Andrena tiaretta, GUSENLEITNER & SCHWARZ, 2002

Andrena tiaretta View in CoL s.str. ( Spain, Morocco, Algeria)

C o l o u r.Head ( Fig. 18a View Fig ): black; scapus black/brown; flagellomeres 1 and 2 as a rule darker than flagellomeres 3-10, flagellomeres 3-10: dark brown to brown. Mesosoma ( Fig. 18b View Fig ): black; femur, tibia and basitarsus reddish-brown or pars parte reddish-brown, in two cases black (higher variation between specimens of Spain and Algeria; specimens of Morocco consistently reddish-brown); mediotarsi reddish-brown; wings light toned; pterostigma yellowish (two cases reddish-yellowish and one case reddish in specimens of Spain, one case reddish-yellowish concerning an Algerian specimen), pterostigma brown marginated, veins reddish-brown ( Fig. 15a View Fig ). Metasoma ( Fig. 21a View Fig ): T1-5 black, with black to dark reddish-brown depression zone; T6 reddish-brown or T1-T5 depression reddish (higher variation between specimens from Spain and Algeria; specimens of Morocco consistently reddish-brown).

P u b e s c e n c e Head ( Fig. 18a View Fig ): frontview: whitish hairs, paraoccular area with whitish hairs, no or only some brown hairs, hair length different; sideview: paraoculararea with whitish and with or without some brown hairs; clypeus with longer whitish hairs; scapus with long whitish-yellowish ( three specimens with totally white) hairs, no difference between dorsal and ventral site; genal area with light brownish dorsal hairs in specimens from Spain ( one specimen yellowish), light brownish or brown dorsal hairs in specimens from Morocco, brown dorsal hairs in specimens from Algeria (in two specimens white hairs) ; ventral constantly whitish hairs; vertex with some long whitishyellowish, slightly reddish hairs. Mesosoma ( Fig. 18b View Fig ): mesoscutum and scutellum only with some whitish-yellowish hairs intermingled with brown hairs, hairs especially situated in front, laterally yellowish hairs, or totally scattered covered with yellowish hairs; mesepisternum with whitish, pars parte yellowish hairs. Metasoma ( Fig. 21a View Fig ): tergites scarcely hairy, T 2-3 in most of all specimens with lateral longer whitish hairs, no distinct hair bands ( 3 specimens from Spain, Morocco and Algeria with fragmentary whitish hairbands in T2 / T3 ), but hair rows between tergite and tergite depression (hair rows T2 , T3 often fragmentary) ; T5 and T6 with white, slightly yellowish hairs ( one specimen from Spain yellowish) ; sternite 8 with long whitish (in two cases yellowish) hairs at the end.

S t r u c t u r e Head: vertex surface densely sculptured; face above antennal fossae with longitudinal rugulae, interrugal space shiny; inner eye margin converging weakly; clypeus similar to females but in all cases without impunctate median line; labrum process trapezoid, emarginated, ends left and right side slightly thickened. Mesosoma ( Fig. 18b View Fig ): mesoscutum and scutellum similar to female, very scattered punctured, shallow punctures (pd = 0.14-0.28 μm), with developed parapsidal lines; propodeum: strongly rugose primarily in the centre and in the dorsolateral area, no lateral boundary line. Metasoma ( Fig. 21a View Fig ): similar to female, very scattered punctured (pd = 0.14 μm), posterior depression of (T1)T2-T4 not well marked; tergite 1 carinate. Genital ( Fig. 21b View Fig ): penisvalvae slightly vesicularly thickened, ending distal acuminated; gonocoxit inward concave, dorsal lobus well developed.