Clavipanurgus gusenleitneri, Patiny, Sèbastien, 2004

Patiny, Sèbastien, 2004, Two new panurgine bee (Hymenoptera: Andrenidae) species from the Near­ and Middle East, Zootaxa 715, pp. 1-7 : 2-4

Clavipanurgus gusenleitneri sp.nov.

Type material. — HOLOTYPE 1 male and 6 PARATYPES (OberÖsterreichisches Landesmuseum (OÖL), Linz, Austria).

Locus typicus and original labelling. 80km O [East].Palmyra. HOLOTYPE: Syr. 22­ 4­1992 80km O.Palmyra 450m K.WARNCKE. PARATYPE: Syr. 22­4­1992 80km O.Palmyra 450m K.WARNCKE; 4 females. Syr. 21­4­1992 80km O.Palmyra 450m K.WARNCKE; 2 males.

Etymology. — The species is dedicated to Mag. Fritz GUSENLEITNER, collections curator in the OÖL.

Diagnosis. — Small species (L = 6–7mm). Antennae dark in specimens of both sexes; reddish­brown in the females; yellowish on the ventral face. In males, the A13 (13th antenna segment) slightly enlarged ventrally. Male clypeus yellow; also partly so coloured in females. Labrum darker. Legs yellow beyond the femur apex. Pleurae, propodeum and terga finely sculptured, more densely in males. Mesonotum weakly punctate. Pilosity whitish, sparse, more abundant in males.

Females: Head. Face shorter than wide (L/l: 0.86). Cuticle black, weakly punctate, smooth and shiny between punctures. Cuticle between lateral ocellus and inner margin of eyes densely and finely punctured. Clypeus yellowish from median part to apex; punctuation weak, median part smooth. Labrum and labral lamella yellow. Labral lamella nearly elliptical with a median depression. Mandibles reddish. Galea covering only the proximal part of the glossa. Maxillary and labial palpi longer than glossa. Only first segment of the labial palpus elongated. Antennae reddish­brown, the ventral side yellow. Foveae faciales regularly elliptical, long axis parallel to the inner eyes margin. Facial pilosity sparse, whitish. Mesosoma. Pronotal posterior margin enlarged; the cuticle not punctured, finely sculptured, weakly shiny. Mesopleurae with wide superficial punctures, the cuticle between them finely sculptured. Pleurae and propodeum densely sculptured, matte. Mesonotum finely sculptured and punctured along its anterior margin; cuticle between punctures smooth and shiny on median part of mesonotum. Scutellum and postscutellum densely and finely sculptured. Wings veins yellowish. Legs yellow beyond femoral apex; pilosity whitish. Metasoma. Terga dark, the apical margin discoloured. T1–2 (terga 1 and 2) proximal part strongly and densely sculptured, matte. T3–5 weaker sculptured and finely punctured. Density of punctures decreasing from proximal parts of terga to apices. Sterna densely punctured. S4–5 (sterna 4 and 5) with a distinct hair fringe. Metasomal pilosity very sparse, mainly developed on the anal fringe; median part of anal fringe yellowish, whitish laterally.

Males: Head. Face shorter than wide (L/l = 0,79). Cuticle black, finely and densely punctate and sculptured; the head dorsal part, matte. Clypeus yellow with sparse punctures. Labrum and labral lamella as in females, yellow. Mandibles dark with a short proximal yellow mark. Mouthparts as in females. Antennae dark, the antennal segments ventrally notably convex. A13 with a distinct ventral enlargement; not compressed as in certain other Clavipanurgus . Foveae faciales short, only developed along the dorsal part of the inner margin of eyes. Pilosity whitish, more abundant than in females. Mesosoma. Pronotum, pleurae, propodeum and postscutellum finely sculptured, matte. Mesopleurae strongly punctate. Mesonotum finely and irregularly punctate; cuticle between punctures smooth and shiny. Wings veins partly discoloured as in females. Legs yellow beyond femoral apex. Mesosomal and leg pilosity whitish, longer and more abundant than in females. Metasoma. T1–3 strongly sculptured, matte. T4–6 apical margin with hair fringes, increasing in density from T4 to T6. Sterna sculptured, weakly shiny; S4–5 denser punctate. S4–5 with narrow hairs fringes. T7 with a median yellow mark. S6 regularly punctate, ending in 2 weakly emarginate subelliptical processes. S8 apex forming a large rounded surface. S8 yellowish. Genital structures ( Fig. 1 ). Gonocoxites globular, finely sculptured and weakly shiny. Gonostyli short and curved medially, without notable enlargement. Penis valves strong, hooked, laterally compressed.

Discussion. — It was proposed ( Patiny, 2003), that Clavipanurgus can be subdivided in several species groups. Two are monophyletic and together constitute the species characterized by notably derived structures of the last terga, sterna and of the genital parts. A third species group is composed of species displaying few derived characters. The monophyly of this group was not actually established. On the base of the previous description, one can consider that Clavipanurgus gusenleitneri is morphologically close to these latter species. Indeed, C. gusenleitneri displays the same kind of slightly enlarged S8 apex, the small and weakly differentiated gonostyli. These characters were also observed in the 3 other species of this group: C.desertus ( Warncke, 1987) , C.impressus ( Warncke, 1972) and C. punctiventris (Morawitz, 1876) .

From the biogeographic point of view, one can underline that C.desertus is endemic in Morocco, while C.impressus , C.punctiventris and C.gusenleitneri range along the Western part of the Arabian Peninsula.

Figures

FIGURE 1: Clavipanurgus gusenleitneri genitalia (right part in dorsal view). Scale = 0.17 mm