Trachusa hakkariensis, Kasparek, Max, 2018

Kasparek, Max, 2018, Taxonomic revision proves Trachusapubescens (Morawitz, 1872) sensu lato to be a complex of allopatric and sympatric species in South-Eastern Europe and Western Asia (Hymenoptera, Apoidea, Anthidiini), ZooKeys 764, pp. 111-144 : 111

Trachusa hakkariensis sp. n. Figs 11, 12, 14, 15

Material.

Holotype: Male. TURKEY: Hakkâri province: Cilo Dağı (W Serpil), 1800 m, 8.08.1982, K. Warncke leg. (OLL). Paratypes: 9♂, same data as holotype (OLL).

Other material: TURKEY: 14♂, Hakkâri province: Cilo Dağı (W Serpil), 1800 m, 8.08.1982, K. Warncke leg. (OLL); 1♂, Hakkâri province: Cilo Dağı (2000 m), M. Kühbandner leg. (cMS); 2♂, Van province: Gevaş, 2.07.2000, Ma. Halada leg. (cMS); 1♂, Malatya province: 15 km E Malatya, 27.06.2000, Ma. Halada leg.; 1♀, 3♂, Hakkâri province: 10 km NE Dağlıca (= Oramar) (1700 m), 29.06.1985, M. Schwarz leg. (cMS).

Differential diagnosis.

Males are similar in colouration to T. maxima but are clearly distinguished by the size of their mandibles (not enlarged as in T. maxima ), the median projection of T6 which does not project beyond the lateral projections, and the on average smaller body size (16-18 mm versus 17-19 mm). In a few individuals the apex of the median projection of T6 is truncated (but never emarginate). The median projection of T7 normally tapers apically (usually parallel-sided in T. maxima ). In the mandible index (clypeus length / mandible width), T. hakkariensis sp. n. resembles T. pubescens s. str. The average value is statistically significantly lower than in T. verhoeffi and higher than in T. balcanica sp. n. and T. maxima (Table 3).

Trachusa hakkariensis sp. n. has a shallowly emarginate clypeus with a crenulated apical margin. It shares this character with T. balcanica sp. n., T. maxima , and T. verhoeffi . By contrast, T. pubescens has a straight margin.

Derivatio nominis.

Named after the Turkish province of Hakkâri, where the type locality of the new species is located.

Distribution.

The species is known from eastern and south-eastern Turkey; records are available from the provinces of Hakkâri, Van and Malatya. The distribution areas thus overlap with T. pubescens , although these two species have never been found at the same location. The distribution areas of T. hakkariensis sp. n. and T. maxima are subcontiguous.

Flower preference.

No information available.