10 Pipunculidae. 



bred; he therefore thinks these species less exposed to attacks. I 

 have, however, myself bred a Proctotrupid, Basalys erythropus Kieff. 

 from a piipa of P. xanthopus found in flood refuse; I think the larva 

 is here infested during the short time from its leaving the host until 

 pupation. 



Pipunculidae earlier recorded from Denmark: — The only author 

 who has mentioned Pipunculids from Denmark is Zetterstedt, who 

 in 1844 in Dipt. Scand. III enumerates 10 species: P. pratorum, ater, 

 fuscipes, geniculatus, sylvaticus^ rufipes, fulvipes, varipes, ruralis and 

 spurius, and in 1849 in VIII he f urther mentions nigritulus and 

 flavipes. Of these species geniculatus (nec Meig.) is by Verrall considered 

 as a new species incognitus, this species, however, is not foimd in our 

 collection, but there is a specimen from Stæger of nigritulus, labelled 

 geniculatus, and, according to some manuscript notes from Stæger, 

 it also seems to be this species which he cailed geniculatus, and I 

 therefore think that Zetterstedt's record (probably he had seen no 

 Danish specimen but got information from Stæger) refers to this 

 species, which thus is the same as the later on recorded nigritulus; 

 I have seen geniculatus in Zetterstedt's collection; there are two males, 

 and they fully answer to Becker's description of his geniculatus = 

 incognitus Verrall; fulvipes is = maculatus; ruralis Zett. has never 

 been interpreted with certainty, the species is not found in our collec- 

 tion, and I think it probable that the species may have been a fuscipes; 

 in Zetterstedt's collection the species was not found, there was only 

 a label with the inscription "t^, Stæger"; fmally flavipes is = Braueri. 

 Thus Zetterstedt knew in 1849 ten or, if his ruralis was distinct, eleven 

 Danish species. In the present work 28 species are enumerated. 



Tahle of Genera. 



1. Head about as long as broad and as long or longer than 

 thorax, puffed out behind along the eye-margin and then 

 deeply hollowed; no ocellar bristles; third antennal joint 

 pointed or rostrate below; thorax and abdomen almost 



bare or only short-haired ; no bristles present 1. Pipunculus. 



— Head shorter than broad and shorter than thorax, not 

 puffed« out behind the eye-margin, and the back flat or 

 slightly concave; ocellar bristles present; antennæ with 

 the third joint rounded below; thorax and abdomen longish 



pilose and with some bristles 2. 



2. No discai cell present 2. Chalarus. 



— A discai cell present 3. Verrallia. 



