Gonia. 391 



the cheeks. On the orbits, outwards to the frontal bristles, some 

 more or less irregularly placed bristles. Cheeks hairy, at the inner 

 margin with a shorter or longer row of bristles in about the lower 

 half. Vibrissæ not ascending; the vibrissal ridges somewhat con- 

 verging just below. Eyes bare. Epistoma a little retreating, somewhat 

 strongly reflected below. Oral cone and proboscis long, of about 

 equal length; clypeus long and narrow, forceps-like excised; pro- 

 boscis slender, labella relatively small; palpi long, slightly dilated 

 outwards. Antennæ inserted at middle of the eye or only slightly 

 above; in the male second joint short, third long, four to five times 

 as long as second; in female second joint longer and third shorter, 

 so that they are about equal, or third only twice as long as second; 

 arista short, thickened in the whole length, second joint elongated, 

 as long or about as long as third, and the two geniculate towards 

 each other. Thorax quadratic or a little rectangular; four postsutural 

 dorsocentrals and three præ- and three postsutural acrostichals ; 

 a præsutural intraalar bristle. Besides the two notopleural bristles 

 still a smaller third. Scutellum with four marginal bristles on each 

 side, the apical (or preapical) diverging and somewhat erect; besides 

 some smaller bristles may be present; further there are some bristles 

 on the disc. Four sternopleural bristles. Pteropleura with a bundle 

 of hairs and a strong bristle above. Abdomen ovate; excavation on 

 second segment reaching hind margin; only marginal bristles, on 

 second segment a pair or none, on third a pair and on fourth a row 

 (in non Danish species there may be more numerous bristles on 

 second and third segment). Genitalia small, hidden. Legs with the 

 anterodorsal bristles on hind tibiæ more or less unequal, sometimes 

 rather dense and equal; claws and pulvilli small; in female the three 

 last joints on front tarsi dilated. Wings with first posterior cell nar- 

 rowly open or just closed, ending considerably before apex of wing; 

 discai angle rectangular or obtuse; bristles on base of cubital vein 

 generally somewhat numerous; no costal spine. 



The species are parasitic on Heterocera, especially on larvæ of 

 Mamestra and Agrotis; they belong, so far known, to Pantel's group 2. 

 They are mainly spring species. 



Up to a score of palæarctic species are known, but a number being 

 southern forms; 3 occur in Denmark. 



Table of Species. 

 1. Abdomen black or mainly black and also venter black. ... 3. fasciata. 

 — Abdomen mainly red and also venter red 2. 



