Hylaeus (Deranchylaeus) promontorii Meade-Waldo, 1923

Dathe, Holger H., 2023, New insights into the taxonomy of the Hylaeus xanthostoma complex and further additions to the African Hylaeus fauna (Hymenoptera, Anthophila, Colletidae), Contributions to Entomology 73 (1), pp. 67-93 : 67

Hylaeus (Deranchylaeus) promontorii Meade-Waldo, 1923

Prosopis longula Friese, 1913: 583. 1 ♂, Rhodesia [Zimbabwe]: Bulawayo. Holotype ZMB Berlin.

Hylaeus (Deranchylaeus) longulus (Friese): Bridwell (1919: 138, 146-147).

Hylaeus promontorii Meade-Waldo, 1923: nomen novum for Prosopis longula Friese, 1913 not Prosopis longula Pérez, 1903.

Hylaeus (Deranchylaeus) promontorii Meade-Waldo: Dathe (2014: 63).

Diagnosis.

The female is characterised by an orange mask restricted to the clypeus and lower face; scapes and legs are largely black. Apart from colour characters, the species differs from H. venustus and H. portokalius by its shorter head and stronger punctation of the mesosoma.

Redescription.

Female. N = 10. Total length 4.4-5.2 (4.77) mm, wing length 2.9-3.8 (3.41) mm.

Head outline (Fig. 48 ) nearly circular, HL:HW 0.99-1.03 (1.01), UFW:LFW 1.51-1.58 (1.55); hairless. Scapes long and slender, black, flagella black above, yellow below. Foveae faciales short. Colouration black, only clypeus and adjacent parts of lower face orange, especially paraocular areae and genae below, malae, labrum and mandibles. Clypeus CL:CW 1.13-1.23 (1.18), BW:DO 1.35-1.59 (1.47); surface longitudinally wavy-grooved with relatively large shallow punctate pits, silky-glossy. Supraclypeal area densely coarsely punctate; with median furrow; broad above, gradually merging into frons. Frons with strong subcontiguous rows of dots, surface not very shiny. Vertex convex, more finely, shallowly and diffusely punctate, dull. Facial sides evenly convex, with angular paraocular margin. Genae bevelled, longitudinally wrinkled and punctate. Malae very narrow. Occiput rounded.

Mesosoma (Fig. 54 ) normal, black, ventrally and laterally with very short sparse white pubescence. White markings only on tegulae. Pronotum with sharp anterior edge, sides protruding angularly. Mesonotum, mesopleura and scutellum dull, shagreen, with moderate sparse punctation. Omauli rounded. Legs black, only terminal tarsi brown and anterior tibiae with yellow stripe. Wings clear, with stigma and veins black. Propodeum sharp-edged, medial area sloping, basally with fine, distally with coarse sharp-edged meshes, interspaces shiny. Terminal area circular with sharp bar, medial groove broad, smooth, dully sculptured above. Lateral areae sharply delimited posteriorly and laterally, with white pinnae.

Metasoma (Fig. 60 ) spindle-shaped, black. Tergum 1 shagreen, the very scattered minute punctation barely visible in sculpture; following terga equally finely sculptured, punctation disappearing; depressions poorly defined. With narrow white lateral fringes. Terminal fringe pale.

Distribution.

South Africa, Zimbabwe, DR Congo, Nigeria, Kenya, Mozambique. - New records: ETHIOPIA: 1 ♀, Sidamo prov., 50 km NE Yabello, 1540 m alt., 22.IV.2007; 2 ♀♀, Shewa prov., lake Lango, 29-30.IV.2007; 2 ♀♀, 20 km SE Konso, 05°15'N, 37°32'E, 850 m alt., 11.-13.V.2015; J. Halada leg. - TANZANIA: 7 ♂♂, 5 ♀♀, Morogoro prov., 50 km SW Morogoro, 06°50'S, 37°15'E, 450 m alt., 12.I.2007; 2 ♀♀, Shinyanga prov., 10 km NWW Kahama, 03°25'S, 31°47'E, 1200 m alt., 24.XII.2006; J. Halada leg. - MOZAMBIQUE: 1 ♂, Manicata prov., 70 km SE Chimoio, 23-24.XII.2003; J. Halada leg.; 5 ♂♂, 4 ♀♀, 8 km SW Vila Franca Save, 21.203°S, 34.507°E, 24.II.2020; 1 ♂, 15 km W Boane, 26.050°S, 32.229°E, 27.II.2020, M. Halada leg. - SOUTH AFRICA: 9 ♂♂, 4 ♀♀, KwaZulu-Natal, Hluhluwe 4 km S, 28°03'S, 32°16'E, 120 m alt., 20.XII.2019, J. Halada leg.; 1 ♀ Eastern Cape, Graeff - Reinet - Nieu - Bethesda, 28.I.2001; 1 ♀, Maputoland, SW of Emanguzi, 29.I.2003, M. Snižek leg. - NAMIBIA: 2 ♂♂, Otjozondjupa, 15 km NE Okahandja, 21°49'S, 16°58'E, 1480 m alt., 13.03.2014; 1 ♂, Kunene, 50 km NEE Khorixas, 20°51'S, 15°24'E, 1133 m alt., 24.III.2017; 2 ♂♂, Omaheke, 35 km W Gobabis, 22°23'S, 18°39'E, 1483 m alt., 07.IV.2017; 1 ♂, Khomas, 60 km NW Dordabis, 22°37'S, 18°07'E, 1500 m alt., 07.IV.2017; all J. Halada leg. - ZAMBIA NW: 3 ♂♂, 1 ♀, 40 km W Chingola, 12°27'S, 27°35'E, 1200 m alt., 07.XI.2005; 2 ♂♂, 100 km W Solwezi, 12°13'S, 25°39'E, 1400 m alt., 10.XI.2005; M. Halada leg. - ZIMBABWE: 1 ♂, Bubi env., Bubi river, 08.XII.1998, S. Bečvář et al. leg. All in coll. OLML. First records for Ethiopia, Tanzania, Namibia, Zambia and Zimbabwe.

Remarks.

The data on the female of H. promontorii in Dathe (2014: 63, 18) are at least incomplete, only three specimens were available for study at that time. It therefore seems appropriate to give a more detailed description here.

Figures

Figures 46 - 51. Hylaeus (Deranchylaeus) species, females. Head, frontal view. 46. H. (D.) aurantiacus sp. nov.; 47. H. (D.) xanthostoma (Alfken); 48. H. (D.) promontorii (M. - W.); 49. H. (D.) portokalius sp. nov.; 50. H. (D.) venustus Dathe; 51. H. (D.) jemeniticus sp. nov. Scale bar 0.5 mm.

Figures 52 - 57. Hylaeus (Deranchylaeus) species, females. Mesosoma, dorsal view. 52. H. (D.) aurantiacus sp. nov.; 53. H. (D.) xanthostoma (Alfken); 54. H. (D.) promontorii (M. - W.); 55. H. (D.) portokalius sp. nov.; 56. H. (D.) venustus Dathe; 57. H. (D.) jemeniticus sp. nov. Scale bar 0.5 mm.

Figures 58 - 63. Hylaeus (Deranchylaeus) species, females. Metasoma base, dorsal view. 58. H. (D.) aurantiacus sp. nov.; 59. H. (D.) xanthostoma (Alfken); 60. H. (D.) promontorii (M. - W.); 61. H. (D.) portokalius sp. nov.; 62. H. (D.) venustus Dathe; 63. H. (D.) jemeniticus sp. nov. Scale bar 0.5 mm.