500 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY 



[Bull. 



Sternal, 81 



tergal, 81 



ventral, 81 

 Valvulae internae, 114 



laterales. 111 



mediales, 114 

 Vas deferens, 68, 154 

 Vein, 57 



anal, 58 



costal, 57 



radial, 58 



subcostal, 57 



wing, 41, 42, 48, 52, 57 

 Venation, 42, 52, 57, 01, 148 

 Ventral plate, 113 



process, 45 



valve, 81 

 Vertex. 15, 21 



anterior, 15, 20, 21 



posterior, 15, 20, 21 

 Vertical orbits, 21 



triangle, 15, 20. 21 

 Vesiculum, 107 

 \'estigial segment, 33 

 Vestiture. 13 

 Vibrissal angles, 18 



ridges, 18 

 Vinculum, 106-108 

 Visceral segments, 78 



Vitta, frontal, 19, 20 

 Vohicclla, 12, 67 



Warble flv. 104. 113 



Wing, 48. 49, 53. 57-59, 60-62 



attacbment, 42 



bud, 61 



case, 56, 61 



metatboracic, 61 



expanse, 10 



hind, 56 



mesotboracic, 42 



metatboracic. 42. b\ 



modifications, 11 



plate, 58 



pleural fulcrum, 51, 53 



process, 48 



anterior, 57 

 posterior, 58 



veins, 41, 42, 48, 52, 57 

 Wing-bearing plate, 46. 48. 51, 58 

 Winglets. 58, 59 



Xyela, 85 

 Xylomyiidae, 116 

 Xylophagidae, 116 



Zygapopbyses. Ill 

 Zygostipes. i2> 



