390 Phoridae. 



margins of the segments and more distinctly seen at the sides; venter 

 more or less pale; the third tergite is somewhat abbreviated as its 

 hind margin is concave, at the sides it is of full length, but in the 

 middle it is only two thirds of the length at the sides; the unchitinized 

 part between it and the fourth segment is yellow. Legs yellow, hind 

 femora more or less darkened at apex, the hairs below the basal 

 half slightly longish; bristles on hind tibiæ small, numerous and hair- 

 like. Wings yellowish or brownish, veins dark brown and thin veins 

 rather strong; costa long, reaching beyond the middle to about 0,56 

 of the wing-length; costal divisions about as 5 — 3 — 2, thus 1 equal 

 to 2 + 3; fork longish; costal cilia long; fourth vein a iittle S-like 

 at the base, strongly curved in its first part, for the rest slightly and 

 evenly curved. Halteres yellow. 



Length 1,4 to fully 2 mm. 



Remarks: When I first described this species I had only two 

 specimens, but later on I have got a large material. The shape of the 

 third abdominal tergite is rather characteristic, but on the dried 

 specimens the shape of it is not always to be seen when abdomen is 

 contracted, but it is always shorter than the second and fourth; it 

 seems for the rest to vary somewhat as regards the degree of ab- 

 breviation. I strongly suspect that this species is the female of my 

 similata^ partly because on two occasions I have taken them in 

 Company, but especially because of their great similarity. Under 

 pulicaria I have spoken of the possibility of similata being a variety 

 oi pulicaria\ if now breviterga should prove to be the female of similata, 

 this would seem to be in favour of the latter being a sure species, 

 but, on the other hånd, the possibility of its being a variety is not 

 quite excluded thereby, for in the pulicaria female, according to spec- 

 imens which I consider as this species, the third abdominal tergite 

 seems to be able to vary a Iittle in size and shape ; it may thus not be 

 quite impossible that similata and breviterga, if male and female of 

 the same species, represent a variety of pulicaria. I shall, however, 

 remark that besides the characters from the hypopygium and the 

 abbreviated tergites, the two species have the thin veins distinctly 

 stronger than in pulicaria, only in smaller specimens of breviterga 

 this is less or not pronounced; perhaps only these latter may belong 

 to pulicaria. 



A. breviterga is common in Denmark; Ermelund, Geel Skov, on 

 Langeland at Lohals and in Jutland at Hejls south of Kolding and in 



