Tsounkranaglenea cabrasae, Medina & Barševskis, 2024

Tsounkranaglenea cabrasae sp. nov.

Fig. 1 View Figure 1 .

HOLOTYPE, male: PHILIPPINES – Mindanao, Davao de Oro / Maragusan / Brgy. New Albay / 7-9.vi.2024 / 1800 masl. M.N.Medina, leg. / printed on red card. The holotype is currently at MMCP and will be deposited at the PNM. No paratypes.

Description. Dimensions: Holotype female: LB: 22.0 mm. WH: 3.5 mm. LL: 1.0 mm. WL: 0.7 mm. LP: 3.4 mm. WP: 3.5 mm. LE: 9.0 mm. WE: 4.5 mm. WEH: 4.5 mm.

Adult male ( Fig. 1 View Figure 1 ). Small-sized, body length 12 mm. Dorsal view, prothorax wider than head. Eyes matte black, deeply emarginate, not divided, lower eye lobe slightly longer than wide. Mandible very short, shorter than palpi, convex at base. Labrum matte light brown, with few long soft golden setae. Clypeus lustrous, light goldish brown, arc-shaped, base lined with short whitish setae. Vertex and frons with deep puncturations arranged at random. Antennae longer than body, dark brown, densely covered with very fine recumbent pubescence, underside of scape, pedicle, and antennomeres III-VI lined with semi-erect setae. Scape reaching basal third of pronotum, pedicle short bell-shaped, antennomere III longer than scape and IV, IV and V subequal, VI slightly recurve, VII-

VIII subequal, VII longer than IX, IX- XI subequal.

269 Prothorax cylindrical, without lateral tubercles, sinuate near the base, slightly bulging at pronotal disc. Pronotum densely covered with yellowish recumbent pubescence, with deep puncturation scattered at disc.

Elytra matte black, densely covered with deep puncturation from base to middle, diminishing towards apex. Apex truncate

270 slightly concave with highly pointed sutural and marginal tooth. Humeri strictly angled, slightly raised. Lateral side with two distinct lateral carinae from humeral angle towards marginal apical tooth. Suture not raised. Elytra with very shallow depressions covered with thick band of yellowish pubescence arranged as follows: at basal third, three very shallow depressions after the middle ( Fig. 1 View Figure 1 ).

Procoxal cavity closed posteriorly, mesocoxal cavity open towards mesepimeron, metanepisternum triangular when viewed laterally. Metasternum and abdominal segments I-V densely covered with black and yellowish recumbent pubescence. Central disc of metasternum concave with longitudinal ridge.

Femora lustrous, dark brown, covered with whitish recumbent pubescence. Protibia expanded at anterior end. Hind tibia longer than protibia. Metatibia slenderer and longer than hind tibia. Protarsi and hindtarsi subequal, metatarsi longer than protarsi and metatarsi. Claws simple.

Male terminalia. The middle of sternite VII has short rake-shaped curvature extending two-thirds of the segment. Tergite VII slender, subequal to VI (about 1.0 mm). Parameres distinctly open, slightly recurved at middle, apex lined with soft erect yellowish setae, twice shorter than aedeagus

( Fig. 2 View Figure 2 , C). Tegmen slender, twice as long as parameres, slightly recurved laterally. Aedeagus about 2.0 mm long, slightly recurved when viewed laterally ( Fig. 2 View Figure 2 , G), robust at base, apex acuminate ( Fig. 2 View Figure 2 , E-F). Endophallus broad, subequal in length with aedeagus ( Fig. 2 View Figure 2 , E-G).

Adult female. Unknown.

Etymology. The new species is named in honor of our dearest colleague Dr. Analyn Cabras, a remarkable Philippine weevil worker, who has been instrumental in advancing Philippine coleopterology.

Differential diagnosis. Tsounkranaglenea cabrasae sp. nov. is distinct from other Tsounkranaglenea species based on the following: T. cabrasae sp. nov. has sternite VII with a unique short, recurved rake-like structure (vs. elongated rake-like structure in T. hefferni ). The rake-like structure of T. fissicauda is also short but not recurved. Elytral maculations are distinct between the three species: T. cabrasae sp. nov. having elytra densely covered with yellowish pubescence vs. T. hefferni and T. fissicauda devoid of large patches of pubescence. Elytra of T. cabrasae sp. nov. with shallow depressions covered with fine yellowish pubescence (vs. absent in T. hefferni and T. fissicauda ). Pronotum of T. cabrasae sp. nov. densely covered with yellowish pubescence (vs. T. hefferni devoid of pronotal markings, vs. T. fissicauda with three distinct band, one at middle and two each lateral sides). markings between the three species are distinct. The aedeagus structure of T. cabrasae sp. nov. is distinct having acuminate apex (vs. semi acute to acute in T. hefferni ).

Distribution. Philippines: Mindanao ( Davao de Oro: Mt. Candalaga, Maragusan, Davao de Oro).