414 Tachinidae. 



rather broad, a little dilated outwards, scarcely double as iong as 

 broad. Palpi brownish, quite small, with a Iong bristle at apex. Thorax 

 grey pruinose; humeral callus, sides and scutellum reddish; tbere are 

 four dark stripes of about equal breadth, the median abbreviated 

 behind the suture. Thorax black-haircd, at the sides and behind 

 with yellow hairs. Pleura with Iong, yellow hairs. Abdomen red with 

 a black middle stripe, not reaching the end; below likewise red with 

 black middle; it is whitish silvery pruinose, shifting according to 

 view; abdomen is black-haired, with bristles as in L. comta. Fifth 

 sternite cleft to base, the lamellæ roundly incised in hind margin. 

 Genital knob red; præhypopygial segment with a transverse row of 

 bristly hairs. Hypopygium conical behind, with backwards directed 

 bristles; upper forceps black, elongated triangular and drawn out 

 into a spine-like apex; its upper margin a little incised; it has longish 

 hairs, the apex bare; arms of lower forceps triangular, red, with 

 longish hairs outwards. Legs yellowish red, tibiæ often a little ob- 

 scured, tarsi black. The legs has Iong bristles. Wings nearly clear; 

 veins brown. Squamulæ white. Halteres yellow. 



Female. Similar; frons broader; third antennal joint a little 

 smaller, not much longer than second. The black middle line on ab- 

 domen more abbreviated behind and often narrower. 



Length 9 — 11 mm. 



M.vulpinus is not rare in Denmark; Skodsborg, Tisvilde, Rør- 

 vig, Solrød; on Funen at Hoffmansgave; in Jutland in Nørholm Skov 

 at Varde, at Silkeborg, Laven and Holstebro; the dates are ^V? — ^"/s- 

 It is especially seen on umbellifers and on heather, It is known as 

 parasitic on Hyloicus pinastri, Hadena porphyrea and Agrotis strigula. 



Geographical distribution: — Europe; towards the north to 

 middle Sweden. 



96. dipysosoma Macq. 



{Chrysocosmius Bezzi 1907.) 



Species of medium size and all metallic colour, and thus resembling 

 Gymnochaeta. Head as broad as thorax, convex behind, and somewhat 

 puffed out below, slightly higher than Iong. Frons somewhat narrow 

 in male, broader in female, rather conically protruding. Cheeks not 

 broad, decreasing in breadth downwards; jowls not half as broad 

 as the eye is high. In male ocellar and inner vertical, in female also 

 outer vertical and two orbital bristles. Postocellar and occipital 



