Maine State College Experiment Station 



PLATE II. 



Fig. 1. 



Fig. 3. 



THE HORN FLY. 

 (Hmmatohia serrata.) 



Fig. 1. a Egg; 6 Larva; c Puparium; fZ Adult in biting position— enlarged. Fig. 2. Adult 

 position— enlarged. Fig. 3. Fliea in resting position at tlie base of the liorn— reduced. 



