532 Tachinidae. 



the eye or a little below, short, not reaching end of epistoma; third 

 joint scarcely twice as long as second; arista distinctly short-haired, 

 second joint short. Thorax rectangular; three postsiitural dorso- 

 centrals and one præsutural and a præscutellar pair of postsutural 

 acrostichals ; no præsutural intraalar bristle; one posthumeral bristle. 

 Scutellum with two marginal bristles on each side and no or small 

 apical hairs. Three sternopleural bristles. Pteropleura above with 

 small hairs and a small bristle. Abdomen elongated, cylindrical, a 

 little tapering; second segment elongated, with the excavation small, 

 only present at base; there are only marginal bristles, on second 

 segment a pair; fifth segment with only a marginal row. Genitalia 

 small; fifth sternite cleft to the middle. Legs long and slender, with 

 rather moderate and fme bristles; anterior tarsi long; claws and 

 pulvilli in male small and fme {Micromyiobia), or elongated. Wings 

 with first posterior cell narrowly open or nearly closed, ending near 

 apex of wing; discai angle obtuse but not rounded; no distinct costal 

 spine. 



The species which have been bred are parasitic on Neterocera, 

 and one species on Crioceris asparagi. M. inanis is known to belong 

 to Pantel's group 6. 



Of the genus about a dozen European species are recorded, but 

 several seem to be synonyms; two occur in Denmark. 



Table of Species. 



1. Frons in male narrow and without orbital bristles; jowls one 

 sixth of the height of the eye; claws and pulvilli in male 

 elongated 1. inanis. 



— Frons broad in both sexes and with orbital bristles; jowls 

 one third of the height of the eye; claws and pulvilli small in 

 both sexes 2. tihialis. 



1. M. inanis Fall. 



1810. Fall. Vet. Acad. Handl. XXXI, 270 et 1820. Dipt. Suec. Muse. 

 21, 43 {Tachina). — 1844. Zett. Dipt. Scand. III, 1168, 171 {Tachina). — 

 1862. Schin. F. A. I, 515. — 1894. Pand. Rev. Entom. XIII, 105, 9. — 1907. 

 Kat. palåarkt. Dipt. III, 421. — 1910. Villen. Feuille des jeun. Nat. 5, 41, 22. 

 — 1921. Baer, Zeitschr. f. angew. Ent. VII, 376. — 1924. Stein, Arch. f. Natur- 

 gesch. 90, 6, 168, 2. 



Male. Frons narrow, at most one fourth of the breadth of the eye, 

 a little protruding; cheeks and jowls likewise narrow, the latter about 

 one sixth of the height of the eye. Head silvery; frontal stripe blackish 



