I 



Voria. 485 



the median narrow, abbreviated behind; scutellum greyish pruinose; 

 pteropleura with a long and strong bristle above. Abdomen black, 

 shining, the three last segments with a broad, whitish grey pruinose 

 front band, leaving the hind margins black; sometimes thorax and 

 abdomen less pruinose and thus darker (subcincta). Abdomen black- 

 haired; second segment without bristles, third with a pair of discai 

 and marginal, iourth with a pair of discai and a row of marginal; 

 on third and fourth gegment there may further be a pair of small 

 discai bristles anterior to the others; fifth segment with two rows 

 of bristles. Legs black; claws and pulvilli elongated, but less than in 

 ruralis. Wings a little tinged; veins blackish; first posterior cell 

 narrowly open ; discai angle nearly rectangular, with a fold as veinlet ; 

 posterior cross-vein very oblique, issuing about below medial cross-vein 

 and joining discai vein at the middle between medial cross-vein and 

 angle or beyond; cubital vein with bristles more or less beyond 

 medial cross-vein. Squamulæ white. Halteres yellowish brown. 



Female. Similar, with frons of about same breadth. 



Length 5,5 — 8 mm. 



V. trepida is not rare in Denmark; Lersø, Ordrup, Dyrehaven, 

 Frerslev Hegn, Tisvilde, Alindelille near Sorø; on Langeland at 

 Lohals, in Jutland at Sønderborg, Sottrup, Madeskov, Nørholm Skov 

 at Varde, Hald, and Albøge in Djursland; the dates are ^/g — ^'Z,. A 

 number of our specimens are bred from undetermined lepidopterous 

 larvæ. The species is known as parasitic on Epineuronia popularis^ 

 Plusia gamma., AnaHa myrtilli and the non Danish Apopestes Spec- 

 trum., and from Lophyrus pini:, further (curvinervis) from Taenio- 

 campa incerta and stabilis and Epiblema sordidana., and (ruficornis) 

 from Cucullia lucifuga and the non Danish Rhyparia purpurata. 

 According to Nielsen (Viden sk. Meddel, fra Dansk naturh. Foren. 

 68, 1917, 26) the species which he has treated (ibid. 66, 1915, 215) 

 a^ Ernestia connivens is probably, as regards the larva and the biology, 

 the present species; it was bred from Mamestra persicariae; one to 

 seven from each larva; the larva bored out and pupated in the ground. 

 One of our specimens is bred on ^Z,. — I have examined a specimen 

 of T. subcincta sent from Zetterstedt to Stæger. 



Geographical distribution: — All Europe; towards the north to 

 middle Sweden, and in Finland. 



Remarks : The examination of my material seems fully to prove, 

 that the opinions expressed by Villeneuve 1. c. with regard to the 

 identity of trepida with ruficornis, curvinervis and subcincta are correct. 



