Graphogaster. 129 



or blackish brown. Quite small ocellar and crossing inner vertical 

 bristles, but no outer verticals; one orbital bristle. Frontal bristles 

 few in number. Orbits and jowls bare. Occiput blackish above, 

 silvery below, with white hairs, almost bare above. Antennæ brown, 

 black at base, third joint about foiir times as long as second, strongly 

 dilated outwards and of triangular shape; arista brown, thickened 

 in about basal half. Palpi yellowish brown. Thorax black, a little 

 bluish grey pruinose on humeri, at the sides and on a middle stripe 

 in front; pleura silvery grey pruinose. Thorax has only very few 

 black hairs. The lateral marginal bristle on scutellum small. Only 

 one distinct, but small sternopleural bristle. Abdomen black, shining, 

 the front margin of third and fourth segment with a silvery grey 

 pruinose band. Abdomen has black hairs and marginal bristles, 

 one pair on second and third segment and a row on fourth. Fifth 

 sternite formed as an arch, with bristles at base. Legs blackish brown, 

 all or only posterior tibiæ yellowish in apical half; tarsi black, long, 

 especially anterior tarsi, and somewhat robust. Wings a little brownish ; 

 veins brown; from apical part of radial vein a brown transverse 

 band down over posterior cross-vein; first posterior cell open, ending 

 a little before apex of wing; discai angle rounded; apical cross-vein 

 sloping. Squamulæ white and clear, glassy. Halteres yellow. 



Female. Similar; frons a little narrower, with the same bristles; 

 third antennal joint much less dilated. 



Length 8 — 10 mm. 



L. fasciata is rare in Denmark; we have in all five specimens, 

 four males and a female; Dyrehaven (Drewsen, the specimen men- 

 tioned by Zetterstedt, a male), Ruderhegn (Kryger) and Jægerspris 

 (Schlick); the dates are in August. The species is recorded parasitic 

 on Tortrix viridona. 



Geographical distribution: — Europe down into France; not 

 known north of Denmark. 



16. Grapliogaster Rond. 



Greyish pruinose species of small size. Head fully as broad as 

 thorax, very slightly convex behind and somewhat puffed out below, 

 higher than long. Frons in female fully as broad as the eye, not 

 protruding. Jowls about one third of the height of the eye. Ocellar, 

 inner and outer vertical and two orbital bristles present in female. 

 Postocellar and occipital bristles distinct. Behind postocular bristles 



9 



