280 Mr. R. 8. Bagnall on Thysanoptera 
Loc. Srycurties. Mahé: 1 2? from country above Port 
Glaud, about 900-1000 ft., 5. xi. 1908. 
Family Idolothripide. 
Genus Dicatornrrrs, Buffa. 
19. Dicaiothrips seychellensis, sp. n. 
? .—Length 3:4 to 3°8 mm. 
Dark black-brown to black, third autennal joint yellowish- 
brown, darker at apex. 
Head 2°6 times as long as broad ; eyes occupying a little 
more than 0:2 and produced part about 0°12 the total length. 
Cheeks narrowed behind eyes and thence swollen before 
base, genal spines knobbed, sparse, colourless ; postocular 
bristles longer than the eye, light-coloured ; anteocular pair 
also long, stouter than the postocular pair and similarly 
lightly coloured. Eyes bulging, finely facetted; ocelli 
situated as in D. levicollis, Bagn., and D. foveicollis, Bagn. 
Antenne about 1°5 times as long as the. head; joints 8 to 
5 mildly claviform ; 7 and 8 practically subequal in length ; 
relative lengths of 8 to 8 approximately as follows :— 
07 51:46:34 : 24:22, as compared to 72:66 :57 : 36: 24: 
21 in D. falcatus, Karny. Maxillary palpi with the second 
segment approximately four times the length of the first, 
Pronotum medianly 0:3 the length of head and twice 
as broad posteriorly as long. Setze light-coloured ; antero- 
marginal pairs short ; mid-lateral and postero-marginal pairs 
long, the outer postero-marginal sete about 0°6 of the 
length of the pronotum. Legs normal, fore-tarsus with a 
very short broad-seated blunt tooth. Pterothorax as broad 
as long, a little broader than the width across the fore-cox. 
Fore-wings about fourteen times as“long as broad across 
middle, clear with cilia dusky and closely set ; 30 duplicated 
cilia (in six counts—29 once, 30 four times, and 32 once). 
Abdomen narrowing gently from the fourth segment to 
the base of the tube. Tube 0°8 the length of the head, sides 
gently narrowed, distally about twice as broad at base as at 
apex. Terminal hairs weak, about 0°6 the length of the tube. 
Abdominal bristles fairly long, yellowish, blunt or faintly 
Knobbed, excepting those on segment 9, which are pointed, 
darker, and very long, slightly longer than the tube. 
d .—Smaller and more slender, with the tube only 0:7 the 
length of the head. Fore-femur incrassate with a prominent 
“sickle” bristle ; setee on outer margin moderately short 
