Antliomyid genera liammomyia and HylepMla. 311 



concerning the identity of these specimens, it is to be 

 hoped that these notes will lead to the discovery of the 

 male in this country. 



This species stands in Kertesz' Catalogue under the 

 genus Hydrophoria, but it has since (1916) been correctly 

 placed by Stein in Hammomyia. It is possible that 

 Pandelle's H. ciliosa may prove to be a synonym. 



Hylephila * Rondani, Dipt. Ital. Prodr. vi, 233 (1877). 



TABLE OF SPECIES. 



Males. 



1. (10) Middle tibiae with a bristle beneath, or (unilineata) 



somewhat an tero ventral. 



2. (7) More hairy species. Posterior femora with numerous long 



fine hairs beneath. 



3. (4) Bristle, beneath middle tibiae smaller and placed more 



anteroventrally 1. vnilineata Zett. 



4. (3) Bristle beneath middle tibiae stronger and distinctly ventral. 



5. (6) Thorax viewed from the side with 3-5 fairly conspicuous 



darker stripes, and with the pubescence (as distinct 

 from bristles) long and dense. Middle femora more 

 densely haired behind 2. obtusa Zett. 



6. (5) Thorax viewed from the side with an inconspicuous middle 



stripe only, and the pubescence shorter and less dense. 

 Middle femoia not so densely haired behind. 



3. dissimilis Villen. 



7. (2) Less hairy si^ecies. Posterior femora more bristly than 



hairy. Hind femora with antero- and postero-ventral 

 rows of stouter bristles. 



8. (9) Thorax seldom with any indication of a central dark stripe. 



Hind tibiae with only 2-3 short inconspicuous bristly 

 hairs behind. Postical cross- vein more sinuous. 



4. 'per sonata n.n. 



9. (8) Thorax with a brown central stripe. Hind tibiae with 7-8 



longer finer bristly hairs behind. Pre-alar bristle shorter 

 and finer. Postical cross-vein straighter. 



5. unistriata Zett. 

 10. (1) Middle tibiae without a bristle beneath. 



* It has been suggested that this name is preoccupied in the 

 Lepidoptera (Enum. Ins. in Mus. G. J. Billberg, 1820, p. 81). 

 Billberg's names, however, cannot be considered valid genonyms 

 {v. Walsingham and Durrant, Ent. M. Mag. 1902, pp. 163-170). 

 so Rondani's name can stand. 



