334 DURHAM DIPTERA. 



XLII. 563. 



13 (14). Wings broad with blunt tips; scutellum four-bristled; 



colour of the male clear orange ; female brown. 



(2443. T. flavipennis, Lw.) 

 (Larvae on Achillea millefolium). 



14 (13). Wings comparatively narrow and not blunt at the 



tips ; scutellum usually two-bristled : body darker. 



(2444. T. proboscidea, Lw.) 

 (Larvae in round root-galls of Chrysanthemitm 

 leucanthemuni). 



15 (10). Stigma wholly brown, unspotted, or at most with one 



pale spot. 



16 (17). Femora yellow, at most with a dark stripe above. 



(2448. T. elongatula, Lw.) 

 (Larvse on various Compositse). 



17 (16). Femora yellow with black bases. 



18 (19). Stigma with one clear spot ; blackish brown species 



with pale yellow hairs. (2446. T. tessellata, Lw.) 

 (Larvae in Dandelion and Sow Thistle flowers). 



19 (18). Stigma generally unspotted ; grey species with grey 



hairs. 



2447. Tephritis absinlhii, F. 

 Hesleden, 1 $, July, 1899. 



20 (7). Proboscis not lengthened, the comparatively broad 



suckers seldom elbowed backwards ; abdomen 

 usually unspotted. 



21 (26). Tip of the wing clear; end of V.3. and V.4. each with 



an isolated dark spot. 



22 (23). Wings not yellow at the base, the dark parts dark 



grey and very much broken up. 

 2449. Tephrilis hyoscyami, L. 

 Evenwood, 1 ?, June, 1897. 



23 (22). Wings yellowish at the base, the dark parts deep 



brown, band-like, and not much broken up. 



24 (25). 0.5 2 free from the dark band except at its outer end. 



2456. Tephrilis bardance, Schrk. 

 Hesleden, 10 $ and 2 % August, 1902. 



