314 



Tachinidae. 



Three sternopleural bristles. Abdomen somewhat conical, black 

 and shining, with a red side spot on third segment; there is a whitish 

 pruinose front band on third, fourth and fifth segment, shifting 

 with dark irregular tessellations according to view. 

 Abdomen black-haired, with discai and marginal 

 bristles, the former somewhat numerous and irregu- 

 lar; of marginal bristles there are generally a pair 

 on second, foiir on third and a row on fourth segment. 

 Legs black; hind coxæ with two bristles behind at 

 apex; hind tibiæ with an anterodorsal row of not 

 dense, unequal bristles, with some longer bristles; 

 claws and pulvilli elongated. Wings a little brownish 

 tinged at base, for the rest nearly clear; veins blackish; 

 first posterior cell ending well before apex of wing; 

 discai angle about rectangular. Squamulæ white. 

 Halteres dark brown. 



Female. Similar; frons about as broad as the eye. 

 Abdomen without red spots. 

 Length 8 — 9 mm. 



E. ajfinis seems to be rare in Denmark, I know 

 only four specimens, two males and two females, 

 from Valby, Ordrup and Tisvilde, taken in July; 

 two of the specimens are labelled as bred from Arctia 

 caja. The species is otherwise known from Vanessa urticae, Orgyia 

 gonostigma, Dasychira pudibunda, Lymantria dispar, Malacosoma 

 neustria, Dendrolimus pini, Saturnia pavonia, Phragmatobia fuligi- 

 nosa, Pachytelia villosella, Acronycta alni and tridens, Taeniocampa 

 incerta, and no doubt also from Lymantria monacha; f urther from 

 the non Danish Saturnia pyri and Arctia hebe and villica. 



Geographical distribution: — Europe; towards the north to 

 Southern Sweden and Finland. Also occurring in North America. 



Fig. 75. 

 E. af fin is o > 

 hind tibiæ 

 with antero- 

 dorsal bristles 



5. E. hortulana Meig. 



1824. Meig. Syst. Beschr. IV, 330, 157 (Tachina) et 1838. VII, 255, 13. 

 — 1900. Villen. BuU. Soc. Ent. de Fr. 158, 2. — Tachina lota Meig. p. p. ?, 

 1824. 1. c. IV, 326, 150 et 1838. VII, 255, 9. — 1896. Pand. Rev. Entom. XV, 

 27, 43. — 1907. Villen. Ann. Soc. Ent. de Fr. LXXVI, 387 et 1907. Wien Ent. 

 Zeitg. XXVI, 248, 7. — 1921. Baer, Zeitschr. f. angew. Ent. VII, 146. — Par- 

 exorista hlepharipoda B. B. 1891. Denkschr. Akad. Wiss. Wien, LVIII, 322. — 

 1907. Kat. palåarkt. III, 240. — E. higens Stein (nec B. B.) 1924. Arch. f. 

 Naturgesch. 90, 6, 76, 12. 



