DURHAM DIPTERA. 317 



XXXVIII. 520. 



2 (1). Wings with at least the X-veins clouded. 



3 (4). Wings with only the X-veins clouded ; small species, 



4 mm. ( 22 93« decrepita, Ztt.) 



4 (3). Wings with the X-veins and the ends of V.I ., 2, and 



3 clouded, 8-n mm. 



521. Neuroctena, Rnd. 



2294. Neuroctena anilis, Fin. 

 Bishop Auckland, 3 $, Hesleden, 3 $, July-August, 

 1900. 



523. Sciomyza, Fin. 



1 (26). Arista plumose. 



2 (9). X-veins not distinctly clouded. 



3 (6). Dorsum shining black. 



4 (5). Antennae entirely orange ; fore tarsi all black. 



(2297. glabricula, Fin.) 



5 (4). Antennae yellow ; third joint partly dark brown ; fore 



tarsi black with white points. 



(2298. nigrimana, Mg.) 



6 (3). Dorsum orange, brown, or grey. 



7 (8). Dorsum grey, not shining. ( 2 3 I 3« lata, Schin.) 



8 (7). Dorsum shining dark brown. (2312. simplex, Fin.) 



9 (2). X-veins distinctly clouded. 



10 (11). Wings with brown bands. (2302. bifasciella, Fin.) 



11 (10). Wings without brown bands. 



12 (19). Arista long-plumed. 



13 (14). Third antennal joint brown at the point. 



(2299. pallida, Fin.) 



14 (13). Third antennal joint entirely orange. 



15 (16). Mid and hind legs all dark testaceous. 



(2315. ruficeps, Ztt.) 



16 (15). All legs yellow. 



17 (18). Proboscis testaceous ; X.4. strongly clouded. 



(2300. fuscinervis, Ztt.) 



18 (17). Proboscis yellow : X.4. slightly clouded. 



2314. Sciomyza dorsata, Ztt. 

 Bedburn, 1 $, July, 1902. 



