272 Mr. R. S. Bagnall on Thysanoptera 
length of the prothorax. Pterothorax broad, about as broad 
as long. Fore-wings rather broad, about ten times as long as 
broad, with 8-12 duplicated cilia. Fore-femora incrassate. 
Abdomen elongate-ovate, gently rounded from segment 
7 to 9. Tube more normal in form than in either A. pro- 
turus or A. macrurus ; about 0°9 the length of the head, 
broadest at base, where it is about 0°55 as broad as long ; 
evenly narrowing, with straight sides, distally and but 
slightly constricted just before tip ; dorsal carina reaching 
to the distal half. Apical hairs slender, dark, about 0°6 the 
length of tube. Abdominal bristles strong, yellowish or 
colourless; those on 7 and 9 nearly as long as tube. 
3 .—With the tooth of the fore-tarsus slightly stouter than 
in the 9. 
Loc. Srycuettes. Mahé: 1 ¢ and 1 ?, Cascade Estate, 
800-1000 ft.; 2 2, top of Mount Sebert, nearly 2000 feet, 
i. 1909. 
10. Cenurothrips validus, sp. n. 
(Pl. VI. figs. 4, 5.) 
? .—Length c. 1°38 mm. 
Colour chestnut-brown ; fore-tibiz a shade lighter and 
tarsi yellowish-brown. Wings lightly fumate. 
Head approximately as broad as long, 1:3 to 1°4 times 
as long as the prothorax. Eyes moderately finely facetted, 
small, occupying about 0°25 times the dorsal length of the 
head ; postocular setee long, about 1°5 times the length of 
the eye. Ocelli much as in C. drevicollis ; interocellar sete 
prominent. Antenne .... Mouth-cone much as in 
C. brevicollis. 
Pronotum transverse, twice as broad as long; all set 
well-developed. I find it impossible to judge the lengths of 
the postero-marginal sete; the mid-lateral ones are about 
one-sixth the median length of the pronotum and the antero- 
marginal pair shorter again. Pterothorax stout, broader 
than long. Legs rather stout; fore-legs with the femora 
strongly incrassate and the tarsus armed with a stout tooth. 
Wings muchas in C. brevicollis ; fore-wings with eight dupli- 
cated cilia. 
Abdomen stout, broadly ovate, broadest at segments 3 to 
6, aud very broadly rounded to base of tube; tube as in 
brevicollis, but longer and comparatively less stout, as long 
as, or slightly longer than the head, about twice as long as 
broad at base, and slightly constricted at tip. Apical hairs 
