49 



The basal joint of the inner antennae presents distally a prominence of which the outer 

 angles are obtuse, vvhile it ends in the middle in a rather obtuse tooth. 



Looked at from above the basal joint of the outer antennae proves to be armed with 

 four strong acute spines, the most prominent in the middle of the anterior border, one more 

 internally, the 3 rd at the outer angle, vvhile the 4 th occurs at a lower level also at the outer 

 angle; in front of the 4 th spine the joint presents a rounded lobe, projecting forward. The 

 4 th joint or proximal outer squame is about as long as broad, but the larger triangular part 

 is V. longer than broad. The outer margin presents a small incision a little in front of the 

 middle and is armed along its whole length with 22 or 23 small, acute, subequal teeth, ten 

 before the incision, the rest behind it; one observes on the inner margin of the triangular 

 part an acute tooth a little behind the middle and between this tooth and the tip eight somewhat 

 smaller teeth; the inner border of the inner part of the joint ends distally in a tooth, which 

 is somewhat larger than the teeth of the outer part. The inner margin of the 5 ,h joint ends 

 in an acute, the outer in a subacute tooth and close to each the anterior border bears a 

 somewhat larger tooth. The distal squame has four lobes on the anterior and two on the 

 inner border; the free margin of these lobes is armed with small acute teeth or spines 

 and the lobes gradually decrease in width from the outer one to those of the inner border, 

 of which the anterior is larger than the posterior one, the smallest of all, but the anterior is 

 much smaller than the contiguous fourth lobe of the anterior border. On the upper surface 

 of all the joints short setae are implanted. 



First abdominal tergum rounded, 2 nd , 3 rd , 4" 1 and 5 th sharply carinated in the middle 

 line, the carinae are prominent, especially that of the 3 rd , which is the highest and 

 most prominent of all; on each side of the carina the terga show the tracé of an oblique 

 groove that runs towards the postero-lateral angle. The terga are for the rest nearly smooth, 

 presenting only a few microscopic granules, tipped with short setae, especially near their posterior 

 margin. The posterior margin of the 6 th tergum has a small subacute tooth in the middle, a 

 somewhat larger acute tooth at the outer angles and a smaller one between the median tooth 

 and the latter. Pleura smooth, denticulate along- the margins. Anterior segment of thoracic 

 sternuvn with a shallow notch in the middle. 



Thoracic legs fringed along the margins of their joints with short, more or less spini- 

 form setae. Those of the 2 nd and y d pair are rather not much compressed. 



Body pubescent, the short setae, however, rather sparse. 



SI1SOGA-EXPEDITIE XXXIX a*. 



