from the Seychelles Islands and Rodrigues. 281 
and stout; of the sparse dorsal sete one, backwardly directed 
as though to protect the trochanter, appears to be more 
than usually stout. Fore-tibize at distal angle within 
obtusely produced, and fore-tarsus with a long stout tooth. 
Abdominal segments 8 as long as 7 and a little more than 
one-half the length of the tube. Duplicated bristles of fore- 
wings 25 and 27 in the single example from Mahé and 27 
and 29 in the Silhouette specimen. 
Loc. Srycuetirs. Mahé: 2 2, country above Port Glaud, 
about 500-1000 ft., 5. xi. 1998; 2 9,14, Cascade Estate, 
800-1000 ft., i. 1909. Silhouette: 1 g and2 ?, taken from 
long grass in cultivated country near Mont Pot-a-eau, about 
1500 ft., Aug. 1908. 
This description is taken from Mahé examples. ‘The 
single g example from Silhouette has the postocular bristles 
set curiously far back, whilst the genal chetotaxy is com- 
paratively weaker. The fore-femur is more strongly in- 
crassate and apparently more generously spinose and setose. 
The smaller and weaker genal spines are also shown in both 
the Silhouette 2 ? and in one ? from Mahé, these latter 
examples also agreeing in the possession of a comparatively 
broad head, caused, I believe, by a difference of treatment, the 
microscopic mounts having been made at a much later date. 
Of the species of Dicaiothrips described from the Indo- 
Malayan and African regions, two are separated from all 
others by the fact that all the antennal joints excepting only 
the third are uniformly dark. They are D. denticollis, Bagn. 
(Malay Archipelago), of which Buffa’s schdttii (non Heeger) 
is probably synonymous, and D. falcatus, Karny. D. denti- 
collis is a very much larger insect than the one just described 
and any further comparison is unnecessary. D. falcatus is 
only slightly larger (3°8 to 4°6 mm. in length), and differs in 
the relative lengths of the antennal segments, most noticeably 
8 to 5, which are Jonger than in D. seychellensis, and in the 
shorter tube, which is but 0°6 the length of the head. The 
antenne are only one-third longer than the head in falcatus, 
whilst there are forty duplicated cilia in the fore-wings. 
20. Dicaiothrips rex *, sp. n. 
(Pl. VII. figs. 5, 6.) 
6 .—Length 5:0 mm. 
Colour brown, including all femora, tibie, and tarsi, 
* Described on the eve of November 11th, 1918, and dedicated to His 
Most Gracious Majesty King George V. 
