198 STOMACH BOTS. 



two, of two articulations, last rounded, situated in a 

 depression on each side the mouth. Membrane of 

 the wings lax and puckered. 



STOMACH BOTS. 



c 1. Equi. Oe. The Knee Bot, or great spotted Horse Bot. 

 Wings opaque white, with a golden tinge, a transverse 

 black wave and two spots near the extremity; a 

 minute black raised dot near the base of the wing. 

 Abdomen reddish brown, with black spots and points. 

 Legs red. Female with lengthened abdomen, curving 

 underneath; male obtuse. 



In meadows, laying its eggs or nits on the knees, mane, 

 and sides of horses. 



Egg white, oblong, pointed, the other extremity obtusely 

 truncated, with a lid. Larva or Grub barrel-shaped, 

 at one end tapering, obtuse at the other, covered with 

 a thick skin, beset with a double row of prickles 

 round each joint, alternately placed. 



In the stomach of the horse, to which it adheres by two 

 short black hooks, one each side the mouth. 



The Pupa or Chrysalis oval, dark red, rough with 



prickly points, under dung. 



" 2. Hemorrhoidalis. Oe. The Lip or Fundament Bot. 

 Wings without spot, brown. Face white, antennae in 

 a black pit or depression. Body thinly covered with 

 hair, greyish in the middle of the thorax and abdomen 

 black shining, base of the latter white, and extremity 

 red orange. Beneath grey, hairy. Legs pale red. 



In meadows, laying its eggs on the lips of the horse. 



Egg black, oblong with a petiolus or foot stalk. 



Larva white, with spines or prickles like the former, 

 but less and rounder. 



