TACHINID.E. 



371 



70. Eyes descending below vibrissae Telothyria. 



Eyes not descending below vibrissae. . . . Clytiomyia. 



71. Palpi absent (7O). . , Beskia. 



Palpi present. ......... 72 



72. First vein partly bristly. ....... 73 



First vein bare. ......... 74 



73. Two orbital bristles in the male; apical pair of scutellar bristles 



long Ginglymyia. 



No orbital bristles in the male; apical pair of bristles short (32) . 



Epigrimyia. 



74. Proboscis not geniculated near middle. .... 75 

 Proboscis geniculated near middle (78). . . Siphona.* 



75. Facial ridges bristly on at least the lower half. . Isoglossa. 

 Facial ridges never bristly on more than the lowest fifth (82) . 



Epigrimyia. 







76. Last section of fifth vein or its fold more than one-half as long as 



the preceding. ......... 77 



Last section of fifth vein not more than one-third the length of the 

 preceding. .......... 88 



77. First vein wholly or partly bristly 78 



First vein bare. ......... 81 



78. Head at vibrissae as long as at base of antennae. . . 79 

 Head at vibrissae shorter than at root of antennae (8) . Plagia. 



79. Fifth vein bristly. ....... Plagiomima. 



Fifth vein bare. ......... 80 



80. Sides of face with strong bristles. . . . Goniochseta. 

 Sides of face with short, scattered hairs (79). Siphoplagia. 



81. Sides of face on lower half bare. ..... 82 



Sides of face with macrochaetae or bristly hairs on at least a por- 

 tion of lower halt. ........ 85 



82. Facial ridges bristly on their lowest third only. ... 83 

 Facial ridges bristly at least to their upper third. .. . 84 



83. First posterior cell closed in the margin (62). Heteropterina. 

 First posterior cell long petiolate (25). . . Euscopolia. 



* Bezzi would call this genus Bucentes L/at. ; see Muscidae. 



Fig. 152. Tachinidae. 93, Demoticus venatoris, head; 94, H t/phantrophaga 

 hyphantriw, head; 95, Jurinia hystricosa, wing; 96, Paradidi/ma, sp.; 97, 98, 

 Plagiprospherysa parvipaljtis, wing, head: 99, Micropthalma disjuncta, head; 

 10Q,Jurinella ambigua, head; 101, Nemorwa niyricornis, head; 102, Archi/tas 

 apicifera, antenna; 103, Dichocera lyrata, head; 104, Dichocera li/rata, anten- 

 nae from in front; 105, Muscopteryx, sp. head; 106, Hilarella decens, head; 

 107, Neotractocera , sp., head; 108, Pseudotractocera neomexicana, head: 109, 

 Frontina archippivora, head; 110; Senotainia rubriventris, head; 111, Gcediop- 

 sis mexicana, head; 112, Leskia analis, wing; 113, fiombyliomyia abrupta, head; 

 114, Chceloglossa picticornis, (the long, slender proboscis omitted) head. 



