The bees of the genus Hylaeus FABRICIUS, 1793 of Turkey, with keys to the subgenera and species (Hymenoptera: Anthophila, Colletidae) Author Özbek, Hikmet Author Dathe, Holger H. text Beiträge Zur Entomologie = Contributions to Entomology 2020 2020-12-01 70 2 273 346 journal article 10.21248/contrib.entomol.70.2.273-346 0005-805X 5742898 Hylaeus ( Nesoprosopis ) pectoralis FÖRSTER, 1871 Hylaeus pectoralis FÖRSTER, 1871: 972–973 , . loc. typ. unknown [ Germany or France ]. Hylaeus ( Nesoprosopis ) pectoralis FÖRSTER, 1871 – PROSHCHALYKIN & DATHE, 2012: 23 . Material examined: Erzurum : Oltu , Çamlıbel , 22 km WSW of Oltu , 1700 m , 40°28N 41°47E , 23.06.2001 , ; 02.07.2001 , ; 30.07.2003 , , leg. J.G. Rozen , H. Özbek (coll. AMNH ) . Muğla : Köyceğiz , 10.06.1987 , , leg. P. H. v. Doesburg. Remarks: H. pectoralis is recorded in Turkey for the first time. The species is well known as a user of vacated galls of the chloropid fly Lipara lucens MEIGEN in reed stems ( Phragmites australis ). It nests in the abandoned galls and is therefore confined to wetlands with stands of reeds. The collecting site in Erzurum is a narrow valley containing pastureland, through which a stream flows, a branch of the river Çoruh, beside which are small Phragmites patches. In agreement with the general situation for this species, H. pectoralis shows a limited, disjunctive distribution in Turkey . Hitherto, H. pectoralis has been found at four places in Erzurum and Muğla only. It is rarely recorded in Turkey (2 provinces, Figs 16.7 , 17 .IV). Distribution: Transpalaearctic from the Pyrenees to Japan , but because of its specific ecological requirements only locally recorded. Turkey : Erzurum and Muğla . New to the Turkish fauna .