400 Tachinidae. 



1889. B. B. Denkschr. Akad. Wiss. Wien, LVI, 104, Tab. V, Fig. 94 et 1891. 

 LVIII, 355 {Roeselia). — 1907. Kat. palåarkt. Dipt. III, 378. — 1921. Baer, 

 Zeitschr. f. angew. Ent. VII, 367. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 

 126. — Tachina fallipes Fall. p. p. 1820. Dipt. Suec. Muse. 22, 44, var. /?. — 

 1844. Zett. 1. c. III, 1055, 49 et 1855. XII, 4693, 49. — 1896. Pand. Kev. 

 Entom. XV, 43 {Roeselia). 



Male. Frons above much broader than the eye; cheeks narrowing 

 downwards. Orbits, cheeks and jowls grey or slightly yellowish grey; 

 frontal stripe red or reddish brown. Vibrissæ diminishing upwards. 

 Orbits sparingly with black hairs, jowls black-haired. Occiput grey, 

 thinly with pale hairs only on middle and with rows of black hairs 



1 



Fig. 87. Wing of R. antiqua. 



behind postocular bristles. Antennæ black, with the basal joints 

 red; third joint long and also rather broad; arista thickened in basal 

 half. Palpi yellow. Thorax yellowish grey pruinose, with four rather 

 narrow dark stripes, the median abbreviated behind, the lateral 

 divided at the suture into two spots; scutellum yellow, grey at base. 

 Thorax black-haired. Abdomen all yellowish pruinose, black-haired; 

 on second segment a pair of marginal bristles, on third a pair of 

 discai and marginal and on fourtli a row of discai and marginal, 

 and likewise on fifth segment. Legs yellowish red, coxæ grey pruinose on 

 anterior side, tarsi black; the femora may be somewhat darkened at 

 base. Wings yellow, most at base; veins yellowish brown; discai 

 vein abbreviated and thus no apical cross-vein, but sometimes rudi- 

 ments of it present, especially the apical part, and in rare cases it is 

 completely present; cubital vein ending quite near apex of wing. 

 Squamulæ yellowish with a deeper yellow margin. Halteres yellow. 



Female. Similar; frons of the same breadth. Third antennal 

 joint much smaller, about thrice as long as second and rather narrow. 

 Fifth abdominal segment shorter than fourth and pointed; abdomen 

 sometimes grey. 



Length 6 — 7 mm. 



