634 



Mr. L. G. Saunders on the La 



rva. 



terminates in two tapering conical processes [cp) ; the end 

 of the labrum is membranous, bearing several sensory 

 processes {s7ip) and a lateral fringe of short hairs {fh). 

 From tlie end of the median dorsal strip of chitin, the 

 labrum, as seen from the side, curves gradually downward 



Fio". 1. 





2.:'.:'H-4 Uj 



■10 ■ \ 



Vf ■:,-.-'■/ 





/< 



/ 



ri. 





^^^•^ 8 



I. Head of larva, front view, X 70. II. The same, lateral view, X70. 

 ^-D, protuberances of head; 1-14, chsetse and sensor^' pits; 

 an, antenna; cl, clypens ; fi', frons ; Im, labium; /r, lubrum ; 

 iud, mandible ; mx, maxilla, 



until it recurves to form the roof of the mouth ; the ventral 

 side of this anterior portion consists of a single curved 

 chitinous plate (vp), above which on the anterior surface are 

 two divided sensory processes. The remainder of the ventral 



