Astata stevensoni Arnold, 1924

Jacobs, Hans-Joachim, 2023, Astata Latreille, 1796 (Hymenoptera, Astatidae) from Africa, south of the Sahara, Contributions to Entomology 73 (2), pp. 251-267 : 251

Astata stevensoni Arnold, 1924

Type.

♂ ♀ syntypes, Zimbabwe, Bulawayo (SAM) .

Material.

No material examined.

Description male

(after Arnold 1924). Habitus. Body length 11 mm. Head. Black. Frons dull, closely coriaceous punctate. Middle clypeal lobe rectangular, front margin slightly convex. Face densely punctate, dull. Antenna. Black. Antennomeres starting from V compressed and widened. Thorax. Black. Pronotal collar finely and sparsely punctate. Mesoscutum dull, closely transverse striated, except posterior half of middle area. Mesoscutellum shiny with few large punctures, laterally dull with close punctation. Mesopleuron coarsely and closely reticulate, ventrally with strong punctures confluent into striae. Wings. Fuscous-hyaline, apically darker. Veins black, pterostigma brown. Legs. Coxae, trochanters and femora black, hindfemur with red apex, tibiae and tarsi red. Propodeum. Black. Dorsal surface evenly and widely reticulate-rugose. Lateral and posterior surfaces more unevenly and coarsely reticulate than dorsum, with white setae. Metasoma. Reddish-brown, posterior margins of terga III-VI narrowly testaceous; basal two-thirds of tergum I black. Tergum I and base of II with shallow punctures, the remaining terga microscopically rugose. Sterna I-II with thin pale setae. Posterior margins of sterna III-VI with short black bristles. Pygidial plate triangular, apically rounded, with few longitudinal striae.

Description female

(after Arnold 1924). Habitus. Body length 11.5 mm. Head. Black. Mandible black, medially red. Middle clypeal lobe bluntly tridentate apically. Frons finely and shallow punctate, moderately shiny. Vertex shiny, sparsely and finely punctate. Antenna. Black. Thorax. Black. Mesoscutum dull and closely transverse striated-punctate, except for a shiny median area posteriorly. Mesoscutellum shiny with few large punctures, laterally dull with close punctation. Mesopleuron coarsely and closely reticulate, strongly striated-punctate ventrally. Wings. Forewing fuscous-hyaline, apically darker. Veins black, pterostigma brown. Legs. Ferruginous; coxae, trochanters and proximal half of forefemur black. Propodeum. Black. Dorsal surface evenly and widely reticulate-rugose. Lateral and posterior surface more unevenly and coarsely reticulate than dorsum, with white setae. Metasoma. Ferruginous. Terga shiny, I and V with some large punctures. Sterna I-II with yellowish setae, the apical margins of remaining sterna with short black bristles. Pygidial plate narrow, microscopically reticulated-punctate, lateral margins with strong and curved dark bristles (Fig. 37 ).

Figures

Figures 34 - 46. 34 - 36. A. rufoatra sp. nov. male holotype: 34. Head frontal; 35. Clypeus; 36. Antenna. 37. A. stevensoni female: Pygidial plate (after Arnold 1924). 38. A. tropicalis female: Pygidial plate (after Arnold 1924). 39 - 42. A. tropicana sp. nov. male holotype: 39. Habitus dorsal; 40. Antenna; 41. Mesoscutum; 42. Propodeum. 43 - 46. A. tropicana sp. nov. male paratype: 43. Habitus dorsal; 44. Habitus lateral; 45. Mesopleuron; 46. Propodeum.