Tachinidae. 71 



43. Discai angle with a long veinlet or fold; frontal 



bristles descending below middle of cheeks .... 84. Tricholyga. 

 ■ — Discai angle without or with a quite short veinlet ; 



frontal bristles generally less descending 44. 



44. Both sexes with. one orbital bristles; claws and 

 pulvilli short; first posterior cell ending rather 



near apex of wing ; tibiæ partly yellow or reddish . . 59. Monochaeta. 

 — ■ Female with two orbital bristles, male without 

 or sometimes {Thelymyia, Blepharomyia) with 

 two 45. 



45. Cheeks hairy or with bristles 46. 



■ — Cheeks bare 47. 



46. Cheeks hairy 119. Epicampocera^. 



■ — Cheeks with a row of bristles 134. Blepharomyia. 



47. Apical scutellar bristles erect or proclinate, 

 crossing; frons broad, of equal breadth in both 

 sexes, with almost parallel or a little diverging 

 margins; male without, female with two orbital 



bristles; claws and pulvilli small in both sexes. 70. Phryxe. 



— Apical scutellar bristles directed backwards, 

 sometimes small; if erect, claws and pulvilli in 



male elongated 48. 



48. Vibrissæ ascending to near middle or fully, of 



somewhat equal length 49. 



• — Vibrissæ not so ascending and being small up- 



wards 50. 



49. Frontal bristles descending at least to lower 

 third of the eye; jowls broad, one third of the 

 height of the eye or more; claws and pulvilli not 

 elongated, front tarsi in female dilated; first post- 

 erior cell ending rather near apex of wing .... 91. Lypha. 



— Frontal bristles descending only to middle of the 

 eye; jowls less broad; claws and pulvilli in male 

 elongated; front tarsi in female simple 71. Zenillia. 



50. Jowls about half as broad as the height of the eye 



or more 51. 



— Jowls considerably less broad to rather narrow 52. 



51. Scutellum and legs yellow (in our species) 65. Phryno. 



— Scutellum and legs dark 67. Bavaria. 



52. Third antennal joint as long as or not much 



longer than second; two sternopleural bristles . 66. Nemorilla. 

 ■ — Third antennal joint at least twice as long as 

 second and generally much longer; three or four 

 sternopleural bristles 53. 



If a species with touching eyes in male, arista thickened only just at base, 

 more or less yellow legs and no præsutural intraalar bristle, see Macquartia 

 dispar under Rhinophor inae. 



