Andrena orientalis, Kratochwil, 2015

Kratochwil, Anselm, 2015, Revision of the Andrena (Micrandrena) tiaretta group: redescription of A. tiaretta WARNCKE, 1974 and description of two new species (A. cyrenaica nov. sp. and A. orientalis nov. sp.) demarcating the central and eastern part of the range (Libya, Israel, Syria), Linzer biologische Beiträge 47 (2), pp. 1403-1437 : 1418

Andrena orientalis nov.sp. ( Israel, Syria): differential diagnosis to A. tiaretta s.str.

C o l o u r. Only the following features in the specimens of Israel are different to the specimens of Spain, Morocco and Algeria ( A. tiaretta s.str.): Head (Fig. 19a): flagellomeres 3-10: brown or light brown in contrast to A. tiaretta s.str. with only brown coloured flagellomeres. Mesosoma (Fig. 19b): black or reddish-brown in contrast to A. tiaretta s.str. with only black coloured thorax; femur, tibia and basitarsus constantly reddish-brown in contrast to A. tiaretta s.str. with reddish-brown or pars parte reddishbrown femur, tibia and basitarsus; wings very light toned ( A. tiaretta s.str.: light toned), veins yellowish or reddish-brown ( A. tiaretta s.str.: reddish-brown).

P u b e s c e n c e.Head (Fig. 19a): paraoccular area with whitish hairs in contrast to A. tiaretta s.str. with whitish and as a rule with some brown hairs; scapus and antennal socket with whitish hairs ( A. tiaretta s.str.: as a rule whitish-yellowish hairs); genal area in all cases with whitish hairs ( A. tiaretta s.str.: as a rule brownish hairs upper side, whitish hairs downwards); vertex with some long yellowish hairs ( A. tiaretta s.str.: additionally with slightly reddish hairs). Metasoma (Fig. 22a): scarcely hairy, T2-4 as a rule with distinct whitish hair bands ( A. tiaretta s.str.: T2-3 with lateral longer whitish hairs, but no distinct hair bands).

S t r u c t u r e. Genital (Fig. 22b): gonocoxit inwardly extending, more or less linear and without dorsal lobus.