Anlliomyid genera Hmnmomyia and Hyhphila. 317 



females have been examined taken in Nottinghamshire in 

 May and early June by Prof. J. W. Carr and Dr. Hmiter, 

 and a very grey female was taken by Mr. C. G. Lamb in the 

 New Forest in July 1902. The name is new to the British 

 List. 



The single type specimen of H. ohtusa in Zetterstedt's Col- 

 lection is a female, and not a male as Zetterstedt described 

 it. This is unfortunate, because the females are much more 

 difficult to identify than the males. One point is quite 

 certain — it is not the female of the obiusa of Stein and 

 Schnabl (a species which is renamed personata in the follow- 

 ing pages). The type specimen is smaller and greyer than 

 British ohtusa as described above, but has the same short 

 but fairly strong pre-alar bristle, a distinct central stripe 

 on thorax, a tessellated abdomen with strong bristles on the 

 hind-margin of last visible segment (all near the margin), 

 and postical cross-vein somewhat sloping and sinuate ; the 

 front tibiae, however, bear only one bristle behind instead 

 of the usual two. Specimens identical with British ohtusa 

 certainly occur in Sweden, such being present in the 

 Collection at Stockholm and in Ringdahl's Collection; 

 moreover Ringdahl had named his specimens ohtusa after 

 an examination of Zetterstedt's type. Schnabl and 

 Dziedzicki appear to have figured the male genitalia of 

 this species as that of huccata, while the H. jankowsJcii 

 described in the same work, " Die Anthomyiden," 1911, 

 must be very closely allied. 



3. Hy. dissimilis Villeneuve, Ent. Mo. Mag. 1920, p. 227. 

 (Plate VIII, fig. 6.) 



(J, Much resembling ohtusa, but distinguished by the characters 

 given in the Table of Species and by the very different genitalia. 

 The comparison of longer series of specimens will probably reveal 

 other characters. It would appear to be usually smaller, and dis- 

 tinctly less hairy, especially the long hairs (as distinct from bristles) 

 on the scutellum and along the sides of the thorax above the noto- 

 pleural depression, are less numerous than in obtusa. The hairs 

 behind front femora are rather shorter and consequently more 

 differentiated from the rows of bristles. The hind tibiae bear only 

 4-5 shorter bristly hairs behind. 



$. Very similar to ohtusa having two bristles behind front tibiae 

 but only one distinct pre-apical bristle to those tibiae. Discal cell 

 narrower at end, the postical cross- vein closing the cell being shorter. 



