Empididae. 235 



spined as in the other species, the hairs on the ventral side of the 

 middle tibiæ stronger. Wings hyaline. Veins blackish. Stigma faint, 

 yellowish, elongated, the radial vein not curved below it; discai 

 and anal cell present, anal vein long, weak. Halteres whitish 

 yellow. 



Female. Agreeing with the male; frons slightly broader, Ovipo- 

 sitor somewhat short. 



Length 3,5 mm. 



This species it at once recognised by the elongated, not roundish 

 wing stigma, below which the radial vein forms no curve; in the 

 male the genitalia are also characteristic. Mik says 1. c. that the 

 antennæ have „ein kurzes Endgriffelchen" , but there is a short, 

 but distinct arista; Mik's figure 17 looks as if the arista was bro- 

 ken off. 



H. melanocephala is, as the two preceding species, rare in Den- 

 mark, only four specimens, a male and three females have been taken, 

 one in earlier time, without particular locality, and three at Hald near 

 Viborg on ^Ve and ^^k 1910 (the author). It occurs on quite the 

 same localities as the two preceding, and at Hald I took it occurring 

 in Company with them. 



Geographical distribution: — Europe down into Italy; towards the 

 north to northern Scandinavia. 



Remarks: The name melanocephala is generally in use for this 

 species, and so also in the Kat. palåarkt. Dipt., and 1 have therefore 

 also used it, but as Haliday considered the species as identical with 

 Empis melanocephala Fabr. (Chelipoda), it should correctly bear the 

 next name viz. flavella Zett. 



4. H. raptoria Meig. 



1830. Meig. Syst. Beschr. VI, 341, 10. - 1842. Zett. Dipt. Scand. I, 

 264, 4, et 1859. XIII, 4984, 4. — 1864. Loew, Wien. entom. Monatschr. 

 VIII, 243, 3. — 1903. Kat. palåarkt. Dipt. II, 369. 



Male. Frons and vertex grey ; eyes touching below the antennæ, 

 and with the facets in front enlarged; epistoma white; palpi whitish. 

 Occiput grey, with short, pale hairs. Antennæ yellow, arista darker. 



Fig. 101. Antenna of H. raptoria. X 100. 



fully as long as the third joint (when seen with a lens, in which case the 

 narrowed outer part of the third joint looks as if belonging to the arista. 



