DUEHAM DIPTEEA. IK) 



XXIII. 195. 



10 (7). Halteres black or brown. 



11 (12). Dorsum with one stripe, or unstriped. Hind legs 



often dark. Tibiae not bristly. 



1060. Hilara mantcata, Mg. 

 Bishop Auckland, i $, July, 1900. 

 (1058. squalens, Ztt.) seems to be a slightly less 



pubescent variety of this. 



12 (11). Dorsum with two stripes, or unstriped. All legs 



yellow, tibiae bristly. (1068. lurida, Fin.) 



13 (6). Legs black or dark brown. 



14 (24J-) (25) (30). Dorsum unstriped. 



15 (16). Dorsum slate-coloured. ( I0 57- niveipennis, Ztt.) 



16 (15). Dorsum black. 



17 (20). Tibiae bare. 



18 (19). Hind femora thickened and curved. 



(1056. nitidula, Ztt.) 



19 (18). Hind femora normal. ( io 59- pinetortim, Ztt.) 



20 (17). Tibiae with bristles on the outer side. 



21 (22). Wings quite clear. (106 1. clypeata, Mg.) 



22 (21). Wings darkish. 



23 (24). Shining black. Female hind tibiae not wedge-shaped. 



1069. Hilara chorica, Fin. 

 Escomb, 3 $, May-June, 1899. 



24 (23). Dull black. Female hind tibiae wedge-shaped. 



(1062. nigrina, Fin.) 



24£ (14) (25) (80). Dorsum with two stripes. Legs dark 



brown. (1063. fuscipes, F.) 



25 (14) (24£) (30). Dorsum with three stripes. 



26 (27). Tibiae nearly bare on the outer side. 



1055. Hilara maura, F. 

 Common everywhere. 



27 (26). Tibiae with bristles on the outer side. 



28 (29). Wings brownish in both sexes. Fore metatarsus 



very much thickened in the male. 



(1053. pilosa, Ztt.) 



