552 Tachinidae. 



Tahle of Species. 



1. Third antermal joint long and narrow, four times as long as 

 second; pruinose bands on abdomen more or less broad; 

 hypopygium witbout bristles; front tibiæ with one posterior 

 bristle ; balteres yellow ; f emale witb only inner vertical bristles 1 . collaris. 



— Third antennal joint sborter; pruinose bands on abdomen 

 narrow; bypopygium witb two bundles of bristles at end; 

 front tibiæ with two posterior bristles; balteres black; f emale 

 witb both inner and outer vertical bristles 2. luctuosa. 



1. D. collaris Fall. 



1820. Fall. Dipt. Suec. Muse. 15, 27 (Tachina). — 1824. Meig. Syst. Beschr. 

 IV, 403, 286 (Tachina) et 1838. VII, 249, 7, Tab. LXXI, Fig. 31—35. — 1838. 

 Zett. Ins. Lapp. 637, 16 et 1844. Dipt. Scand. III, 1072, 68 (Tachina). — 1862. 

 Scbin. F. A. I, 534. — 1889. B. B. Denkscbr. Akad. Wiss. Wien, LVI, 95, 127, 

 Tab. VIII, Fig. 208. — 1896. Pand. Kev. Entom. XV, 108, 1 (Latreillia). — 

 1900. Stein, Ent. Nacbricht. XXVI, 133. — 1907. Kat. palåarkt. Dipt. III, 

 398. — 1924. Stein, Arch. f. Naturgescb. 90, 6, 148, 1. — D. ornata Meig. 

 1838. 1. c. VII, 249, 8. — 1844. Zett. 1. c. III, 1071, 67 (Tachina). — 1862. 

 Schin. F. A. I, 534. — 1900. Stein, Ent. Nacbricht. XXVI, 145. 



Male. Frons above not half as broad as the eye; cheeks and 

 jowls narrow. Orbits, cheeks and jowls silvery; frontal stripe velvet 

 black. One fine orbital bristle, placed very near the frontal row on 

 the narrow orbits, and sometimes wanting. Orbits with very few 

 small hairs; jowls with black hairs. Occipiit grey with a downwards 

 broader silvery eye-margin; it is densely pale-haired with few black 

 hairs above. Antennæ black, third joint linear, about four times as 

 long as second; arista long, thickened in about basal third. Palpi 

 black or brown. Thorax black, slightly shining, whitish pruinose 

 anterior to the suture, especially on the sides and along the suture; 

 the pruinosity is best seen quite from behind; on the front part there 

 are two darker and duller median stripes, continued a little behind 

 the suture, and on each side a similar spot, not traceable backwards. 

 Thorax has very sparse, fme black hairs; a præsutural intraalar 

 bristle. Two sternopleural bristles. Abdomen black, more or less red- 

 dish translucent on the sides; the three last segments with a silvery 

 front band, interrupted in the middle, broadening towards the sides. 

 Abdomen is black-haired, with long discai and marginal bristles, 

 on second segment a pair of marginal, on third and fourth one or 

 two pairs of discai and on third a pair, on fourth a row of marginal 

 bristles. Legs black; front tibiæ with one posterior bristle (generally). 

 Wings somewhat brownish tinged; veins brownish black; anal 



