107 

 Genus LXXII. HIPPOBOSCA. 



GENERIC CHARACTER. 



Antenna filiform. Mouthy with a bivalve, cy- 

 lindric, obtuse rostrum, shaking as if loose. 

 Body depressed. Feet armed with many 

 nails, or claws. 



General Observations, 



The Hippoboscse, which are generally known 

 by the name of Horse-flies, are found in woods 

 and marshy places, sticking, whenever they 

 have an opportunity, to the bodies of horses 

 and other animals, and sucking their blood, 

 upon which alone they subsist. 



They attack those parts of the body least de- 

 fended by hair, particularly the belly and the 

 buttocks of the horse ; but they produce the 

 greatest degree of inquietude when they get 

 under the tail. If driven off, they will, after a 

 short flight, return with obstinate perseverance, 

 and again stick to the body of the animal. Sheep 

 are infested by a particular species, well known 

 by the name of the Sheep-Tick, and remark- 





