196 bulletin: museum of comparative zoology. 



Key to Species. 



a. Pairs of legs less than fifty. 



b. Ventral pores occurring on the fu-st sternite; pores on each 

 sternite divided into three areas; cephalic plate scarcely 

 longer than wide. 



Pairs of legs forty-one. 



S. ludcncahli Brolemann and Ribaut. 



bb. No ventral pores on the first sternite; ventral pores, at least 



on the anterior sternites, in an undivided area; cephalic 



plate considerably longer than wide. 



c. Antennae tliree times or more the length of the cephalic 



plate; last article of anal legs longer and conspicuously 



more slender than the penult; pairs of legs ( 9 ) 47. 



S. perditus, sp. nov. 

 cc. Antennae but two times, or less, the length of the cephalic 

 plate; last article of anal legs of nearly same length and 

 thickness as the penult ; pairs of legs ( 9 ) thirty-seven. 



S. bakeri, sp. nov. 

 aa. Pairs of legs near or above sixty. 



b. Prebasal plate not exposed S. gounellei Brolemann. 



bb. Prebasal plate exposed S. paulista Brolemann. 



ScHENDYLURUS LUDERWALDi Brolemann and Ribaut. 



Bull. Soc. ent. France, 1911, p. 220; Arch. Mus. hist, nat., 1912, ser. 5, 4, p. 

 117, fig. 48-52. 



Locality. — State of Rio de Janeiro : Campo Itatiaya (Mus. Paul, 

 coll.). 



SCHENDYLURUS BAKERI, Sp. UOV. 



Very pale; more densely pigmented anteriorly, where the color 

 is pale lemon-yellow. Head and the prosternum with prehensors 

 chestnut or with slight tendency to ferruginous. Antennae similar 

 to head but lighter. 



Body moderate; conspicuously narrowed from a little back of the 

 middle caudad, but only moderately attenuated cephalad. Hairs 

 of body and legs sparse, those of the legs chiefly toward the distal 



