Ocalea rivularis MILLER , 1852

Ocalea rivularis MILLER, 1852 View in CoL

Ocalea rivularis MILLER, 1852: 110 View in CoL .

Ocalea latipennis SHARP, 1870: 280 View in CoL . nov. syn.

Ocalea pollinensis SCHEERPELTZ, 1956: 29 View in CoL ff. nov. syn.

M a t e r i a l e x a m i n e d: O. rivularis View in CoL : Lectotype ♀, present designation: " rivularis MILL. Verh. Zool. View in CoL bot. Ver. Wien I, p.110, Kraatz, F.D.II.p52,3 / rivularis MILL. View in CoL Austria, Dr. Haag / c. Eppelsh. Steind. d. / typus / Typus / Lectotypus ♀ Ocalea rivularis MILLER View in CoL , desig. H. Terlutter 2025 (NHMW). Paralectotype 1♀: " Miller, 861 / rivularis / Typus " (NHMW). O. latipennis View in CoL : Lectotype, together with other specimens in the Sharp collection, labelled as O. latipennis (BMNH) View in CoL . The lectotype is labelled accordingly, but I do not know, whether this designation is formally published. O. pollinensis View in CoL : Holotype J: " J / Piani Pollino, VI 951 / Mass. Pollino, Ruffo I. / ex coll. Scheerpeltz / Typus, Ocalea View in CoL , pollinensis, SCHEERPELTZ View in CoL " (NHMW).

R e m a r k s: No number of specimens is given in the original description of O. rivularis . In the collection in Vienna there are two specimens labeled as types. The specimen with the patria information Austria is designated als lectotype.

O. rivularis View in CoL has a large morphological variability, as already described by LOHSE (1974) and FAGEL (1957). Lohse suggests that this variability is partly due to geography. O. rivularis View in CoL has been described from Austria, O. latipennis View in CoL from Scotland. When analysing more extensive material from different European countries, such a differentiation could not be traced. Larger and darker specimens have been labelled as O. latipennis View in CoL in collections, but no consistent morphological features can be found to distinguish them from O. rivularis View in CoL . The same applies to O. pollinensis View in CoL , which has been described from southern Italy. The synonymy of O. latipennis View in CoL and O. pollinensis View in CoL has already been suggested by TERRILE (2023). The external shape of the aedeagus is also variable in size and the shape of the ventral process, but the internal structures are relatively constant. The spermathecae are also variable and not suitable for separation. I therefore propose a single variable species O. rivularis View in CoL , which can be separated from other Ocalea species by the slender shape of the ventral process and the internal structures of the aedeagus.