176 



Phoridae. 



a very weak dorsal bristle above the middle, middle tibiæ with a pair 

 at the upper third and a small anterior bristle at apex, hind tibiæ 

 with only a small anterodorsal bristle at apex (they are recorded to 

 have sometimes an abnormal bristle near the middle); the hind tibiæ 

 are simple, withoiit dorsal furrow; hind femora with short, dense 

 hairs below at base. Wings clear and eolourless, thick veins brown, 

 the others fine and white; costa reaching to the middle or fully so, 

 1 somewhat longer than 2; costal cilia short; third vein somewhat 



Fig. 66. Wing of H. citreiformis ^ . 



thickened, without hairs, only with a little bristle at base, that and 

 the first vein rather ciirved; foiirth vein very slightly curved at its 

 origin; only one bristle on alula. Halteres black. 



Female. I do not know the female, it is recorded to have the 

 third antennal joint smaller, shorter and brown, the palpi narrow, 

 and the third vein thicker. 



Length 1,8 mm. 



H. citreiformis is rare in Denmark, I have taken only two spec- 

 imens, both males, in Geel Skov on '/g 1918, on bushes; the species 

 is recorded to frequent the umbels of Heracleum sphondylium and 

 Angelica silvestris. 



Geographical distribution: — Besides from Denmark the species 

 is known from Finland and Britain. 



8. H. vitripennis Meig. 



1830. Meig. Syst. Beschr. VI, 223, 36 {Pliora). - 1848. Zett. Dipt. Scand. 

 VII, 2889 {Trineum). - 1901. Beck. Abhandl. zool. bot. Gesell. Wien, I, 44, 

 35, Taf. III, Fig. 43 {Phora). - 1906. Wood. Ent. Month. Mag. 2, XVII, 264, 

 266 {Phora). - 1910. Kertész, Cat. Dipt. VII, 401. - 1914. Brues, Bull. Wisc. 

 Nat. Hist. Soc. XII, 103. — 1918. Schmitz, Jaarb. Natuuih. Genootsch. Lim- 

 burg 1917, 118. 



Male. Frons low and broad, more than twice as broad as high, 

 but somewhat produced anteriorly in the middle; it is black and 



I 



