DUEHAM DIPTERA. 99 



XVI. 153. 



4 (3). Antennae much longer than the head, all shining 



black in the male, the first joint in the female 

 longer than the third, and scarcely thicker. 



(903. italic a, Mg.) 



5 (2). Third antennal joint with five rings, widened at the 



base, and cut out on the upper side (III. 9). 



6 (17). Eyes distinctly hairy. 



7 (14). V.3.a. without any recurved veinlet at its base. 



154. Therioplectes, Zlr. 



8 (9). Legs black. (9°4« wicans, Mg.) 



9 (8). Legs with at least the tibiae more or less yellow. 



10 (11). Abdomen mostly grey brown. 



905. Therioplectes montanus, Mg. 

 Waskerley, 1 ?, 5-7-01. I am not at all sure of 

 this identification. 



11 (10). Abdomen largely yellow, leaving only an undefined 



dark dorsal stripe. 



12 (13). Antennae with at least part of the first two joints dark, 



a brown spot at the base of 0.3.b., no orange 



warts at the sides of the dorsum. 



(906. tropicus, Mg.) 



13 (12). Antennae all yellow except the dark tip, no brown 



spot at the base of 0.3. b. Dorsum with orange 

 side-warts. 



907. Therioplectes solstitialis, Mg. 

 One female caught by Mr. Greenwell in the neigh- 

 bourhood of Bishop Auckland. 



14 (7). V.3.a. with a recurved veinlet at its base. 



155. Atylotus, O-Sack. 



15 (16). Whitish-grey looking woolly-haired species. 



(908. rusticus, F.) 



16 (15). Dirty-yellow looking species with short felt-like hairs. 



(909. fulvus, Mg.) 



17 (6). Eyes bare, or only a few hairs apparent, 



