Hyposoter alpicola ( Smits van Burgst, 1914 ) Galsworthy & Shaw & Haraldseide, 2023

Galsworthy, Anthony, Shaw, Mark R. & Haraldseide, Håkon, 2023, A key to European species of Hyposoter Förster, 1869 (Ichneumonidae: Campopleginae) with descriptions of 18 new species, and notes on all included species, Zootaxa 5290 (1), pp. 1-73 : 34

Hyposoter alpicola ( Smits van Burgst, 1914) comb.nov.

Angitia alpicola Smits van Burgst, 1914 ; holotype ♁ in LEW, examined by Horstmann.

syn. Hyposoter caedator postcaedator Aubert, 1964 syn. nov.: lectotype, here designated. Label data: TYPE; HYPOSOTER CAEDATOR Grav. POSTCAEDATOR Aub ; J F Aubert 1962 BdR VAUVERT; Si ce n’est pas une forme de CAEDATOR ne correspond aucune autre espèce decrite [in Aubert’s handwriting]; syntypes 1 & 2/?22 Hyposoter caedator postcaedator Aubert 1964 c , labelled by S. Klopfstein 2009. GBIFCH 00832761 [with barcode]; Note: there are two specimens on the pin; the top one is chosen as the lectotype. ( Fig. 43 )

Horstmann (1969), after examining the holotype of alpicola , speculated that this species belonged in Hyposoter . His notes, and his draft key, confirm that he had intended to transfer it to Hyposoter , and that he regarded Hyposoter postcaedator Aubert, 1964 , the type material of which he had also examined, as a junior synonym of it. These intentions are now formalised here.

We have not ourselves seen the holotype of alpicola , and rely on Horstmann’s notes. We have however seen the lectotype of postcaedator designated above. This is distinct from H. praecaedator in having the last 2 tergites of the metasoma darkened, and a narrow dark apex to tergite 2. The mesopleuron is fully granulate. The species resembles H. caedator more than praecaedator but, unlike caedator , it has a yellow underside to the scape.

The holotype of H. alpicola was from near Bolzano in the Italian Alps. Hyposoter postcaedator was described from the south of France. We have seen two specimens of H. alpicola from Norway, both taken in July. The biology is unknown.

Figures

FIGURES 39–43. 39–40: Hyposoter rufonigrator sp. n. Habitus: 39 lateral, 40 dorsal. 41: Hyposoter insulator lectotype. Habitus. 42: Hyposoter praecaedator lectotype. Habitus. 43: Hyposoter postcaedator lectotype. Habitus.