Xiphentedon kayovei Risbec, 1957

Figs 12–14

Xiphentedon kayovei Risbec, 1957: 150 .

Diagnosis

As for the genus and group and also: scape pale, pedicel and flagellum dark (Fig. 14F); head dorsally about 2.5 × as wide as long; interantennal space without a process; gena slightly bulging (Figs 13B, F, 14F); fore tibia with two pale stripes, mid and hind tibiae dark basally, pale distally, but with a different darkening: hind tibia dark at most on its basal half, but mid tibia dark on about its basal ¾–+/5 (Figs 12A, 14A, C); axillular projection bidentate and broadly sessile (Figs 13D); median propodeal strip broad, smooth, not sunken (Figs 13C, 14E).

Female

Length 4.0 mm. Pedicel plus flagellum about 2.0× as long as scape; gaster about 4.0× as long as wide, syntergum at least 6.6× as long as wide; CC with two to six short setae on ventral side (not always seen, moved from ventral margin of SC); WIP: with very broad blue field along apical margin and with narrow blue and green fields.

Male (not previously known)

Metasomal petiole slightly less than 3.0 × as long as its basal width, without anterior collar.

Type material examined

Holotype

RWANDA • ♀ (pinned on a minute pin); Kayove, terr. Kisenyi; 200 m a.s.l.; 14 Feb. 1953; P. Basilewsky leg.; MRAC.

Other material examined

DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “ Congo Belge: P.N.A., Kitondo (près Gandjo), 2000 m., 7–23 Jan. 1935, G.F. de Witte: 1025”; MRAC • 1 ♀; “ Congo belge: P.N.A., Mt. Sessero, près Bitashimwa ( Bambous), 2000 m, 1–2 Aug. 1934, G.F. de Witte: 505”; MRAC • 1 ♀; “ Congo belge: P.N.U. [ Park Nationale Upemba], Kaziba affl. g. Senze s. (affl. dr. Lufira), 1.140 m., 8–14 Feb. 1948, Mis. G.F. de Witte. 1274a”; MRAC • 1 ♀; “ Congo Belge: Kivu, Nyongera (près Rutshuru), 1218 m., 18 Jul. 1935, G.F. de Witte: 1665”; MRAC • 1 ♂; “ Congo belge: P.N.A., Kanyabayongo ( Kabasha), 1760 m, 6 Dec. 1934, G.F. de Witte: 871”; MRAC .

RWANDA • 1 ♂; same collection data as for holotype; “R. DET. 7289 E.”; MRAC • 2 ♀♀, 2 ♂♂; “ Congo belge: Ruanda, Ruhengeri ( Sources Kirii), 1800–1825 m., 562”; 31 Aug. 1934; G.F. de Witte; MRAC .

UGANDA • 1 ♀; near Kampala, 2 km E of Mukono; 21 Mar. 2009; A. Gumovsky leg.; sweeping on grassland and palms; SIZK .

Biology

Unknown.

Distribution

Rwanda (Risbec 1957), DRC, Uganda (new records).

Remarks

The species is somewhat confusable with X. neserorum sp. nov., but differs in having a longer syntergum in the female (about 5.0 × as long as wide, whereas about 3.0× in X. neserorum); different dark coloration of mid and hind tibiae (the tibiae darkened similarly in X. neserorum), and in the longer metasomal petiole of the male (nearly 2.8× as long as wide, whereas it is slightly longer than broad in X. neserorum).