Pampsilota tsavoensis Liston & Koch, 2017

Liston, Andrew D., Goergen, Georg & Koch, Frank, 2017, Revisions of the Afrotropical genera of Argidae and species of Pampsilota Konow, 1899 (Hymenoptera, Tenthredinoidea), Deutsche Entomologische Zeitschrift 64 (1), pp. 1-25 : 13

Pampsilota tsavoensis Liston & Koch sp. n.

Female.

Figures 27-30 , 66-67

Head black with following yellow: labrum, clypeus, supraclypeal area. Interantennal area light brown; antenna black with ventral surface brownish, base of scape yellow. Thorax yellow with following black: mesoscutum, metascutum, dorsal half of mesepisternum blackish. Legs yellow with following black: narrow apex of mesotibia, broad apex of metatibia, pro- and mesotarsomeres more or less blackish ringed apically, metabasitarsomere black ringed apically with following tarsomeres black. Wings slightly infuscate; intercostal area and very small substigmal spot infuscate; stigma, costa, subcosta and rest of venation blackish. Abdomen yellow.

Head parallel-sided behind eyes. Antenna 1.3 × as long as maximum head width; flagellum conspicuously enlarged towards apex, quadrangular in cross section, interior surface with sharply compressed longitudinal carina, other longitudinal carinae conspicuously weakly compressed. Eyes very slightly converging towards clypeus. Anterior margin of the clypeus shallowly, circularly emarginated; supraclypeal area scarcely protruding up to ventral limit of interantennal carinae, interantennal carinae obtusely ridged, not converging below, extending about to level of ventral margin of torulus. Frons, supraclypeal area and clypeus sparsely micropunctate, shiny, vertex and gena densely micropunctate, subshiny; pubescence whitish. Mesoscutum irregularly microsculptured, subshiny; pubescence similar to that on head. Abdomen smooth and shiny. Valvulae 3: Figs 27-28 . Lancet with about 16 serrulae: Figs 29-30 .

Length: 7.0 mm.

Male.

Unknown.

Type material.

Holotype: ♀. Labels: "Kenya S. E., Tsavo, Voi env[ironment], 15.IV.2004, M. Snižek leg."; " DEI-GISHym 21247"; "Holotype, Pampsilota tsavoensis n. sp. ♀, det.: F. Koch, 2016" [red] ( OLML).

Etymology.

The species is named after its collection locality, Tsavo National Park in Kenya.

Distribution.

Kenya (Fig. 37 ).

Diagnosis.

Pampsilota tsavoensis adults resemble those of Pampsilota dahomeyanus and Pampsilota nigeriae in the mostly yellow colour of the abdomen and thorax underside, but differ from Pampsilota dahomeyanus in the blackish dorsal part of mesepisternum, shape of the serrulae (Figs 29 , 30 ), and in the morphology of the valvulae 3, which in Pampsilota tsavoensis are conspicuously divergent in dorsal view, with distinct denticles on the interior surface (Fig. 28 ), whereas in Pampsilota dahomeyanus the valvulae 3 do not diverge distally, and are without denticles (Fig. 16 ). Pampsilota nigeriae , of which only a single male is known, differs from Pampsilota tsavoensis in its predominantly yellow antenna and the bicoloured stigma.

Figures

Figure 37. Distribution map for Pampsilota leleupi, Pampsilota luederitzensis, Pampsilota nigeriae, Pampsilota tsavoensis, and Pampsilota zebra.

Figures 27 - 30. Pampsilota tsavoensis: 27. Valvulae 3 (lateral aspect); 28. Valvulae 3 (dorsal aspect); 29. Lancet; 30. Serrulae 10 - 11.

Figures 66 - 71. Pampsilota tsavoensis ♀ (HT), dorsal / lateral. 68 - 71. Pampsilota zebra. 68 - 69 ♀ (HT), dorsal / lateral; 70 - 71. ♂ (PT), dorsal / lateral. Scale bars = 1 mm.

Figures 15 - 19. Pampsilota dahomeyanus: 15. Valvulae 3 (lateral aspect); 16. Valvulae 3 (dorsal aspect); 17. Lancet; 18. Serrulae 10 - 11; 19. Penis valve (left, lateral aspect).