35- T. nigrovittatus. 3/ a in. ; face white ; chest black and gray ; body with narrow black and white stripes. 



36. T. astiiti/s. 3/% in.; chest gray ; body blackish, with three rows of gray spots. 



37. T. annulatus. 3/& in. ; light reddish, with white bloom ; white side spots ; wing clear. 



38. T. ferrugatus. 3/& in. ; gray, with rusty edge ; body rusty yellow, end with brown spots; wing clear, a 



brown spot on point. 



39. T. bicolor. 3/6 in. ; gray green ; legs and body rusty yellow, last rings with an olive green stripe. 



Family 13. XYLOPHAQI. Wood Flies. Their larvae live in rotten wood. 



BERIS. Ray Fly. 



1. B. dorsalis. T \ in. ; black ; waist and legs yellow. 



2. B. viridis. -& in. ; green bronze ; body black, with yellow edge and yellow legs. 



XYLOPHAQUS. Wood Fly. 



i. X. americanus. T 7 ff in.; chest sulphur yellow, with a black streak and spot on each 

 side ; body reddish and yellow. 



CAENOMYIA. 



i. C. pallida. ^ in. ; rust yellow ; body paler; wing with yellow veins. 



(28) 



