DURHAM DIPTEEA. 333 



XLII. 563. 



563. Sphenella, Lw.; 565. Icterica; 567. Tephritis, Ltr.; 

 568. Euaresta, Lw.; 569. Urellia, Dsv. 



1 (5). V.3. bearing a row of bristles on the upper side. 



2 (3) (4). Wings with four dark brown patches, besides the 



numerous pale yellow parts and clear round spots. 

 2441. Tephritis miliaria, Schrk. 

 Hesleden, 9 $ and 1 ?, August, 1 899-1 902. 



3 (2) (4). Wings with the brown showing most in an in- 



distinct double horse-shoe mark from O.6 1 to the 

 tip ; four distinct equal, round, clear shining white 

 spots in a long row between V.3. and V.4. 



(2442. T. corniculata, Fin.) 



4 (2) (3). Wings dark brown with a sharp large clear spot on 



each side of X.4., and numerous other pale yellow 

 and clear spots. (2438. /". westermanni, Mg.) 



5 (1). V.3. without bristles. 



6 (35). Wings with the lattice work covering the greater part 



of the wing, the clear spots not so arranged round 

 the wing margin as to cause the dark parts along 

 the margin to assume the form of rays. 



7 (20). Proboscis lengthened, the comparatively narrow 



suckers elbowed backwards ; abdomen usually 

 with dark markings. 



8 (9). Wings with complete latticed bands, the general 



lattice work rather incomplete. 

 2435. Sphenella marginata, Fin. 

 Hesleden, 1 $, 3 ?, August, 1900. 



9 (8). Wings without complete bands, the dark parts com- 



pletely broken up by lighter spots. 



10 (15). Stigma brown with two pale spots. 



11 (12). Five clear spots, sometimes almost run together on 



the margin between the ends of V.I. and V.2. 



(2440. T. parietina, L.) 



(Larvae in stalks of Arte?nisia vulgaris). 



12 (11). Only three or four clear spots between V.I. and V.2, 



