400 PERCY SLADEN TRUST EXPEDITION 
The forms here dealt with may be distinguished thus : 
a. Anterior femora dentate. 
1 
av. Scutellum squamose. 
a. Eyes depressed, oval; surface-vestiture fine, hair-like, at most condensed 
into a few small spots on the elytra 
adspersus, C. O. Wat. [Amirantes, &c. ]. 
b°. Hyes moderately prominent, oval ; surface-vestiture coarser, the scales less 
elongate, oblong-oval on the elytra, and condensed into numerous 
patches on the latter... ... griseovestitus, Linell [Seychelles]. 
c. Eyes very prominent, rounded, coarsely facetted ; surface-vestiture much as 
in C. griseovestitus es che viridisparsus, Fairm. [ Aldabra}. 
b. Scutellum bare and shining. 
d’. Femora and tibiz rufescent ; the depressions of the upper surface, including 
the coarse seriate punctures on the elytra, thickly clothed with metallic 
golden-green, golden, or blue scales 
aurostriatus, Fairm. [Seychelles]. 
e". Femora and tibize black ; the depressions of the upper surface very sparsely 
squamose, the scales less metallic, at most clustered into a few scattered 
patches. 
a 
Elytra without submarginal line of white scales 
segregatus, n. sp. [Silhouette ]. 
b’. Elytra with a sharply-defined, interrupted, submarginal line of white 
scales... ie She segregatus, var. subcinctus n. | Praslin]. 
b. Anterior femora unarmed ; scutellum bare; surface-vestiture dense, except along 
the bare raised elytral interstices Sue sia muticus, n. sp. [Mahé]. 
5. Cratopus adspersus. (Pl. 22, fic. 5, 2.) 
Cratopus adspersus C. O. Waterhouse, Rep. Zool. Coll. “ Alert,” p. 576 (1884). 
Loc. Amirantes: Eagle Island (Mus. Brit.) ; Desroches, Poivre and D’Arros Islands, 
1905. Chagos Islands, 1905; Egmont, Salomon, and Peros Banhos Atolls. Coetivy, 
1905. Seychelles: Bird and Dennis Islands, 1908 (Fryer). Farquhar Atoll, 1905. 
Cargados Carajos: Establishment Island, 1905. Aldabra: 1907 (Thomasset), 1908 
(Fryer). Astove: 1907 (Thomasset). Cosmoledo: 1907 (Thomasset). Assumption : 
1909 (Dupont). 
A very long series of this insect has been obtained by Messrs Gardiner, Thomasset, 
Dupont, and Fryer in the coral-islands and atolls above quoted. None were obtained 
from the coasts of the mountainous granitic islands of the Seychelles group. The type 
was from Eagle Island, where it has also been found by Mr Gardiner. C. adspersus 
is distinguishable from the other very similar coast-forms by the oval, depressed eyes, the 
closer and finer granulation of the prothorax and elytra, and the more elongate and 
hair-like scales on the upper surface, this being particularly noticeable on the head 
and prothorax. The vestiture, too, is more uniformly distributed, at most condensed into 
