Gauromaia (Celebesa) latipennis ( Pic, 1921 ) Telnov & Ruzzier, 2024

Telnov, Dmitry & Ruzzier, Enrico, 2024, A redefinition of Gauromaia Pascoe, 1866 (Coleoptera: Tenebrionidae: Stenochiinae), Zootaxa 5551 (3), pp. 531-555 : 549-550

Gauromaia (Celebesa) latipennis ( Pic, 1921) comb. nov.

( Figs 10A–C )

Celebesa latipennis : Pic 1921: 23 (description).

Type material examined. Syntype 1 specimen MNHN [not sexed]: Samanga S. Celebes Nov.1895 H.Fruhstorfer. [printed, black frame] // type [handwritten] // C. latipennis n sp [handwritten] // Muséum Paris Coll. M. Pic [printed] // SYNTYPE [printed, label red] // Syntype Celebesa latipennis Pic, 1921 [printed] // MNHN, Paris EC 20364 [printed, supplemented with a QR code] .

Redescription. Total body length 13 mm (syntype). Body subcylindrical. Dorsum and venter glabrous. Head subrectangular, glossy, flattened in dorsal aspect. Left mandible apex bidentate, right mandible apex rounded. Terminal maxillary palpomere securiform. Mentum transversely subrectangular, flattened in ventral aspect, with a deep, large posterolateral pit with its anterior margin somewhat elevated. Canthus moderately developed, laterally not carinate, completely concealing antennal insertion and basal antennomere from above. Epicranial ‘neck’ wide, transition point from occiput not indicated. Eye strongly reniform, anterior margin broadly emarginate at insertion of canthus. Tempus moderate, slightly bulged dorso-laterally and immediately constricted posteriad, approx. dorsal eye length. Interfacetal setae not present. Head dorsal punctures circular to elliptical, variably dense, becoming sparser on vertex and epicranial ‘neck’. Intervening spaces variable wide, smooth. Antenna 11-segmented with five terminal antennomeres composing club. Antennomeres III–IV slender, I–VI glossy and nearly glabrous; antennomeres VII to XI variably strongly widened and dorso-laterally flattened, densely punctured and setose. Terminal antennomere apically subtruncate. Pronotum transverse, moderately convex in dorsal aspect, glossy. Pronotal length to maximum width ratio is ~ 0.9.Anterior pronotal margin subtruncate to broadly rounded, posterior is subtruncate. Anterolateral angles rounded, posterolateral angles nearly right-angled in dorsal view. Posterior and lateral edge of pronotum margined, including at posterolateral angles. Lateral edge of pronotum visible in dorsal view except at anterolateral angles, broadly rounded. Transition of pronotal disc to hypomeron carinate. Dorsal pronotal punctures somewhat larger than those on head dorsum, intervening spaces variable. Prothoracic hypomeron very sparsely punctured. Scutellar shield subcircular, rounded apically, glossy and glabrous. Elytra elongate subcylindrical, convex in dorsal aspect, moderately widened laterally in posterior 1/3, glossy and glabrous. Elytral length to maximum combined width ratio ~ 1.5. Humerus obsolete, humeral callosity present, weak. Lateral margin of elytron deflected, visible from above at humerus and near apex. Elytron with eight shallow longitudinal striae and a short, inconspicuous scutellar stria; no visible punctures in striae. Complete striae one and two stretch to nearly elytral apex. Interstriae flat, sparsely microscopically punctate. Ratio width of elytra across humeri through apex of scutellar shield versus basal width of pronotum across posterolateral angles nearly 1.2. Epipleuron broad, stretches towards apical 1/5 of elytra. Procoxa widely separated, prosternal intercoxal process rather wide, flat in ventral aspect, distinctly margined laterally and at anterior edge of procoxal cavity, nearly step-like shaped in lateral view at posterior extent of procoxal cavity, touches posterior margin of prosternum and subtruncate at apex. Mesoventrite slightly transversely impressed antero-ventrally between mesocoxa, its lateral margins not elevated, median portion somewhat convex ventrally between mesocoxae, apex emarginate between mesocoxal cavities. Mesanepisternum separated from mesoventrite and mesepimeron by distinct suture. Mesocoxa broadly separated by short, broad, apically rounded intercoxal process of metaventrite. Median length to maximum width of metaventrite ratio ~ 0.5. Metathoracic discrimen distinct, nearly complete. Metacoxal cavities broadly separated by moderately long, apically subangulate intercoxal process of first abdominal ventrite. Last visible tergite and ventrite broadly rounded at posterior margin. Legs long, femora long and narrow, not clavate. Protibia subequal in length to profemur, slightly curved. Meso- and metatibia shorter than corresponding femur, slightly curved, slightly thickened distally. Tarsomeres ventrally each with a brush of dense orange setae. Penultimate tarsomere subcylindrical, not bilobate. Terminal tarsomere slightly curved, pretarsal claws with short empodium. Basal metatarsomere much shorter than combined length of remaining tarsomeres.

Sexual dimorphism. Unknown.

Ecology. The studied syntype comes from lower montane rainforest.

Distribution. Southern arm of Sulawesi (Southern Sulawesi Province).

Figures

FIGURE 10. Gauromaia subgenus Celebesa Pic, 1921, adult morphology. A–C–G. (C.) latipennis (Pic, 1921) comb. nov., syntype in dorsal (A), lateral (B) and ventral (C) view; D–F–G. (C.) striata (Pic, 1923) comb. nov., syntype in dorsal (D), lateral (E) and ventral (F) view [images courtesy Christophe Rivier, MNHN].