DURHAM DIPTERA. 225 



XXXI. 353. 



8 (7). Fore margin of the second, third, and fourth segments 

 each with a broad silvery white shimmer. 



(1729. capitata, Deg.) 



358. Somolia, Rnd. 



1736. Somolia simplicitarsis, Ztt. (rebaptizata, Rnd.) 

 Hesleden, 2 $, August, 1900. 



360. Mintho, Dsv. 



1 (2). Abdomen only yellow at the sides ; costal spine 



present. (1738. prceceps, Scop.) 



2 (1). Abdomen chiefly yellow ; costal spine absent. 



(1739. compress a, F.) 



361. Melanota, Rnd. 



1740. Melanota volvulus, F. 

 Hesleden, 7 $ and 1 ? ; Gibside, 1 $- , July- August, 

 1896-1901. 



363. Macquartia, Dsv. 



1 (8). Palpi yellow, the tip sometimes blackish. 



2 (5). Legs yellow. 



3 (4). V.4. beyond the bend, somewhat outward bent ; arista 



almost quite bare. ( I 74 2 - dispar, Fin.) 



4 (3). V.4. beyond the bend, quite straight ; arista distinctly 



pubescent. (1748. flavipes, Mg.) 



5 (2). Legs black. 



6 (7). X.5 2 rather near the bend of V.4. ; frontal stripe of 



the female brown. ( I 743- tenebricosa,M.g.) 



7 (6). X.5 2 nearly in the middle between X.4. and the bend 



of V.4. ; female frontal stripe black. 



(1744. affinis, Schin.) 



8 (1). Palpi black, the extreme base sometimes brown. 



9 (12). Grey species. 



10 (11). Abdomen dark brown with grey dusting and brown 

 spots. ( x 745- grisea, Fin.) 



o 



