DURHAM DIPTERA. 347 



XLVIII. 591. 



5 (1). Wings with the X- veins neither clouded nor banded; 



costa not spined. 



6 (7). Wings brown with a clear indistinctly bounded spot 



behind X.5 2 ; abdomen black with the base pale 

 yellowish, and the point of the anus with a white 

 spot. (2567. punctum, Mg.) 



7 (6). Wings clear with brown fore margin; abdomen all 



black. ( 2 57 x « costata, Mg.) 



Family XLIX.— EPHYDRID^E. 



Becker's Ephydridas in German, Berliner Entom. Zeitschrift, 1896, should be 

 consulted. 



TABLE OF SUB-FAMILIES AND GENERA. 



Life history of only one or two species known. 



(52). X.5 1 and X.6. absent; V.l.a. and V.l.b. confluent. 



1 (16). Second antennal joint with a little thorn in front, or 



with a thorn-like bristle (VII. 22), or the upper 

 side of the mid tibiae sometimes with strong bristles. 



Sub-Family Notiphilin^e, Lw. 



2 (5). Costa ending at the end of V.3. 



3 (4). The end of the abdomen in the male with two long 



upward directed bristles ; dull black species ; two 

 pairs of diverging fronto-orbital bristles. 



593. Dicileta, Mg. (2575. caudata, Fin.) 



4 (3). The end of the abdomen in the male without long 



bristles ; dull grey species ; one pair of fronto- 

 orbital bristles. Notiphila, Fin. (594) 



5 (2). Gosta reaching to the end of V.4, 



6 (7) (8). The abdomen flat, and with apparently only three 



segments, the first and the fifth being very much 

 shortened in both sexes. 



595. Trimerina, Mcq. (2586. madizans, Fin.) 



7 (6) (8). Abdomen with five distinct segments in the female, 



but with the first and fifth shortened in the male ; 

 scutellum with six bristles ; shore species. 



600. Hecamfde, Hal. (2598. albicans, Mg.) 



