Typhoctes colombiensis Brothers, 2025

Typhoctes colombiensis Brothers , sp. nov.

( Fig. 2 View FIGURE 2 )

Type material. Holotype, ♂, COLOMBIA, Dept. Cesar (label erroneously Magdalena), Valledupar [approx. 10°27’N 73°15’W], 4–7.vi.1968, Borys Melkin Collector ( AMNH _ IZC 00369483 About AMNH ). GoogleMaps

Diagnosis. Male. Frons with dense white simple decumbent setae forming a distinct lateral whorl; clypeus densely covered with long thickened semi-decumbent subplumose white setae concealing the cuticle. Lateral face of pronotum moderately punctate becoming smoother postero-ventrally with slight indications of longitudinal costulation on postero-ventral third; disk of propodeum entirely densely longitudinally costulate except becoming punctate at lateral extremity, declivity finely and sparsely punctate; lateral face of fused metepisternum-propodeum densely longitudinally costulate but moderately punctate on dorsal third. Mid and hind tibial apical spurs entirely white. Female. Unknown.

Description. Male. Length 5.6 mm. Body shining black; pygidium, appendages and wing veins dark reddish brown; mandible and tegula reddish brown; mid and hind tibial spurs entirely white; wings infumated throughout but slightly darker on apical third. Vestiture of decumbent and erect, silvery white and fuscous to black hairs, forming the following notable patterns: frons with dense white simple decumbent setae forming a distinct whorl on each side and a few erect subplumose white and black setae between antennal bases, clypeus densely covered with long thickened semi-decumbent subplumose white setae concealing the cuticle, gena with simple decumbent and erect finely subplumose white setae, mandible with erect densely subplumose fuscous setae; mesosoma generally with fairly dense decumbent apparently simple to finely subplumose white setae (some pale fuscous on scutum) and sparse apparently simple to finely subplumose dark fuscous erect setae antero-dorsally; legs with white setae except tarsal setae pale fuscous; T1, T2 anteriorly and T3–T5 fairly sparsely covered with erect finely subplumose white setae; T2 posteriorly with semi-decumbent simple dark setae and scattered erect finely subplumose fuscous setae near posterior margin; T3–T6 with scattered erect apparently simple to densely subplumose fuscous setae becoming denser posteriorly; T7 (pygidium) with dense short erect subplumose fuscous setae; T1 and T2 with conspicuous posterior fringe of semi-erect thickened white setae; T3 and T4 with very inconspicuous sparse fringe of fine whitish setae; metasomal sterna with sparse erect finely subplumose white setae, a very few scattered long erect finely subplumose fuscous setae on S4–S6; S8 (hypopygium) with shorter erect finely subplumose pale to dark fuscous setae.

Head. 1.24 × as wide as high, 1.03 × width of mesosoma; narrowest part of frons 0.70 × eye height. Clypeus densely and finely punctate, almost flat but weakly convex medio-dorsally. Frons slightly convex, with very fine well separated punctures; ventral width between eyes 0.67 × dorsal width between eyes. Median ocellus 1.33 × as wide as lateral ocellus, 0.26 × narrowest width of frons; POL 0.83 × OOL, POL 2.00 × LOL. Eye large, shallowly reniform, eye height 0.74 × head height; malar space very short, 0.04 × eye height. Antennal sockets large, oval; ratios of lengths of antennal segments 1–4 about 19:7:13:18, scape 2.11 × as long as wide.

Mesosoma. 1.67 × as long as wide. Pronotum 1.56 × as wide as long, slightly widening posteriad, 2.65 × as wide as mid-length, posterior margin evenly shallowly concave; epaulet an inconspicuous vertical tuft of short pale setae on weakly convex humeral tubercle; dorsum with well-marked spaced moderate punctation irregularly interspersed with fine punctures; lateral face weakly concave dorsally, moderately punctate becoming smoother postero-ventrally with slight indications of longitudinal costulation on postero-ventral third. Mesoscutum densely moderately punctate anteriorly, punctures becoming larger and sparser posterad and surface smooth postero-medially, without notauli, shallow poorly defined parapsidal groove extending half scutum length from postero-lateral angle. Scutellum coarsely longitudinally costate, anterior margin and posterior margins narrowly smooth. Metanotum smooth with scattered ill-defined irregular punctures medially and rough with posteriorly diverging costae laterally. Disk of propodeum entirely densely longitudinally costulate except becoming punctate at lateral extremity, declivity finely and very sparsely punctate with very few transverse costulae at postero-ventral extremity. Mesopleuron evenly gibbose, coarsely and densely punctate but less so postero-ventrally. Metepimeron weakly convex, clearly distinguishable, moderately punctate on dorsal third, smooth antero-ventrally. Lateral face of fused metepisternum-propodeum densely longitudinally costulate but moderately punctate on dorsal third.

Wings. Fore wing 2.07 × as long as mesosoma, 3.23 × as long as broad, entirely weakly infuscated but darker beyond cells; marginal cell almost rectangular with straight truncate apex, 3.04 × as long as high, 0.74 × as long as first submarginal cell; second submarginal cell 2.09 × as long as high, 0.84 × as long as marginal cell, 0.62 × as long as first submarginal cell; third submarginal cell 1.16 × as long as high, 0.51 × as long as marginal cell, 0.37 × as long as first submarginal cell. Hind wing with 2 and 3 basal hamuli, and 7 and 8 apical hamuli.

Legs. Dorsal tooth on hind coxa reduced to inconspicuous weak postero-dorsal longitudinal ridge. Mid and hind tibiae each with 2 longitudinal rows of 2 or 3 black bristles dorsally and 2 or 3 similar bristles apically. Longer spur of hind tibia 0.77 × as long as hind basitarsus. Claws slender, with small tooth near middle of ventral margin.

Metasoma. 2.69 × as long as wide.T1 strongly constricted into anterior narrow neck, bulging dorsally on posterior third, constricted again at junction with T2, 1.43 × as long as wide and 0.65 × as wide as T2; indistinguishably fused with S1 on anterior third; entirely sparsely moderately punctate, smooth interspaces at least the width of punctures. T2 similarly punctate as T1 on anterior half but punctures becoming denser and finer posteriorly with dense mixture of moderate and fine punctures; anterolaterally with short sparse and indistinct pale felt line 0.22 × lateral length of T2, its anterior extremity at 0.13 × lateral length of T2. T3–T6 with very dense mixture of small and very fine punctures. Pygidium (T7) almost square, dorsally flattened and posteriorly slightly retuse, with dense small punctures, posterior margin almost straight medially and convex laterally. S1 mainly flattened, smooth and shining with few widely scattered moderate punctures at about mid-length. S2–S6 punctation similar to corresponding terga but slightly less dense. S7 very short, smooth. Hypopygium (S8) almost square, flattened, posterior margin almost straight, with fairly dense small punctures.

Remarks. The specimen is pinned through the right side of the mesosoma using a fine minuten pin supported on the main pin by a small block of polyporus.

Distribution. Colombia: Cesar.

Etymology. The name refers to the country of origin of the holotype. It is an adjective.