40 Pipunculidae. 



Female. Frons grey, but black above in front of the vertex; 

 third antennal joint more pointed than in the male. Pleura and post- 

 scutellum more grey. Abdomen black, shining, first segment grey, 

 second more or less grey on the front part or quite grey, the segments 

 have grey triangular lateral spots. Hypopygium with an oval, black 

 and shining basal part, the reddish ovipositor is about as long as or 

 slightly shorter than the basal part, and it is somewhat recurved, 

 the basal part passing somewhat evenly into the ovipositor. Legs 

 coloured as in the male, claws and pulvilli a little larger. Wings with 

 the stigma as long as next costal segment. 



Length 3 — 4 or fully 4 mm. 



Fig. 17. Wing of P. atei- ?. 



P. ater is common in Denmark, Ordrup Mose, Ermelund, Dyre- 

 haven, Lyngby Mose, Fure Sø, Søllerød, Ørholm, Geel Skov, Ruder- 

 hegn, Alindelille, Vemmetofte, on Langeland at Lolials, on Lolland 

 at Lysemose and in Kæld Skov, in Jutland in Grejsdal at Vejle, at 

 Ry and Horsens and on Bornholm at Allinge; my dates are '/s — ^"/s. 

 Pupæ were taken on ^^/s at Skovrøddam in Ruderhegn in flood refuse, 

 the imagines emerged in the first days of May (Kryger.) 



Geographical distribution: — Europe down into Italy, towards 

 the north to northern Sweden. 



Remarks: It seems to me that Becker has confused the females 

 of this and the foregoing species, as he describes ater with the frons 

 quite grey and the ovipositor straight, and Thomsoni with the frons 

 black above and ovipositor recurved, while 1 find just the reverse. 

 That my females really belong to ater is, I think, beyond doubt, for 

 the first they agree well in size, and they are also agreeing with my 

 males with regard to localities; this is, to be sure, not convincing, but 

 further I have bred both sexes of ater from some pupæ found together, 

 and this faet is, I think, of importance. 



The four species varipes, spinipes, Thomsoni and ater form one 

 group and are related and similar, but surely distinct; the males will 



