Stenarella fenestralis, Santos & Bordera, 2025

3.1.7. Stenarella fenestralis sp. nov.

Figures 2 F View Figure 2 , 10 View Figure 10 , 23 F View Figure 23 , 28 View Figure 28

Etymology.

From the Latinized adjective fenestralis, - e, meaning “ window ”, in reference to the amusing fact that one of the specimens was collected at a window.

Diagnosis.

Stenarella fenestralis sp. nov. can be distinguished from all other Stenarella species by the combination of the following characters: mandible punctate at basal half (Fig. 10 C View Figure 10 ); longitudinal carina of frons complete; pronotum mostly with distinct longitudinal striae (Fig. 10 E View Figure 10 ); mesoscutum mostly smooth and shiny (Fig. 10 F View Figure 10 ); sternaulus deep and narrow, evenly upcurved, reaching anterior 0.6 of mesopleuron (Fig. 10 E View Figure 10 ); posterior area of propodeum rugulose (Fig. 2 F View Figure 2 ); thyridium 3.45–3.75 times as long as wide; posterior end of S 1 placed approximately opposite to spiracle of T 1 (Fig. 10 A, G View Figure 10 ); base of mandible whitish (Fig. 10 B, C View Figure 10 ); mesosoma mostly orange (Fig. 10 E, F View Figure 10 ); tergites II – III mostly orange (Fig. 10 A, G View Figure 10 ).

Description.

FEMALE. Fore wing 7.2–12 mm long. — Head (Fig. 10 A – C, E, F View Figure 10 ): Mandible, clypeus and face densely covered with very long setae. Mandible punctate at base, MLW 2.4–2.6. Malar space short, MSM 0.35–0.45. Clypeus smooth, CWL 2.85–3.0. Clypeus and face centrally mostly flat. Face centrally weakly rugulose, elsewhere shallowly granulate. Frons shiny, mostly smooth, granulate laterally, sparsely punctate, with strong and complete longitudinal carina. Vertex shiny, shallowly granulate laterally with fine and dense punctures. Antenna with 31–33 flagellomeres. — Mesosoma (Figs 2 F View Figure 2 , 10 A, D – F View Figure 10 ): Pronotum covered by uniform longitudinal strong and coarse striae, the striae fading dorsally leaving small dorsal smooth area. Epomia strong, reaching pronotal depression. Mesoscutum mostly smooth and shiny, anterior part of mid and lateral lobes with shallow dense punctures, area between posterior end of notauli with longitudinal striae Notaulus relatively wide and deep with transverse striae, reaching about 0.8 of mesoscutum. Scutellum densely and coarsely punctate. Mesopleuron and metapleuron densely setose. Mesopleuron almost entirely minutely rugulose with some striae dorsally. Epicnemial carina distinct, reaching 0.9 of distance to subtegular ridge. Sternaulus deep and narrow, evenly upcurved, reaching anterior 0.6 of mesopleuron. Metapleuron rugulose. Propodeum relatively long, dorsal profile in lateral view evenly convex and sloped. Anterior area of propodeum coarsely rugulose reticulate. Propodeal spiracle elliptic, SLW 2.35–2.50. Posterior area of propodeum rugulose. Posterior transverse carina of propodeum absent. Areolet very small, closed distally by an unpigmented vein 3 rs-m, APH 0.25–0.35. Vein 2 m-cu antefurcal to vein 3 rs-m. Hind wing vein Cua distinctly longer than crossvein cu-a, HW 1 C 2.1–2.2. — Metasoma (Fig. 10 A, G View Figure 10 ): Posterior end of S 1 placed approximately opposite to spiracle of T 1. T 1 LW 2.70–2.75; T 1 WW 2.0–2.35; T 2 LW 1.1–1.2; T 2 WW 2.3–2.45. Thyridium 3.45–3.75 times as long as wide. T 2 minutely punctate reticulate on a granulate background, anterior dorsal part only granulate. Dorsal valve of ovipositor with 5 teeth. Ventral valve with 6–7 teeth. OST 3.5–4.3. — Color (Figs 2 F View Figure 2 , 10 View Figure 10 ): Head mostly black: base of mandibles, mouth parts, clypeus, facial, frontal and genal orbits, whitish. Antenna mostly dark brown, basally lighter ventrally, f 7 – f 10 dorsally and f 6, f 11 partially, white. Mesosoma mostly orange: propleuron, ventral part of pronotum anteriorly, mesosternum, metasternum and metapleural carina, black; dorsal lateral rim of pronotum and subtegular ridge white cram. Fore and mid legs, mostly light orange; coxae and dorsal part of trochanters dark brown, ventral part of trochanters whitish. Hind leg dark brown. Wing hyaline. Metasoma mostly black: T 1 – T 2 anterior part of T 3 and rarely T 4 mostly orange, posterior margin of T 1 – T 2 yellow, posterior part of T 5 – T 7 white. — Male. Unknown.

Hosts.

Unknown.

Distribution.

Afrotropical. Known records from Angola, Malawi, Zambia and Zimbabwe (Fig. 23 F View Figure 23 ).

Material examined.

21 ♀♀. Holotype. ZIMBABWE (“ Rhodesia ”) • ♀; Harare (“ Salisbury ”), Chishawasha ; III.1979; A. Watsham ( NHMUK) . Dry pinned. Complete. — Paratypes. ANGOLA • 1 ♀; Huíla province, Tundavala; 8–10 miles NW. Sa da Bandeira ; 27–29.III.1972; Southern African Exp. B. M. 1972–1 ( NHMUK) . MALAWI (“ Nyasaland ”) • 1 ♀; Mangochi (“ Fort Johnston ”); 12 Km E of Ft. Johnston ; 3280 ft; 1.I.1929; rather thick bush; W. A. Lamborn ( OXUM) . ZAMBIA • 1 ♀; 15 km. E. Lusaka; III.1980; R. A. Beaver ( NHMUK) . ZIMBABWE (“ South Rhodesia ”) • 1 ♀; Harare (“ Salisbury ”), Chishawasha ; II–III.1978; A. Watsham ( NHMUK) • 1 ♀; same data except X.1978 • 5 ♀♀; same data except XII.1978 • 1 ♀; same data except III.1979 • 1 ♀; same date except III. 1980 • 1 ♀; same data except IX.1980 • 1 ♀; same data except XI.1980 • 2 ♀♀; same data except XII.1980 • 1 ♀; same data except I.1981 • 1 ♀; same data except II.1981 • 1 ♀; same data except III.1981 • 1 ♀; same data except “ At window Ent. Laboratory Salisbury Dist. Dept. Agric. S. Rhodesia ”; 27.IX.1951; M. C. Mossop; “ Pres by Com Inst Ent B M 1953–623 ” / Com. Inst. Ent. Coll. NO. 1318 / Parasilsila sp. G. J. Kerroch det. 1953 / Accession No. 6709 (all of them NHMUK) .