152 Phoridae. 



is quite short, tlie side parts liairy, and especially there are long hairs 

 at the lower margin on the right side, and on the left side one or two 

 specially conspicuous hairs at the lower corner behind the fissure, 

 while the plate anterior to the fissure is bare; anal tube long, cylin- 

 drical, with long hairs, it is black or with the apex reddish; ventral 

 plate short. Legs with the hind femora well dilated; the legs are 

 black, front tibiæ and tarsi brownish yellow, and posterior knees 

 reddish; front tibiæ with a dorsal bristle at about the upper third 

 and with a row of short dorsal bristles on the lower half, middle tibiæ 

 with a pair of bristles at the upper third and a small anterior at apex, 

 hind tibiæ with a various number of small anterodorsal and antero- 

 ventral bristles (about 2 — 5 in each row), and with a dorsal furrow 

 enclosed by two palisade-like rows of hairs. Wings brown with brown 

 veins; costa blackish, reaching about to the middle; 1 more than double 

 2 + 3; fork small, to very small, angle acute; costal cilia short and 

 fine; fourth vein issuing before the base of the fork, straight in its 

 first part, then curved slightly upwards and again downwards towards 

 the end, Halteres black. 



Female. Antennæ smaller than in the male, third joint more 

 roundish; clypeus a little more protruding. Abdomen with five tergal 

 piates, the fifth narrowed. 



Length 3 — -3,5 mm. 



D. crassicornis is rather common in Denmark; Ordrup Mose, 

 Ermelund, Hareskov, Geel Skov, Ruderhegn, Gurre, and in Jutland 

 at Hejls south of Kolding, Grejsdal and Frijsenborg; the dates are 

 ^Ve — "^/g; I generally took it with the net on bushes, and it is especially 

 an autumnal species; the male seems to be much more often met 

 with than the female, I have several times taken the male in some 

 numbers, but in all only one female; Zetterstedt on the other hånd 

 records the female as the more common. I possess a specimen in which 

 the third vein has no fork at all. 



Geographical distribution: — ■ Europe down into Italy; towards 

 the north to middle Sweden; it is also recorded from North America. 



2. D. concinna Meig. 



1830. Meig. Syst. Beschr. VI, 221, 28 {Phora). - 1848. Zett. Dipt. Scand. 

 VII, 2875. Obs. {Phora). - 1864. Schin. F. A. II, 345 {Pliora). — 1901. Beck. 

 Abhandl. zool. bot. Gesell. Wien, I, 24, 11, Taf. I, Fig. 13 [Pliora). — 1906. 

 Wood. Ent. Month. Mag. 2, XVII, 195 [Phora). — 1910. Kertész, Cat. Dipt. 

 VII, 390 [Phora). - 1914. Biues, Bull. Wisc. Nat. Hist. Soc. XII, 94. - 1918. 



