DURHAM DIPTERA. l6l 



XXVI. 263. 



8 (7). Halteres of the male orange ; female with the basal 



half of the abdomen orange. 



1378. Callimyia amcena, Mg. 

 Bishop Auckland, 1 $, 24-6-02, 1 ?, 8-9-02, 1 $ , 

 31-7-04; Hesleden, 1 $ , 9-8-02. 



9 (6). V.l.b. not spinose; third antennal joint long. 



264. Agathomyia, Verr. 



10 (11). Mid tibiae with a bristle near the middle of the upper 



side. (1380. antennata, Ztt.) 



11 (10). Mid tibiae without any bristle on the upper side. 



(138 1. collini, Verr.) 



12 (5). V.4. forked (V. 17). 



265. Platypeza, Mg. 



13 (24). 0.6. short, V.6 1 being equal to or shorter than V.6 2 . 



14 (21). X.5 2 longer than V.5 6 . 



15 (16). X.4. almost in a line below the end of V.I. a. V.4 1 



shorter than V.4 2 . (*382. consobrina, Ztt.) 



16 (15). X.4. before the end of V.I .a. V.4 1 longer than V.4 2 . 



17 (20). Legs, and usually the antennae and abdomen, partly 



reddish or yellowish ; frons of the male bare. 



18 (19). Darker species, V.4.b. incomplete, abdomen of the 



female not reddish. (*383. modesta, Ztt.) 



19 (18). Paler species, V.4.b. almost or quite complete, 



abdomen of the female reddish with narrow 

 black bands. (1384. rufa, Mg.) 



20 (17). Legs, antennae, and abdomen all black or blackish, 



frons of the male tufted, wings clear in both sexes. 



(1385. atra, Mg.) 



21 (14). X.5 2 much shorter than V.5 6 . 



22 (28). V.4.a. short and strongly arched. 



(1387. dor salis, Mg.) 



23 (22). V.4.a. long and almost straight. (1386. furcata, Fin.) 



24 (13). O.6. long, V.6 1 being distinctly, or at least slightly 



longer than V.6 2 . 



K 



