362 Mr. R. 8. Bagnall on new Thysanoptera. 
occupying about 0:26 the length of the head. Postocular 
setz slender and not long. Ocelli small, the posterior pair 
each contiguous to the inner margin of the eye on a line 
approximately through their middle. Antenne about 1°7 
times the length of the head, joints 7 to 8 broadly united, 
relative lengths of 2 to 8 approximately as follows :— 
22:32:30: 25:23:18:12. Mouth-cone short and broadly 
rounded. 
Pronotum strongly transverse, only about 0-4 the length 
of the head and nearly three times as long as the median 
length. Sete short (? vestigial) excepting those at pos- 
terior angles, which are about 0°6 the length of the pronotum. 
Wings broad, the fore-wing with 7 duplicated cilia. Fore- 
femora incrassate and fore-tibize with a minute tooth. 
Pterothorax heavy. Abdomen elongate, as broad as the 
pterothorax, segment 7 gradually, 8 roundly, and 9 more 
sharply narrowing to base of tube. Tube apparently some- 
what swollen near middle, though possibly evenly narrowed 
to apex, short and stout; about 0°7 the length of the head. 
Apical hairs slender, dark, about 0°7 the length of the tube. 
Abdominal bristles on 6 to 9 not exceptionally strong, light- 
coloured, those on 9 being about 0°8 the length of the tube. 
This species closely resembles C. brevicollis, differing chiefly 
in its larger size, comparatively larger and narrower head, 
the weaker abdominal chetotaxy, and the comparatively 
shorter tube. The postocular bristles are shorter and more 
slender in affints, and there are only 7 duplicated cilia in the 
fore-wing. 
Hab. Cryton, among cotton sent from Hettipold Exp., 
20. vi. 1913 (A. Rutherford). 
I have ventured to describe this from a single crushed 
example on account of the interest attached to the 
geographical distribution of Cwnurothrips and the allied 
genus Acallurothrips. 
There are two species of Acallurothrips, viz. proturus, 
Bagn., and macrurus, Bagn., each inhabiting a different 
island of the Seychelles group. Of Cenurothrips we have 
brevicollis, Bagn., and validus, Bagn., each inhabiting a 
different island of the Seychelles group, and minor, Bagn., 
from Rodrigues, another outlying Mascarene island. 
Gynaikothrips obscuripes, sp. a. 
9 .—Length c. 2:0 mm., breadth of mesothorax nearly 
05 mm. 
