Andrena (Micrandrena) semilaevis Pérez, 1903

Dardón, María José, Torres, Félix & Ornosa, Concepción, 2014, The subgenus Andrena (Micrandrena) (Hymenoptera: Andrenidae) in the Iberian Peninsula, Zootaxa 3872 (5), pp. 467-497 : 485-486

Andrena (Micrandrena) semilaevis Pérez, 1903

Andrena semilaevis Pérez 1903:89 (Paratype examined) Andrena saundersella Perkins 1914:72

Andrena anthrisci Blüthgen 1925:156 (Holotype examined) Diagnosis. Individuals of this species are recognized by marked marginal zones in the terga, with a microsculpture that is weaker than on the disc, and usually vey glossy. The marginal zones always contrast with the disc, or at least, appear brighter.

Comment. Andrena semilaevis Pérez, 1903 , was described by "the marginal zones of terga... absolutely smooth and very bright," which allows for easy recognition. Later, Perkins (1914) established Andrena saundersella Perkins, 1914 , by "the brilliant and deep marginal zones of T3," but now this species is regarded as a synonym of A. semilaevis . Dylewska (1987) considers Andrena anthrisci Blüthgen, 1925 , a synonym of A. semilaevis , based on the characteristics provided by Blüthgen to differentiate these species with the length of the antennal segment. However, this characteristic is highly variable, and therefore, corresponds to the same species. The latter synonymy has generated debate and, to date, some authors maintain both as valid species (Schmid– Egger & Scheuchl 1997; Gusenleitner & Schwarz 2002; Schwenninger 2009).

The work of Schwenninger (2009), based on the study of females, suggests that both species are valid. It indicates a difference in the depth and microsculpture of the marginal zones. Given this, it should be noted that Blüthgen (1925) has differentiated A. anthrisci and A. semilaevis by only the microsculpture of T1, and he did not appreciate the differences indicated by Schwenninger (2009). This study finds that the intensity of the microsculpture of T1 is a feature that could vary (as seen in Andrena nana (Kirby, 1802)) , and should not be used in the differentiation of species. After the revision of the individuals identified as A. semilaevis and A. anthrisci , both males and females, there were no clear morphological differences for recognizing each species.

Therefore, A. semilaevis and A. anthrisci are apparently the same species, and the synonymy should be maintained, although it would be advisable to use other techniques for a final confirmation.

Specimens examined.

Andrena semilaevis Pérez, 1903

Paratype: France: Royan, 1 ♂, IV-?, OLINZ; Barey or Bares (illegible handwriting), 2 ♀ (1 without gaster), - V-?, OLINZ. Other material: Iberian Peninsula: Spain: Gerona: Canet de Mar, 1 ♂, 27-III-1966, OLINZ; Pirineos, at 8 Km. of Camprodón, 1 ♀, 5-VI-1985, Haeseler leg., OLINZ. Soria: Cidones, 1 ♀, 22-VIII-1990, García, J. leg., MJ. Dardón det., USAL. Portugal: Guarda: Seia: Vale do Rossim, 1 ♀, 24-VI-1987, Torres, F. leg., F. Gusenleitner det., USAL. Unknown Locality: Barés, 1 ♀, undated, Pérez, J. leg., J. Pérez det., MPARIS; undated, 1 ♂, undated, Pérez, J. leg., J. Pérez det., MPARIS. Other localities: Austria: Tirol: Alpbach, 1 ♀, 15-VI-1974, Warncke, K. leg., OLINZ. Montenegro: border with Albania, 1 ♀, 12-VII-?, Penther leg., OLINZ.

Andrena saundersella Perkins, 1914

Germany: Bavaria: Einig a.D. Bay, 1 ♀, 1-VII-1938, Stöckhert leg., OLINZ; Erlangen, 1 ♂, 26-V-1915 / 1 ♂, 7-VI-1928 / 1 ♂, 12-VI-1932, Stöckhert leg., OLINZ; Lechhausen, 1 ♀, 09-VI-1962, Warncke, K. leg., OLINZ; Pappenheim, 1 ♀, 31-V-1929 / 1 ♀, 27-VI-1932 / 1 ♂, 02-VI-1932 / 1 ♀, 1-VII-1932 / 1 ♀, 04-VII-1933 / 2 ♂, 06- VI-1933, Stöckhert leg., OLINZ; Starnberg, 2 ♂, 18-V-1924, Stöckhert leg., OLINZ; Thaldorf Bay, 1 ♀, 8-VI- 1938, Stöckhert leg., OLINZ. Switzerland: Valais: Saas-Fée, 1 ♀, VIII-1912, OLINZ. Unknown Locality: Germany, 1 ♂, 18-V-1912, Stöckhert leg., OLINZ; Kyffh-Geb, 1 ♂, VI-1941, Eigen leg., OLINZ; Pinow i. Pom, 1 ♀, VI-1942, Eigen leg., OLINZ.

Andrena anthrisci Blüthgen, 1925

Holotype: Germany: Turingia: Mühlhausen, 1 ♀, 26-VI-1914, Blüthgen, P. leg., MBERLIN, 050301 scwe288. Other Material: Iberian Peninsula: Spain: Burgos: Burgos, 1 ♀, 26-IV-1961, Exc. R.M.N.H. leg., OLINZ, at 850 masl. Other localities: Germany: Baden-Württemberg: Bischenberg, 1 ♂, 24-V-1936, Klein, M. leg., Stöckhert det., OLINZ; Kehl, 1 ♂, 10-VI-1939, Balles, L. leg., OLINZ. Bavaria: Bavaria, WAG., 1 ♂, 29-VI-1985, Warncke, K.leg., OLINZ; Dachau, 1 ♀ and 1 ♂, 10-VI-1978 / 2 ♀ and 4 ♂, 26.VI.1988 / 1 ♀, 11-VI-1983, Warncke, K.leg., OLINZ; Eining a.D. Bay, 1 ♀, 09-VI-1937 / 1 ♀, 01-VII-1938, Stöckhert leg., OLINZ; Gauting, 1 ♀, 22-VI-1972, Haeselbarth leg., OLINZ; Nord Bayern, Hombürglor?, 1 ♂, 21-VII-1979, Kraus, M. leg., OLINZ; Pappenheim, 1 ♀, 20-VI-1930 / 1 ♂, 14-VI-1932 / 1 ♂, 18-VI-1932 / 1 ♀, 30-VI-1932 / 2 ♂, 04-VI-1933 and 2 ♂, 13-VI-1933, Stöckhert leg., OLINZ; Thaldorf Bay, 1 ♀, 10-VII-1941, Stöckhert leg., OLINZ. France: Bas-Rhin: Soultz l. Bains, 1 ♂, 13-V-1934, Klein, M.leg., OLINZ, in Lepidium L. [ Brassicaceae ] Hautes-Alpes: Barret-le-Haut nr., Laragne, 1 ♀, 20-VI-1962, Lieftinck, M. leg., OLINZ, mer. 800 masl. Eastern Pyrenees: Font Romeu, 1 ♀, 11-VII-1965, Vecht, J. leg., OLINZ. Russia: Volga: Dreispitz, 1 ♀, 12-VI-1930, Klein, M. leg., OLINZ. Unknown locality:Kolmint o Kolmont, 1 ♂, 11-VI-1966, B.V.L. leg., OLINZ.