Pampsilota nigeriae 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 nigeriae Liston & Koch sp. n.

Male.

Figures 26 , 64-65

Head black; labrum yellow; antenna light brown with blackish apex and sharply compressed longitudinal carina. Thorax yellow with following black: mesoscutum except for a small median spot between lateral lobes on posterior margin, mesoscutellum and metascutellum. Legs yellow; metatibia and metatarsomeres moderately broadly blackish-ringed apically, tarsomeres 3/4 nearly entirely black. Wings including intercostal area slightly infuscate; substigmal spot weakly developed, stigma bicoloured with dirty whitish base and blackish apical half, costa whitish, subcosta except for apex adjacent to stigma and rest of venation blackish. Abdomen yellow.

Head slightly narrowed behind eyes. Antenna 1.6 × as long as maximum head width; flagellum very slightly enlarged towards apex, triangular in cross section, scarcely flattened apically, interior surface with sharply compressed longitudinal carina, other longitudinal carinae weakly compressed. Eyes very slightly converging towards clypeus. Anterior margin of clypeus semi-circularly emarginate over its entire width; supraclypeal area very slightly rounded, protruding up to ventral limit of interantennal carinae, interantennal carinae obtusely ridged, converging below, extending to a little below ventral margin of torulus. Frons, supraclypeal area and clypeus densely punctate, weakly shiny, vertex and gena scattered micropunctate, shiny; pubescence whitish. Mesoscutum moderately densely punctate, shiny; pubescence similar to that on head. Abdomen smooth and shiny. Penis valve: Fig. 26 .

Length: 7.3 mm.

Female.

Unknown.

Type material.

Holotype: ♂. Labels: "Nigeria, 14.V.2011, 26 km SEE Abuja, N 09°06 ’/E07°45’, 400 m, J. Halada leg."; " DEI-GISHym 21248"; "Holotype, Pampsilota nigeriae n. sp. ♂, det.: F. Koch, 2016" [red] ( OLML).

Etymology.

The new species is named after Nigeria, the country in which the holotype was collected.

Distribution.

Nigeria (Fig. 37 ).

Diagnosis.

Pampsilota nigeriae adults resemble those of Pampsilota dahomeyanus and Pampsilota tsavoensis in the mostly yellow colour of the abdomen and thorax underside, but differs from both in its predominantly yellow antenna and the bicoloured stigma. The penis valves of Pampsilota dahomeyanus (Fig. 19 ) and Pampsilota nigeriae (Fig. 26 ) show differences. Additionally, the dorsal part of mesepisternum is blackish in Pampsilota tsavoensis , but yellow in Pampsilota nigeriae .

Figures

Figure 26. Pampsilota nigeriae: Penis valve (left, lateral aspect).

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

Figures 60 - 65. Pampsilota leleupi ♂ (HT), dorsal / lateral. 62 - 63. Pampsilota luederitzensis ♂ (PT), dorsal / lateral. 64 - 65. Pampsilota nigeriae ♂ (HT), 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).