Xiphentedon kayovei Risbec, 1957

Gumovsky, Alex, 2023, Revision of Xiphentedon Risbec, 1957 and Colpixys Waterston, 1916 (Hymenoptera, Eulophidae), with descriptions of new species from the Afrotropics, European Journal of Taxonomy 905, pp. 1-83 : 27-31

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 ).

Figures

Fig. 12. Xiphentedon kayovei Risbec, 1957. A–B. ♀, holotype (Rwanda; MRAC). C–F. ♂ (Rwanda; MRAC). A, C. Habitus in lateral view. B. Head in frontal view. D, F. Axillula. E. Propodeum.

Fig. 13. Xiphentedon kayovei Risbec, 1957. A–D. ♀, holotype (Rwanda; MRAC). E–F. ♂ (Rwanda; MRAC). A, E. Habitus in lateral view. B. Head enlarged. C. Head and mesosoma in dorsal view. D. Part of mesosoma in lateral view, axillula is arrowed and is shown in inset. F. Head in frontal view.

Fig. 14. Xiphentedon kayovei Risbec, 1957, ♀ (Rwanda; MRAC). A–B. Habitus in lateral view. C. Habitus in dorsal view.D. Head and mesosoma.E. Propodeum.F–G. Head in frontal view.F. General view. G. Lower face enlarged.