Dufourea (Flavodufourea) ulkenkalkana, Patiny, Sebastien, 2003

Patiny, Sebastien, 2003, Revision of the subgenus Dufourea (Flavodufourea) Ebmer, 1984 (Hymenoptera, Halictidae, Rophitinae) and description of a new species D. (Flavodufourea) ulkenkalkana sp. nov. from Kazakhstan, Zootaxa 255, pp. 1-8 : 3-4

Dufourea (Flavodufourea) ulkenkalkana sp.nov.

Type material. One male holotype. Genitalia dissected. One male and one female paratypes.

Type locality and original labelling. Holotype. Kazachst. m.­or. Ili fl. 20.5.1990. Ulkenkalkan reserv. Beneš + Voříšek lg. Paratypes. Idem Holotype.

Description

Diagnosis. Females. Tegument black. Apical depressions of tergites transparent, the margin somewhat discoloured, reddish­yellow. Cuticule very smooth and shiny, sparsely punctured, more regularly on tergites proximal part. Face, posterior margin of pronotum, lateral margins of mesonotum, scutellum and propodeum densely covered with long whitish pilosity. Anterior and posterior (from T3) parts of tergites also covered with hairs. Males. A13 short and hooked as in D.flavicornis . Gena narrow ( Figs. 2a, b ). Face covered with dense snow­white pilosity. Tergites with few hairs, except on apical depression; apical depression transparent. Mesosoma and metasoma with only few hairs. Tarsus yellow.

Females. Head: Face shorter than wide (length/width = 3.5/5); the compound eyes inner margins converging a bit ventrally. Cuticule smooth and strongly shiny. The whole face below the vertex finely and sparsely punctured. The frontal line strongly developed, smooth and shiny. Clypeus convex; finely punctured on its proximal part, the distal half with only some wider and deeper punctures. Labrum shorter than wide (l/w = 1/3); labral lamella well developed, nearly as large as labrum itself, smooth and shiny. Mouthparts short, no longer than the distance between clypeus distal edge and frons. Galea nearly half as long as glossa. Maxillary palpus constituted by 6 short undifferentiated articles. Labial palpus short, 4­segmented; the 2 proximal broadened distally. Scape dark and slender, bearing some hairs. Flagellum a bit more than twice longer than scape (flagellum/scape = 6.2/3). Flagellum ventral part yellow, dorsal part dark. Vertex posterior margin and genae densely covered with whitish pilosity. Face below the median ocellus densely covered with long snow­white pilosity. Mesosoma: Pronotum black, nearly entirely smooth; distal margin with a dense fringe of whitish hairs. The cuticule somewhat sculptured under the hairs. Mesonotum smooth and shiny, with only some fine and sparse punctures. Mesonotum periphery bearing some pilosity. Scutellum and poscutellum sculpture and pilosity similar to these of mesonotum. Mesopleurae finely and regularly punctured, covered with some long pilosity. Propodeum lateral and distal parts densely sculptured, nearly mat, densely covered with whitish pilosity. Propodeum proximal part bare, its distal periphery smooth and shiny; its inner area finely and densely sculptured. Legs dark, bearing whitish pilosity. Wings crystal clear; most veins yellowish, only the subcosta dark. Metasoma: Tergites proximal part dark, finely and densely punctured on T1­3, more irregularly on T4. Distal part transparent. Long whitish pilosity well developed on the tergites proximal and lateral part as well as on the T3­4 margins. Anal fringe whitish yellow. Sterna cuticule reddish, superficially sculptured, few shiny and bearing few hairs.

Males. Head: Face shorter than wide (l/w = 7.5/9.5); densely covered with white pilosity. Face upper part regularly punctured, the cuticule between points smooth and shiny. Clypeus entirely dissimulated under hairs; the cuticule sculptured under hairs. Labrum short with a dark and shiny labral lamella. Mandibules black. Mouthparts as in females. Scape dark, smooth and shiny; shorter than the two first flagellar segments together. Pedicel black. Flagellum mostly yellow, only the dorsal part being dark. Flagellar articles longer than wide. 13th flagellar segment briefly backward hooked at the top. Head abundantly covered with whitish pilosity. Mesosoma: Pronotum black smooth and shiny; more strongly sculptured along its posterior margin. Pilosity constituted of long hairs restricted to the pronotum posterior margin. Mesonotum, scutellum and postscutellum finely and sparsely punctured; the cuticule black, smooth and shiny. Pilosity restricted to the periphery of these sclerites. Mesopleurae regularly punctured, bearing the same kind of pilosity that mesonotum and scutellum. Propodeum like by female, the distal part densely sculptured as well as the propodeal area, these two parts separated one to another by a smoother line. Legs dark, bearing white hairs, the tarsus and basitarsus yellowish. Wings crystal clear; the veins yellowish, the subcostal excepted. Metasoma: Tergites densely punctured on the proximal part. Tergites distal margin shorter than the proximal part (nearly 1/3), entirely smooth and transparent. Pilosity lesser abundant than by females, restricted to the tergites margins. Sternites, reddish, densely sculptured, mat, bearing few hairs. St6 like by D.flavicornis but wider, nearly as long as wide. St6 median part strongly and abruptly elevated; distal part ended in four small teeth ( Figs. 3a,b ). St7 forming two wide apico­lateral processes, tapered at their top in two distal spines ( Figs. 1a,b ). St8 apodeme indented. The St8 distal part forms a long and slender curve process, ended in a subtriangular area. Genital structures ( Figs. 4a,b ): Gonobases and gonocoxites developed as by D.flavicornis . Gonostyli short indented on their outer side, forming a short tapered distal spine. Penis valves short linear without inner basal tooth as in the previously described species.

Figures

FIGURE 1: a, D. flavicornis St 7 (scale = 0.5 mm, same scale for all figures); b, D. ulkenkalkana, St 7.

FIGURE 2: a, D. flavicornis, head profile; b, D. ulkenkalkana, head profile.

FIGURE 3: a, D. flavicornis, St 6 ventral right half; b, D. ulkenkalkana, St 6 ventral right half.

FIGURE 4: a, D. flavicornis, genital capsule dorsal; b, D. ulkenkalkana, genital capsule dorsal.