150 



INDEX. 



Tetanocera, 40 



Texas. 112 



Thaumastophila, 4J, 53, 133 



Thaxter, R., 17 



theca, 26 



thoracis (Mycodrosophila), 63, 106 



thorax, 27-31 



tibia, 29 



Titanochoeta, 16, 49, 50, lOS, 116, 133 



description and distribution, 53 

 de la Torre, C, 3, 86 

 torrei 



description and distribution, 86 



eggs, 19 



key, 69 

 trachea;, 20, 23 

 transversa, 80, 109, 114 



courtship, 7 



description and distribution, 81 



eggs, 19 



key. 67 



spermatheca, 37 



variability, 41 

 transverse suture, 28 

 Trinidad, 114 

 tripunctata, 84 



chromosomes, 39 



description and distribution, 82 



eggs, 19 



key, 67 



spermatheca, 37 

 Tristan, J. F., 3, 75 

 tristani 



description and distribution, 75 



key, 70 

 trochanter, 29 



Trypetinae, 8, 19, 22, 35, 38, 40 

 unipunctum (Scaptomyza), 109, 114 

 Unwin, E. E., 19, 24, 85 

 Uranucha, 49, 107 

 Utah, 109 

 uvarum, 89 

 valida, 106 

 varia (Leucophenga ), 33, 37, 59, 106 



distribution, 60 



key, 60 



puparium, 24 



spermatheca, 35, 36 

 variability, 41 

 venation, 29 

 ventral plates, 32 

 Vermont, 112 

 vertical bristles, 26 



verticis 



description and distribution, 87 



key, 09 

 vestigial, 120 

 vibrissa, 25, 26 

 Villeneuve, J., 77, 91 

 Viola, 122 

 Virginia, 109, 112 

 virilis, 120, 121 



chromosomes, 39 



courtship and mating, 7 



description and distribution, 97 



eggs, 19 



key, 67 



mutations, 14 



ovipositor, 32 , 



puparium, 23 



spermatheca, 37 

 visual stimuli, 10 

 vittata (Phortica), 57 

 vittata (Scaptomyza), 64, 65, 106 

 vittatifrons 



description and distribution, 103 



key, 68 

 Walker, F., 65, 66, 71, 103 

 Warren, D. C, 13 

 Washington, 112 

 Wesch6, 36, 37 

 West Virginia, 112 

 Wiedemann, 55 

 Williams, C. B., 72 

 Williston, S. W., 51, 73, 79, SO, 87, 98, 102, 103, 



104 

 willistoni, 112, 120 



chromosomes, 39 



courtship and mating, 7 



description and distribution, 89 



key, 67, 69 



mutations, 14 



spermatheca, 37 

 Wilson, E. B., 13 

 wings, 27, 29-31 

 Wisconsin, 112 

 WoUaston, 99 

 van der Wulp, 53 

 Wyoming, 112 

 yeast, 15-16 

 Zaprionus, 30, 35, 50, JOS, 115, 133 



description and distribution, 58 

 Zeleny, C, 27 



Zygothrica, 16, 30, 35, 44, 50, 108, 113, 115, 116, 

 133 



description and distribution, 55 



