CHAMPION—COLEOPTERA ; CURCULIONIDA 443 
very deep, terminating in the greatly developed, U-shaped, horizontal mesosternal process ; 
ventral segments 2—4 subequal in length ; femora feebly bidentate, suleate along their 
entire length beneath ; tibize broad, somewhat curved. 
Length 51—8, breadth 24—3# mm. (f?). 
Loc. Aldabra: Takamaka, 1908 (Fryer). Port Natal (Plant, in Mus. Brit.). Guinea, 
River Niger (Mus. Brit.). 
Described from a pair from Guinea and a female from each of the other localities ; 
the one from Natal, in the Fry collection, found by Mr Plant, is taken as the type. This 
insect must have been introduced in some way into Aldabra, it being evidently a very 
widely distributed African form, possibly already described? C. erratus will doubtless 
have to be removed from Cryptorrhynchus when the African Cryptorrhynchids are properly 
studied. The W. African specimens are larger than the others and have some additional 
black spots on the elytra. The Aldabra example is figured. 

CRYPTORRHYNCHIDIUS, n. gen. 
Rostrum moderately stout, arcuate, in repose reaching as far as the middle of the 
intermediate coxee; rostral canal very deep, closed behind by the greatly developed, 
U-shaped mesosternal process, which is on the same plane as the anteriorly emarginate 
metasternum, the latter short and with broad episterna; antennz inserted near the 
middle of the rostrum, the club oblong; scutellum prominent, polished; elytra deeply 
sinuate at the base, the sides forming an almost continuous outline with those of the 
basally widened prothorax; ventral segment 2 nearly as long as 3 and 4 united, 3 and 4 
short, 1 elongate; intermediate and posterior coxee somewhat widely separated ; femora 
feebly dentate, sublinear, the anterior pair longer than the others ; third tarsal joint 
broadly bilobed; tarsal claws simple, divergent; body robust, very convex, laterally 
compressed, acuminate-ovate, densely squamose. 
Type, C. graniger. 
Amongst the vast number of Cryptorrhynchids known to me I have not come across 
any species with which C. graniger could be satisfactorily compared, and it must there- 
fore be placed under a separate generic name for the present. Cryptorrhynchus, type 
C. lapathi L., has the head transversely strigose beneath, the ventral segments 2—4 
subequal in length, the elytra much wider than the prothorax, &c. 
61. Cryptorrhynchidius graniger, n. sp. (Pl. 24, figs. 34, 34a, ?.) 
Sphadasmus granocostatus Kolbe* (nec Fairm.), Mitt. Zool. Mus. Berlin, v. p. 45 
(1910). 
Black, the extreme base of the antennz red; variegated with a dense clothing 
of rounded, imbricate, brown (or greyish) and white scales, the latter tending to form 
irregular fascize on the elytra, the scattered granules along each elytral interstice bare 
* T have examined one of the specimens determined by Kolbe as S. granocostatus Fairm., and find 
that it is not a Sphadasmus, but is identical with C. graniger. 
SECOND SERIES—ZOOLOGY, VOL. XVI. 57 
