Zenillia. 343 



veins blackish brown; first posterior cell ending near apex of wing, 

 open; discai angle a little obtuse; apical cross-vein slightly concave. 

 Squamiilæ a little brownish. Halteres dark brown, 



Female. Similar; frons of about the same breadth; third antennal 

 joint a little shorter. 



Length 5 — 7 mm. 



Z. roseanae is rare in Denmark, I know only five specimens, 

 two males and three females; at Copenhagen (Schlick, E, Nielsen) and 

 in Dyrehaven (E.Olsen); the two males are bred from Eurrhypara 

 urticata (E. Nielsen), and one of the females from Cacoesia rosana 

 (E. Olsen), this latter emerging on ^^Z,. Besides the species was 

 earlier known from Tortrix viridana and the non Danish Conchylis 

 roseana and Sarrothripus undulana. 



Geographical distribution: — Middle Europe down into Italy. 



5. Z. Bottcheri Villen. 



1919. Villen. Bull. Soc. Ent. de Fr. 305, 1. 



Male. Frons above about as broad as the eye, not much pro- 

 truding. Orbits rapidly widening downwards and thus the frontal 

 stripe here narrowing and the orbits broad; cheeks rather narrowing 

 downwards; jowls about one fifth of the height of the eye. Orbits 

 and upper part of cheeks blackish, cheeks for the rest greyish silvery; 

 jowls dark grey; frontal stripe velvet black or blackish brown. Outer 

 vertical pristles present. Frontal bristles descending to the insertion 

 of arista, three uppermost reclinate. Vibrissæ ascending above the 

 middle, somewhat strong. Orbits and jowls with black hairs. Occiput 

 grey, with yellowish hairs, sparse above, and with rows of black 

 hairs behind postocular bristles. Eyes pale-hairy. Antennæ black, 

 third joint towards four times as long as second, broadened towards 

 the end; arista scarcely as long as antennæ, thickened in fuUy basal 

 half. Palpi black. Thorax black, quite slightly bluish grey pruinose, 

 at the sides whitish grey; it has four slightly marked black stripes, 

 the median abbreviated behind ; scutellum with apical part yellowish 

 red. Thorax black-haired; (bristles as usual, but my male specimen 

 shows only three postsutural dorsocentrals and two præsutural 

 acrostichals). Four sternopleural bristles. Abdomen ovate, black, 

 very obscurely reddish at the sides of third segment; the three last 

 segments with a whitish pruinose front band, shifting with dark 

 tessellations according to view, hind margins and a less distinct 



