Ingoma (Ingoma) triquerta Fennah, 1954

(Figs 1D, E, F; 3; 4)

Ingoma triquerta Fennah, 1954: 458, fig. 1.

MATERIAL EXAMINED. — Kenya • 1♂; “ van Someren / Rabai 8-37”; NHM.

DISTRIBUTION. — Southern Kenya, Mombasa County.

DESCRIPTION

Structure (Figs 1D, E, F; 3)

Coryphe slightly concaved,densely striated.Metope not devided into acro- and eumetope, with weakly concave lateral margins,narrower above eyes, with short weak median carina running between two short weak sublateral carinae above metopoclypeal suture (Fig. 1D). Metope smooth, without traces of larval sensory pits (pustules) visible (Fig. 3C). Metopoclypeal suture deep, weakly convex. Postclypeus with weak median carina. Anteclypeus with strong median carina. Head long in lateral view (Fig. 1E; 3B). Pronotum with convex lateral carinae separating its medial part and with median groove; posterior margin concave (Fig. 3A). Forewings slightly narrowing apically (Fig. 3B). Basal process of forewing precostal margin nearly rectangle. Radius and median running by short common stem from the basal cell and furcating closely to the basal cell in basal fifth of wing (R before M). Few transverse veins. Forewing vein branching sequence: R 3-4 (on right and left wing of the same specimen); M 4, M 1 and M 2 furcating at and after wing middle; im 1-2; m-cua 3; CuA 2, furcating before wing middle. Pcu joining A 1 after wing middle. Hind tibia with eight spines apically. First metatarsomere with six intermediate spines apically.

Coloration (Fig. 3)

Coryphe dark brown, with black lateral margins and weak pale median stripe apically. Metope light brown apically below its upper margin and dark brown medially. Metopoclypeal suture and postclypeus yellowish light brown. Head laterally greenish light yellow, with black margin of coryphe, dark brown spot behind-below eye, and dark brown stripe below antenna. Scapi light brown. Pedicels light brown, with dark brown basal parts. Third antennal segment and flagellum dark brown. Rostrum yellowish light brown, with dark apex. Pronotum dark brown, with wide pale median stripe. Tegulae light yellow, with pale spots behind eyes. Forewings dark brown to black on veins and claval margins, with light yellow precostal margins and subcostal areas. Each forewing with a pair of large pale areas on corium and clavus. Veins of appendix dark brown except in subcostal area. Hind wings greyish dark brown. Fore coxae, trochanters, and femora dark brown. Fore tibiae yellowish light brown, with dark brown apices. Fore tarsi dark brown. Middle coxae and trochanters brown to dark brown. Hind coxae, trochanters, and femora yellowish brown to dark brown. Hind tibiae and tarsi light yellow. Apices of leg spines black. Abdominal sternite III green, other sternites dark brown. Styles yellowish brown.

Male terminalia (Fig. 4)

Hind margins of pygofer with large process in its upper thirds (Fig.4A).Anal tube elongate,more than twice longer than wide medially,concave apically (in dorsal view) (Fig.4B). Anal tube connected with basal part of penis and with inner surfaces of pygofer lobes by well sclerotized suspensorium.Anal column short and wide. Penis narrow, curved in a wide arc apically, with 18 denticles of same size on its weakly sclerotized apical part (Fig. 4C, D, c). Connective with large elongate cup (Fig. 4C). Style massive, with elongate capitulum (in dorsal view) bearing large finger-shaped lateral tooth (Fig. 4E, F).

Measurement

Total length. Male: 7.0 mm.