Steiniella. 513 



in female shorter; it is strongly convex behind, but not specially 

 puffed out below. Frons in male somewhat narrow and strongly 

 protruding, in female broader and less protruding. Cheeks somewhat 

 broad, and jowls more than half the height of the eye. In both sexes 

 ocellar and inner and outer vertical, in female also two orbital bristles. 

 Frontal bristles descending to insertion of antennæ, all crossing in 

 male, in female an outwards directed above. Long postocellar but 

 no occipital bristles. Behind postocular bristles all black hairs. Cheeks 

 bare. Vibrissæ a little ascending. Eyes hairy, less in female than in 

 male. Epistoma strongly retreating, somewhat reflected below. 

 Antennæ inserted below middle of the eye, in female a little higher; 

 third joint slightly longer than second; arista with second joint short. 

 Thorax rectangular; three postsutural dorsocentrals and two præ- 

 and postsutural acrostichals ; no præsutural intraalar bristle; one 

 posthumeral bristle. Scutellum with four marginal bristles on each 

 side, the middle pair long, about parallel; no apical bristles. Three 

 sternopleural bristles. Pteropleura with a bundle of hairs and a long 

 bristle above. Abdomen elongated ovate; excavation on second seg- 

 ment small, not reaching hind margin; sternites not concealed; 

 abdomen has discai and marginal bristles, and also second segment 

 with both kinds; fifth segment with bristles all over. Genitalia not 

 small, somewhat knob-like protruding below. Legs of medium length; 

 claws and pulvilli in male elongated; front tarsi in female simple. 

 Wings with first posterior cell narrowly open, ending quite near 

 apex of wing; discai angle rounded; a costal spine present. 



The sole species of which the biology is known is parasitic on 

 larvæ of Melasoma. 



Of the genus only the species callida, also occurring in Denmark, 

 is well known; besides two species from Zetterstedt are recorded as 

 belonging to the genus. 



1. S. callida Meig. 



1824. Meig. Syst. Beschr. IV, 268, 49 {Tachina) et 1838. VII, 229, 18 

 (Macquartia). — 1895. Pand. Rev. Entom. XIV, 327, 11 [Macquartia). — 1900. 

 ,Stein, Ent. Nachricht. XXVI, 133. — 1907. Kat. palåarkt. Dipt. III, 411. — 

 1921. Baer, Zeitschr. f. angew. Ent. VII, 375. — 1924. Stein, Arch. f. Natur- 

 gesch. 90, 6, 163. — T . protuherans Zett. 1844. Dipt. Scand. III, 1116, 113 et 

 1859. XIII, 6107, 113. — 1862. Schin. F. A. I, 455 {Nemomea). — 1893. B. B. 

 Denkschr. Akad. Wiss. Wien, LX, 186, 33 (Steinia). 



Male. Frons above a little more than half as broad as the eye. 

 Orbits and cheeks silvery; jowls grey; frontal stripe brownish, seen 



33 



