274 Mr. R. 8S. Bagnall on Thysanoptera 
pronotal setz long, the outer pairs attaining to 0°65 the 
length of the pronotum, rather stout and faintly dilated at 
apex ; the mid-lateral pair also prominent and rather stout, 
about 0°4 the length of the pronotum. Legs normal, fore- 
femora incrassate, sparingly and minutely setose ; fore- 
tarsus unarmed; hind-femora stouter and longer than the 
median pair, with the upper margin gently curved. Ptero- 
thorax quadrate, sides practically straight, converging gently 
posteriorly ; as broad anteriorly as the breadth across 
fore-coxe. Wings normal, fore-wings about 11 times as 
long as the median breadth, furnished with from 13 to 17 
duplicated cilia. 
Abdomen somewhat heavy, elongate and scarcely broader 
than the pterothorax, roundly narrowing from segment 7 
to base of tube. Tube slightly longer than the head, 
rather sharply narrowed apically from the distal third or 
thereabouts ; more than twice as broad at base as at tips. 
Apical bristles 0°8 the length of the tube, slender, dusky 
basally. Abdominal bristles long, moderately slender ; 
those on segment 9 almost as long as tube and very 
slender. 
All sete light, some colourless, others yellowish. 
$ .—Size smaller ; body more slender and comparatively 
shorter. Fore-femora only slightly more incrassate than in 
the ¢ ; fore-tarsus armed. 
Loc. Stycuyties. Mahé: 2 2, Cascade Estate, 800 ft. 
and over; 5 2,4 6, Long Island, 12—22. vii. 1908 ; 1 near 
Morne Blanc ; jungle between Trois Fréres and Morne 
Seychellois, about 1500-2000 feet, x1. 1908, 3 @. 
Silhouette : numerous examples from the Forest above 
Mare aux Cochons, the plateau and near by, September 
1908, almost entirely 9 ; 1 ? from high country and one 
from near Mont Pot-a-eau, at about 1500 feet, August 1908. 
Genus Cryprorurirs, Uzel. 
12. Cryptothrips seychellensis, sp. n. 
(Pl. VII. figs. 1 & 3.) 
2? —Length 2°6 to 29mm. 
Colour dark blackish-brown ; fore-tibiz yellowish-brown, 
with margins almost to apex darker; all tarsi and tips of 
intermediate and hind tibiz narrowly brownish-yellow. 
Antenne with segments 1, 6, 7, and 8 concolorous with 
head; 2 yellowish-brown to dingy yellow distally, 3 uniform 
