Andrena (Ulandrena) biguttata Friese, 1923

Wood, Thomas J., 1942, Revision of the Andrena (Hymenoptera: Andrenidae) fauna of Bulgaria and North Macedonia with description of three new species, Belgian Journal of Entomology 117, pp. 1-39 : 19-20

19. Andrena (Ulandrena) biguttata Friese, 1923

DISTRIBUTION. Bulgaria, Greece, North Macedonia, Turkey, Azerbaijan ( WARNCKE, 1973; GUSENLEITNER & SCHWARZ 2002).

WARNCKE (1966; 1967b; 1973); ATANÁSSOV & VASILEVA (1990, as A. bigguttata [sic]).

MATERIAL EXAMINED. AZERBAIJAN: • 1♀, Ordubad 13 Klzr. (no further information), det. Warncke, OÖLM .

BULGARIA: • 1♀, Balčik [Balchik], vi.1986, leg. J. Halada, OÖLM ; • 1♀, 29.vi.1976, • 1♂, 17.v.1989, both leg. O. Tkalců, OÖLM ; • 3♀, Galata , 21.vi.1977, leg. O. Tkalců, OÖLM ; • 1♂, Kresna , 12.v.1989, leg. Kocourek, OÖLM ; • 3♀, Liljanovo , 300 m, 7.vii.1974, leg. A. Hoffer, OÖLM ; • 7♂, Sandanski , 26–31.v.1967 ; • 11♂, 2♀, 1–8.vi.1967; • 9♂, 6♀, vi.1969; • 1♂, 28.v.1978, all leg. Kocourek, OÖLM ; • 3♀, Sandanski / Liljanovo , 2.vi.1989, leg. B. & O. Tkalců, OÖLM ; • 1♀, Simitli , 15.vi.1987, leg. J. Halada, OÖLM ; • 1♂, Slanĉev Brjag [Sunny Beach], 5.vi.1977, leg. Z. Pédr, OÖLM ; • 1♀, Stara Kresna , 20.vi.1987, leg. J. Halada, OÖLM ; • 1♀, Varna Galata , 19.v.1989, leg. O. Tkalců.

NORTH MACEDONIA: • 1♀, Ohrid, 29.v.–10.vi.1972, det. Warncke, leg. H. Teunissen , OÖLM; • 2♂, 1♀, St. Dorjan , 4.vi.1974, leg. M. Hladil , OÖLM.

TURKEY: • 1♀, Gürün , 130 km S Sivas, 11.vi.2001, leg. K. Deneš, OÖLM (det. A. oulskii Radoszkowski, 1867 by E. Scheuchl, 2002) .

NOTE. The nomenclature surrounding this taxon has been greatly confused, specifically the concerning the application of the name A. oulskii . When writing about A. ( Truncandrena ) species, SCHUBERTH et al. (2001) commented that Warncke had incorrectly interpreted the taxon A. oulskii as a Truncandrena based on examination of female material in Berlin (listed as the type depository, WARNCKE 1967a; GUSENLEITNER & SCHWARZ, 2002). They argue that the specimen examined by Warncke (even though Warncke did not actually give details of which specimen he examined in his 1967a paper) was collected in Afghanistan (not the locus typicus of Azerbaijan as stated by Radoszkowski) and corresponds to A. combusta Morawitz, 1876 , which is a Truncandrena species. They state that the true type of A. oulskii was found (by W. Grünwaldt) in the Natural History Museum, London, and is a Ulandrena, therefore making A. oulskii the priority name for the taxon found in Bulgaria (see also Note on these taxa in KUHLMANN et al., 2021).

However, this situation is unsatisfactory. In the original description of A. oulskii ( RADOSZKOWSKI, 1867) , it is noted that material was collected in Baku in modern-day Azerbaijan. Examination of material in the Museum für Naturkunde in Berlin shows the presence of a specimen of A. oulskii from Baku from the Radoszkowski Collection ( Figs 37– 40 ). No specimen from Afghanistan putatively identified as A. oulskii could be found in the collection. Though the specimen from Baku does not bear a type label, it conforms perfectly to Radoszkowski’s original description, and clearly belongs to the subgenus Truncandrena , not Ulandrena, lacking the clearly broadened inner hind tibial spur of the latter subgenus. Importantly, RADOSZKOWSKI (1867) writes that A. oulskii has “ Les pieds noirs, les jambes et les tarses ainsi que les cuisses des pieds postérieurs, ferrugineux; les pieds couverts de poils jaune doré ”. This categorically cannot correspond to the Ulandrena taxon described by Friese and found in Bulgaria, because it has entirely black legs. It does however clearly correspond to the specimen from Baku ( Fig. 40 ). Based on this evidence, the position is taken that the interpretation of Warncke was correct, and that the Ulandrena displaying a red-marked abdomen in the female sex that is present in Bulgaria should be correctly referred to as A. biguttata Friese.

OTHER SPECIES EXAMINED: Andrena oulskii : AZERBAIJAN: • 1♀, Baku (undated) , ZMHB (illustrated Figs 37–40 ).

Figures

Figs 37–40. Andrena oulskii Radoszkowski, 1867, female. 37, specimen labels. 38, head, frontal view. 39, habitus, dorsal view. 40, lateral view. © Thomas J. Wood.