Teasienna heratyi sp. nov.

(Figs 111–120)

Diagnosis. Female (male unknown): flagellum progressively lighter towards pale yellow clava (Figs 115, 120); fore wing uniformly and broadly infumate (Figs 111, 119); body setation long (longest genal setae about 1/2 length of tegula) and brown (Figs 113–116); antenna (Figs 115, 120) strongly clavate, clava about twice as wide as F1; funicular segments strongly transverse; mesosoma length about 1.3× width.

Teasienna heratyi can be easily separated from all previously described species, mostly by the conspicuously and broadly infumate fore wings (Figs 111, 119), long brown body setae (Figs 113–116), lighter colouration of the head, mesosoma and clava (Fig. 111, 120), and larger body size of females. Additionally, from T. eirene it differs mainly in having the antenna much more strongly clavate, with the distal funicular segments strongly transverse (Figs 115, 120).

Material examined. Type material. Holotype ♀ (deposited in UCR) [entire except right front leg beyond coxa missing and left front leg glued aside; on triangular card]. KENYA: ‘ Kenya: Kakamega D. Yala R. Nature Res. MT, 0°12’N 34°52’ E, 1450 m, 20.iii.2002; R. Snelling’, ‘ UCRCENT 00486814 ’.

Description. Female. Body length: 2 mm.

Colour. Head dark brown except clypeus and malar region lighter (Figs 113–118). Mesosoma dorsally dark brown except pronotum and propodeum lighter (Figs 116, 118); membranous area between pronotum and fore coxa whitish (Fig. 117); mesopleuron (Fig. 117) with upper mesepisternum dark brown, lower mesepisternum and mesepimeron lighter. Gaster brown, paler ventrally (Figs 111, 112). Eyes and ocelli whitish (Fig. 114). Antenna (Figs 115, 120) with scape, pedicel and anelli light brown; F1 brown, the following funicular segments progressively lighter towards pale yellow clava. Mandibles light brown, teeth reddish-brown (Fig. 113). Legs (Fig. 111) with coxae and femora light brown; trochanters, tibiae and tarsi, except for brown pretarsi, pale yellow. Wings uniformly infumate, tegula and venation brown (Figs 111, 119). Body and wing setation brown (Figs 113–116, 119).

Sculpture. Head and mesosoma smooth to finely coriaceous-alutaceous (Figs 113–116); gaster smooth.

Structure. Head. Longest genal setae about 1/2 the length of tegula. Head in profile with face slightly convex at toruli level (Fig. 115). Lower margins of toruli below lower eye margins (Fig. 113). Scape reaching median ocellus (Fig. 113). Antenna strongly clavate, clava twice as wide as F1 (9.0:4.5) (Figs 115, 120). Eyes oval, inner margins subparallel (Fig. 113); eye in lateral view not distinctly inclined relative to vertical axis of head (Fig. 115). Head width 2.65× length in dorsal view (53:20) and about 1.2× height in frontal view (53:44). POL about 1.3× OOL (12:9). Eye height about 1.3× length (24:19) and 1.6× malar space (24:15). Scape length about 1.2× eye height (28:24). Head width 1.15× length of pedicel plus flagellum (53:46). F1 width about 1.3× length (4.5:3.5); F5 width about 1.8× length (8.0:4.5); clava length about 1.4× width (13:9).

Mesosoma. Scutellar spine large, but hardly visible among dense setae (Fig. 116). Propodeum (Fig. 118) smooth, median carina very strong; spiracles very large, oval. Fore wing (Fig. 119) with very small speculum (effaced by setae on ventral side of the wing), otherwise completely setose; parastigma with hyaline break. Mesosoma length about 1.3× width (58:45), width 1.15× height (45:39). Mesoscutum width 2.25× length (45:20). Mesoscutellum length subequal to width (25:24). Propodeum length about 0.4× mesoscutellum length (9:25). Fore wing length about 2.3× width (150:65). MV length about 2.9× width (13.0:4.5); SV about 1.9× MV (25:13); PV about 3.4× MV (44:13).

Gaster. Short ovate, about as long as head plus mesosoma (Figs 111, 112); length 1.65× width (73:44).

Male. Unknown.

Distribution. Kenya.

Biology. Unknown.

Etymology. Named in honour of Dr. John Heraty (UCR), for his contribution to the systematics of Chalcidoidea .