BRITISH SPECIES OF DIPTEROUS GENUS FANN1A 233 



THE BRITISH SPECIES OF THE DIPTEROUS 

 GENUS FANNIA, Rob. Dsv. 



By J. R. Malloch. 

 ( Concluded from page 209.) 



27. similis, Stn., £ . Black-grey; eyes nearly confluent, irons and 

 jowls hardly projecting ; antennae shorter than face, third joint 

 hardly twice the second ; arista bare • thorax somewhat shining, 

 sides and dorsum behind more distinctly dusted; abdomen 

 broader, and behind less pointed than in soa'e//a, dorsal line 

 narrow, not dilated on the segments ; anal organ small ; legs 

 black, knees and base of fore tibiae more or less yellow ; mid 

 femora as in sociella but not so distinctly thickened, the antero- 

 ventral surface with a row of nine bristles to beyond the middle, 

 the first three weak, the next four longer and stronger, the last 

 three short but strong, followed by a row of about twelve short, 

 nearly equal bristles close together without a break to the tip ; 

 the postero-ventral row longer and more equal in size to the 

 constricted portion of the femora, a shorter row on that part ; 

 mid tibice gradually thickened, pubescence fairly long at the 

 base, and increasing in length to the middle, of equal length 

 from middle to tip, bristling normal ; hind femora as in sociella, 

 tibiae with the usual four bristles ; in other respects as 

 sociel/a, but the last portion of the fourth vein about three 

 times the penultimate. 



$ . Stein says that the $ is similar to that of sociella, except 

 that the middle stripe is about twice as broad as the 

 orbits at its narrowest part, and the lower fronto-orbital bristle 

 is nearer to the eye-margin than to the middle stripe. 5 mm. 

 I have received this from Mr A. E. J. Carter, Musselburgh, 

 29th June 1905. May be separated from serena by the larger 

 size, broader shape, greyer colour, and stronger antero-ventral 

 bristles on mid femora. 



28. postica, Stn., &. Black, shining; eyes narrowly separated; 



frons and jowls hardly projecting ; antennas of moderate 

 IO 2 G 



