Pomona College Journal of Entomology 



667 



Figure 219 

 A, Dorsal view of anterior end of Mecistocephalus limatus (Wood), showing 

 the characteristic form of cephaHc plate and its frontal suture, the narrow basal 

 plate with the pleura; exposed each side, the much exposed prehensorial feet, and the 

 antenna;. B, First and second maxillae of the same showing the separation 

 of the coxse of the first and the long palpus membranous apically and bearing no 

 lappets; note also the extensive fusion of coxre of second maxillx. C, Dorsal view 

 of anterior end of Arrup pylorus gen. et sp. nov., with the prehensorial feet removed; 

 it shows the cephalic plate with antenna?, the much overlapped basal plate with 

 the pleurae each side. D, First and second maxilkc of the same, showing particularly 

 the complete separation of the cox;e of the second pair as well as those of the first; 

 contrast with B. E, Prehensorial feet and prosternum of the same; note the char- 

 acteristic teeth borne on mesal margin of first joint. 



