Tin: 5 



small conical va 



the regurgitation of the food. Tl in- 



sist each of a bunch of foil 

 into the floor of the mouth. 



The oesophagus ie d by the crop I' 



dilates rapidly in tin- head, ami again enlarges before pass- 



o out of the head, and at the point of first expansion 

 enlargement there begins a circular orobliqui 

 armed with a Bingle or two alternating rows of simple spine- 

 like teeth. Just after the crop leaves tin- head, the folds 

 become longitudinal, the teeth arranged in rows, each row 

 formed of groups of from three teeth, which point 



backward so as to push the food into tin- stomach. 

 in the crop that the "mol thrown out by the 



Tli' ntricv ill in the locus 



oked in dissert ion. while in the greei 

 large and armed with sharp teeth. A trans 

 tin- crop of tie- cricket shows that there are 

 alar teeth armed with spines and hairs il It fori 



a neck or constriction between the crop and I 

 1- may In- studied by laying the alimentary canal i ith 



a pair of fine - , and is then seen to be armed with 



tlat folds, suddenly terminating posteriorly, where I 

 tin.- Btomach (chyle-stomach, ventriculus) b< I 



yle-6tomach is about one half as thick as the crop, when 

 the latter is distended with food, and une 



diameter throughout, being much paler than tin- redd 

 cr >p. and of a flesh-color. 



From the anterior end arise six large pouch< 

 tri . whi.-h an- dilatations of the trui 



and probably serve to present a larger Burl which 



the chyle may escape into the body-ca^ ity and mix with the 

 blood, there being in insects no lacteal \ 

 system. 



The stomach ends at the posterioi fourth ab- 



dominal segment in a slight constriction, at which point 



