DURHAM DIPTERA. 



65 





XII. 



Family XII— LIMNOBID^E. 





TABLE of sub-families. 



1 (6). V.2. not forked (IV. 17, 18), i.e., only two veins 



between the ends of V.l.b. and V.4.a. 



2 (3). Antennae 14-jointed. Limnobiisle (XII.-A.) 



3 (2). Antennae 16-jointed. 



4 (5). V.I. ending in the costa. V.5. not sharply bent 



downwards. Tibiae not spurred. 



Ramphidin^e (XII.-B.) 



5 (4). V.I. ending in V.2. V.5. sharply bent downwards. 



Tibiae spurred. Cylindrotomin^e (XII.-G.) 



6 (1). V.2. forked (IV. 19-22), i.e., three veins between the 



ends of V.l.b. and V.4.a. 



7 (8). Tibiae not spurred. X.I. b. beyond the base of V.2. 



Eriopterin^e (XII.-C.) 



8 (7). Tibiae spurred. 



9 (12). X.l.b. beyond the base of V.2. 



10 (11). Antennae 16-jointed. Limnophilin^: (XII.-D.) 



11 (10). Antennae 6-10-jointed. Anisomerin^e (XII.-E.) 



12 (9). X.l.b. before the base of V.2. Amalopesle (XII.-F.) 



TABLES OF GENERA. 



Sub-Family A. — Limnobin^e. 



1 (6). Proboscis not longer than the head. 



2 (5). Antennae simple, not comb-like, and the joints not 



stalked. 



3 (4). V.I. a. extending far beyond the base of V.2. Male 



forceps two horny hooks. Limnobia, Mg. (97) 



4 (3). V.I .a. ending about opposite the end of V.2. Male 



forceps two fleshy lobes. 



Dicranomyia, Steph. (98) 



5 (2). Antennal joints stalked ; in the male with comb-like 



side processes (II. 16). Rhipidia, Mg. (99) 



6 (1). Proboscis longer than the head and thorax. 



100. Geranomyia, Hal. (697. unicolor, Hal. 



E 



