Andrena (Brachyandrena) miegiella Dours, 1873

Ariana, Ardeshir, Scheuchl, Erwin, Tadauchi, Osamu & Gusenleitner, Fritz, 2009, A taxonomic revision of the subgenus Andrena (Brachyandrena) (Hymenoptera: Andrenidae), Zootaxa 2281, pp. 21-39 : 23-26

Andrena (Brachyandrena) miegiella Dours, 1873

( Figs. 2 B, 3B, 4)

Andrena Miegiella Dours, 1873: 276 (female).

Type location: Spain ("Esp."). Type depository: destroyed or in the Muséum National d'Histoire Naturelle, Paris, France.

Andrena Lojaconi Destefani, 1889: 206 –207 (female). Type location: Sicily, Italy ("provincia di Catania"). Type depository: type probably destroyed.

Andrena tingitana Pérez, 1895: 48 (female). Type location: Morocco (" Tanger "). Type depository: Muséum National d'Histoire Naturelle, Paris, France (lectotype).

Female [ Algeria, vi.1997 (Ammi Moussa), det. Dr. K. Warncke]. BL = 7.5 mm, WL = 5.8 mm.

Color. Flagellum uniformly reddish brown; mandible with apical half reddened; wing membrane subhyaline; veins and pterostigma reddish brown; posterior part of tegula translucent, reddish brown, anterior part black; tarsomeres, reddish brown; the rest of body black.

Pubescence. Hairs on head and thorax short, not dense; those on clypeus 300–400µm long, dull white; those on antennal area of face dense, dull white; those on vertex 250–300µm, yellowish; those on genal area short (100–200 µm), yellowish; facial fovea brown. Hairs on mesoscutum and scutellum short (200–300µm), tawny, longer peripherally; those on mesepisternum longer (300–500µm), yellowish; propodeal corbicula well developed, with pale yellowish long plumose dorsal fringes, internal area with simple hairs, without anterior fringes; trochanteral flocculus perfect, white; femoral flocculus perfect, dull white; tibial scopa relatively short, with more or less loose simple hairs; dull white. Hairs on metasomal terga scanty, T1–2 with broadly incomplete hair bands, T3–4 with complete whitish hair bands. Caudal fimbria brownish, S2–5 with whitish short subapical fimbriae.

Structure. Head: HL/HW = 0.8, HW:MsW:MtW = 1.1:1:1.1. Vertex narrow, as wide as ocellar diameter, densely punctate; surface above compound eyes with dense punctures without interval area between them; OOD:POD:OCD = 3:2:1; FL1 = FL2+FL3, FL2 = FL3; inner margin of eyes subparallel; facial fovea in upper part occupying 1/2 of distance between compound eye and lateral ocellus, not exceeding the lower level of antennal socket, FVL = 0.8 mm, FVW = 0.3 mm, facial quadrangle wider than long (nearly 1.1:1). Face above antennal fossae reticulate without longitudinal rugulae, interrugal space smooth and shiny. Clypeus slightly convex, with slanting shallow PP (Pd = 30 µm), IS = 0.1, without impunctate median line, shiny and smooth; CPL = 0.8 mm. Process of labrum short, nearly pointed, shiny; lower paraocular area with very dense irregular, coarse PP (Pd = 55 µm), IS<0.1. Malar space linear. Genal area narrower than eye, (2:2.5), surface smooth and shiny with very dense and irregular, nearly large PP (Pd = 30 µm), IS<0.1 near eye.

Mesosoma: Pronotum without humeral angle, with weak lateral ridge and dorsolateral suture, surface tessellate with scattered PP. Mesoscutum and scutellum smooth and shiny with dense PP (Pd = 10 µm), IS<0.1. Propodeal enclosure medium sized, not well indicated by lateral boundary line, strongly rugose with posterior carina, interrugal surface smooth and shiny, dorsolateral area to enclosure similar but with weaker rugulae. Mesepisternum with dense PP, anterior part reticulate, posterior part with coarse PP, surface smooth and shiny; anterior part of tegula smooth, with PP.

Metasoma: Metasomal terga with dense, small PP (Pd = 20 µm), IS<0.1, smooth and shiny; posterior depression of T2–4 distinct, with smaller PP; pygidial plate V-shaped, with microscopic PP, without internal raised area; S2–5 smooth and shiny with fine and deep PP.

Male [ Spain, Spanien Loja (=Loja city, Granada Prov.), 09.v.1957 (W. Gross)]: BL = 5.7 mm, WL = 5.2 mm.

Color. Flagellum reddish brown; mandible nearly black; wing membrane as in female, veins and pterostigma dark brown; posterior part of tegula translucent, brown, anterior part black; the rest of body black.

Pubescence. Hairs on head and thorax and antennal area as in female; those on clypeus 100–200 µm, yellowish; those on vertex pale yellowish, short (300 µm); those on genal area yellowish; hairs on mesoscutum and scutellum short 400 µm, yellowish, not scale-like; those on mesepisternum dull whitish and relatively longer. Hairs on metasomal terga and sterna as in female.

Structure. Head: HL/HW = 0.8, HW:MsW:MtW = 8:7:7. Vertex as in female; OOD:POD:OCD = 4:3:1; FL1<FL2+FL3, FL2<FL3; inner margins of eyes parallel; facial quadrangle quadrate. Face above antennal fossae as in female. Clypeus as in female but with impunctate median line; CPL = 0.7 mm. Process of labrum quadrangle, apically rounded and weakly emarginate; lower paraocular area with very dense, irregular PP (Pd = 10–50 µm), IS<0.1. Malar space as in female. GW<EW = 2:3, surface with dense PP (Pd = 10 µm), IS<0.1 near eye. Mandibles not crossing at rest.

Mesosoma: Pronotum, Mesoscutum , scutellum, Mesepisternum and tegula as in female. Propodeal enclosure small, not indicated by boundary line, strongly rugose with carina, interrugal surface smooth and shiny.

Metasoma: Metasomal terga and sterna as in female; posterior margins of terga narrowly impunctate; genitalia and S7–8 similar to A. alisadra sp. n. as shown in Fig. 8 .

Specimens examined: 1 female, Algeria, vi.1997 (Ammi Moussa), det. Dr. K. Warncke; 1 male, Sardinien (= Sardinia), Italy, 25.iv.1960 (Nora Pula), leg. E. Priesner; 2 females, Italy, Sicily, 870 m, Randazzo-Lago di Gurrida, 11.vi.1999 (B. Merz); 1 female, Italy, Italia, Napoli (=Naples), 24.vi.1965 (W. Schläfle); 1 female, Italy, Sizilien, Linguaglossa, ca. 40 km N. Catania (= Catania Prov.), 13–25.vi.1999 (Tischendorf); 1 female, Italy, Toscana, Grosseto, Principina a Mare, 09.vi.1991 (E. Scheuchl); 1 male, Malta, Malta, St. Paul’s Bay, Bugibba town, 07.vi.1993 (E. Scheuchl); 1 female, Spain, Chiclana, Chiclana de la Frontera/Provinz Cádiz (= Cádiz Province), 9.v.1957 (W. Gross); 3 males, Spain, Spanien Loja (= Loja city, Granada Prov.), 09.v.1957 (W. Gross).

Variation. This species shows weak differences in coloration of flagellum, particularly from flagellomeres 4 to 12. Sculpture of enclosure area and pubescence of body show weak variation, too.

Remarks. This new species is very similar to Andrena alisadra sp. n but is separated by small and pointed shape of the process of labrum in the female, the tawny hairs on thorax and denser punctures on the scutellum.

Distribution. Gusenleitner and Schwarz (2002) provide a distribution map for this species.

Figures

FIGURE 8. Male of Andrena alisadra sp. n., male: (A – C) dorsal, lateral, and ventral views of genitalia; (D, E) dorsal and ventral views of S 8; (F) dorsal view of S 7.