44 



PHYSIOLOGY OF THE INVERTEBRATA. 



triangular plate wliich bears two large palps." The maxillary 

 palps iu the Lqndoptcra are greatly elongated, and form a 

 sucking proboscis. The crop projects from the side of the 



Fig. 6. — Ammentarv C.'anai. ok 



THE LEPIDOPTERA. 



a — proboscis (maxillae). I' = sali- 

 vary glands. c = oesophagus. 

 (i = crop. c = chylific ventri- 

 culus. / = small intestine. 



?■ — rectum. A = Malpighian 

 tubules, g = large intestine. 



Fig. 7. — Ai.iMENTAKv Caxai, of the 

 Lakval Lepidoptera. 

 ;« = mouth. = oesophagus. <? = salivary 

 glands /' = spining glands, f = chylific 

 stomach. d = Malpighian tubules. 



<• = intestine /= rectum. 



long oesophagus (Fig. 6). 

 §mall, but is sacculated. 



The " chylific " ventriculus is very 

 The small intestine is short and 

 passes into the wide rectum. In the larvge of the Lepidoptera 

 the oesophagus is short and wide (Fig. 7), and passes to a long 

 chylific stomach. The intestine is short, and terminates in 

 the rectum. Both in the larval and perfect state there are 

 well-developed salivary glands and Malpighian tubules. The 



