1905.] Ill 



8. P. fasct'pes Meig. : Walker's description of this species is unmis- 

 takable, and ho says " Not rare (B. I.)-" I have not met 

 with it niysell:', but Dr. D. Sharp took a male in the New 

 Forest about the beginning of September, 1901. 



4. P. eleganiula Meig. : very rare to me, but Col. Terbury has taken 



it at Tarrington and Aviemore. It is a conspicuously hand- 

 some species. 



5. /-•. nemorum Meig. : the smallest species of the genus and probably 



not uncommon, but I have only seen stray specimens from 

 Somerset, Hampshire, Sussex, Middlesex, and Suffolk. 

 G. P. rivalis Lw. : Col. Terbury took one male of this well marked 

 species at Aviemore on June 4th, 1904. Its small size and 

 peculiarly haired last joint of the front tarsi distinguish it 

 at once. 



7. P. patula Eadd. : Col. Yerbury took a male at Aviemore on 



August 26th, lI'OO ; the coxal spine upon close examination 

 can be seen to be composed of three closely ajjproximated 

 bristles. The species is quite distinct from P. longilaviellala 

 Kowarz. which 1 possess, and which has no coxal spine, 

 coxae, especially the front pair, densely white haired, front 

 femora white haired, hind femora black to the very base, 

 face much narrower, and arista not perceptibly dilated. As 

 I have mentioned above it is very probable that P. gravipes 

 Wik., may be a synonym of one of the above species, and 

 neither of them ought to have been described as new without 

 some reference to it. 



8. P. crassipes Meig. : in various localities from Devonshire to 



Golspie, and sometimes faii-ly common. Becker's P. patelli- 

 tarsis from Siberia is an obvious synonym, as all the minor 

 distinctions pointed out by him do occur in P. crassipes, and 

 therefore instead of adding to its distinction only tend to 

 prove its identity. In all probability the outer lamellae in 

 his single specimen had the fork broken off, as is not un- 

 commonly the case in these long delicate lamellae, or it might 

 be concealed in the dried up convolutions. It is only 

 another of Becker's innumerable species founded on a single 

 specimen ; surely in such cases a mere note of an apparent 

 difference should be sufficient without overloading our 

 synonymy. 



9. P. pectinata Lw. : I caught this species near Richmond in Surrey 



on July 19th, 1868. 



