17« 



fAiigust. 



invarial)ly eiu'l()sed in cart'iii shelters constructed over theui by ants 

 {GreiJiny>fo(^(isler dohriii). Tlie position and glol>vdar fonn of tlie insects 

 give tliem the appearance of sessile berries growing- upon the plant. The 

 male pnparia are usually concealed ])eneath the stipules of the bamboo. 



Antunina -o/irt to. Green. 

 a. Insects, on twig of bamboo ; nat. size. 

 ' h. Adult female, side view ; X 6. 



Though diifering widely, in form and colouring, from typical species 

 of Antoiiiiia, all the structural characters of the insect, and its early 

 development, are essentiality those of the genus to which it is here 

 assigned. 



Camberley. 



July I7t/i, 1919. 



GNOPHOMYIA TRIPUDIANS BunGROTH: A NEW BRITISH FLY. 

 BY F. W. EDWAKDS, B.A., F.E.S. 



In the summer of 1918 I received for identitication from Dr. D. 

 Keilin, of Cambridge Universit}^, .several specimens of a fair-sized black 

 Tipvilid which evidently' belonged to the genus Gno2)homyia, hut winch 

 I could not at the time name with certainty. A recent re-examination 

 of them shows that they undoubtedly belong to the species described by 

 Bergroth in 1891 as G. iripudians, from a specimen taken in Switzer- 

 land. No species of this genus has hei'etofore been discovered in this 

 country, and the only record of O. tripudians subsequent to Bergroth's 

 seems to be one hy W. Gamkrelidze, who records (Feuille Jeuncs Nat. 



