﻿1NJUKIOUS TO SUGAli-CANES IN BARBADOS. 327 



Q . — Body very long and narrow (fig. 2) ; when viewed from above, six seg- 

 ments are visible, but the last one is small. There is only one pair of very long 

 hairs on the body and it is situated on the upper surface of the first segment 

 (cephalothorax). Two pairs of hairs, of moderate length, are present on the 

 second segment, those of the inner pair being stouter than those of the outer. 

 The few hairs which occur on the remaining segments of the bodv are short and 



Fig. 2. Tarsonemus spinipes, Hirst, 

 9 , ventral view. 



fine. Legs : segments of first leg four in number, not including the coxa ; 

 second leg apparently with five segments, not including the coxa. Posterior legs 

 very like those of T. spirifex ; tarsus of third leg somewhat bent. Penultimate 

 segment of fourth leg long and furnished with a spiniform seta of moderate 

 length near the apical end ; the last segment of this leg, as usual, has two setae 

 at the end, the outer one being fairly long and the inner one very long and fine. 



Length of female '35 mm. 



Larva : as is the case in T. spirifex, the shape of the body of the male larval 

 form is very different from that of the female larva, a strong constriction being 

 present at a short distance from the posterior end. The size of the larva of this 

 sex is much less than that of the female larva. 



This new species of Tarsonemus is very closely allied to T. spirifex, Marchal — 

 a European species which attacks oats. The male seems to differ from that of 

 T. spirifex chiefly in having spines on the third leg, and the female differs 

 principally in shape, its body being long and narrow. 



