Burma). 7. Bamarosis gen. nov. fouquei sp. nov., holotype NMPC. 8. Shanosis gen. nov. renei sp. nov., holotype NMPC. 9. Gebieniella ellenae sp. nov., holotype NMPC. 10. Gebieniella matthiasi sp. nov., holotype NMPC. 11. Stenosis helenae sp. nov., holotype NMPC. 12. Stenosis mandalayca sp. nov., holotype NMPC. Scale line: 0.5 mm.