M4 



Tachinidae. 



Female. Similar; frons of the same breadth; fifth abdominal 

 segment not longer than fourth, while it is so in male; front tarsi 



Fig. 115. Wing of W. nigrans. 



with the foiir last joints a little dilated, the three last nearly quadratic 

 and the joints on margins and above with short stiff hairs. 



Length 3,5 — 5,5 mm. 



W. nigrans is not rare -in Denmark; Charlottenlund, Gilleleje, 

 Tisvilde, Rørvig, and in Jutland at Skagen ; it occurs in sandy locali- 

 ties; the dates are ^^/g — ^^/g. 



Geographical distribution: — Europe and probably towards the 

 north to middle Sweden and Finland. 



Remarks: The species is generally considered identioal with 

 carbonaria Meig. ; this may be possible, but all my specimens have 

 the subcostal vein bare. 



2. W. costata Fall. 



1820. Fall. Dipt. Suec. Muse. 8, 8 (Ocyptera). — 1824. Meig. Syst. Beschr. 

 TV, 419, 314 (TacMna) et 1838. VII, 252, 1, Tab. LXXI, Fig. 46—50 (Scopolia). 



— 1844. Zett. Dipt. Scand. III, 1240, 2 {Scopolia). — 1862. Schin. F. A. I, 540 

 {Scopolia). — 1907. Kat. palåarkt. Dipt. III, 374. — 1921. Baer, Zeitschr. f. 

 angew. Ent. VII, 367. — T. lugens Meig. 1824. 1. c. IV, 417, 313 et 1838. VII, 

 252, 3, Tab. LXXI, Fig. 51 {Scopolia). — 1844. Zett. 1. c. III, 1243, 6 {Scopolia). 



— 1862. Schin. F. A. I, 540 {Scopolia). — 1889. B. B. Denkschr. Akad. Wiss. 

 "Wien, LVI, 106, Tab. V, Fig. 101 {Phorichaeta). — lS96. Pand. Rev. Entom. 

 XV, 125, 3 {Scopolia). — 1900. Stein. Ent. Nachricht. XXVI, 142 {Scopolia). — 

 1907. Villen. Ann. Soc. Ent. de Fr. LXXVI, 392. — 1924. Stein, Arcli. f. Natur- 

 gesch. 90, 6, 125, 6. 



Of this species I know only the female; it is similar to the pre- 

 ceding species but larger. Orbits above black and shining, below 

 together with cheeks silvery; jowls somewhat reddish, greyish prui- 

 nose; frontal stripe velvet brownish black. Bristles mainly as in 

 nigrans, but my specimens have only two orbital bristles. Orbits 

 slightly hairy, cheeks, besides the bristles, and jowls bare. Occiput 



