138 Tachinidae. 



as in the other species. Scutellum with five or six marginal bristles 

 on each side, all strong. Abdomen black, shining, sometimes some- 

 what bluish or greenish; it is not pruinose, or, seen quite from behind, 

 very indistinctly. Abdomen has short, dense black hairs, and a row 

 of marginal bristles on fourth segment and some on apical part of 

 fifth. Genitalia sliaped as in rudis^ upper forceps iikewise carinate 

 along middle, elongated triangular and cleft only at apex; arms 

 of lower forceps rounded at end. Legs black and black-haired; tarsi 

 shorter than tibiæ, front tarsi robust, third and fourth joint as broad 

 as long. Wings more or less yellow, especially at base; veins yellowish 

 to brownish. Squamulæ yellow or yellowish. Halteres yellow. 



Female. Similar; frons broad, broader than the eye. 



Length 5,5 to nearly 10 mm. 



P. vespillo is not rare in Denmark but, however, much less 

 common than rudis; Ermelund, Dyrehaven, Egebæks Vang, Vedbæk, 

 Ruderhegn, Donse, Hillerød, Frerslev Hegn, Nøddebo, Grib Skov; 

 in Jutland at Sønderborg, Skeide, Sandager, Hørup Hav, Kliplev, 

 Frijsenborg, Marselisborg and Horsens; the dates are ^'^/^ — ^^s- 

 It occurs in the same localities as rudis and together with it. 



Geographical distribution: — Europe, towards the north to 

 middle Scandinavia; it is also recorded from North America. 



P. atramentaria Meig. with black and shining thorax and ab- 

 domen, and with the interesting character that the common stem 

 of subcostal, radial and cubital vein is ciliate as in Phormia, has 

 hitherto not been found in Denmark. 



19. Pbormia R. D. 



{Protophormia Towns. 1908.) 



Medium sized species of blue or greenish colour, with shght or 

 quite without pruinosity. Head a little broader than thorax, some- 

 what flat behind, higher than long. Frons in male narrow, in female 

 broad, almost not protruding. Jowls about -half the height of the 

 eye. In male ocellar and inner vertical bristles present, in female 

 also outer vertical and two fme orbitals. Postocellar and occipital 

 bristles small. Occiput all black-haired (in the Danish species). 

 Frontal bristles reaching to insertion of antennæ, in female the 

 uppermost directed outwards. Cheeks bare. Vibrissal ridges con- 

 verging below; vibrissæ short, but numerous, ascending to a little 



