442, PERCY SLADEN TRUST EXPEDITION 
CRYPTORRHYNCHUS. 
Cryptorhynchus Uliger, Mag., vi. p. 330 (1807). 
An immense number of heterogeneous forms from all parts of the world are at present 
referred to this genus. The two included in it in this paper are certainly not endemic, and 
it is therefore unnecessary to say much about them. 
59. Cryptorrhynchus mangifere. 
Curculio mangifere Fabr., Syst. Ent., p. 139 (1774). 
Cryptorhynchus mangifere Boh., in Schonh., Gen. Cure., iv. p. 91; Van Dine, Proc. 
Hawai. Ent. Soc., 1. pp. 79—82 (1907). 
Cryptorhynchus ineffectus Walk., Ann. Mag. Nat. Hist., (3) ii. (1859), p. 264. 
Loc. Chagos Islands. Madagascar. Mauritius. Réunion. Java. India. Ceylon. 
Africa; Zanzibar, Natal, &e. Hawaiian Islands. 
One specimen, labelled ‘‘ Chagos Islands, flew on board, 3. vu. 05.” A cosmopolitan 
insect, known as the “‘mango-weevil,” and doubtless often transported to distant places in 
the fruit. The type of C. mangifere was found in a mango-nut. Walker's C. ineffectus 
came from Ceylon. The insects in the British Museum representing C. humeralis, Gyll., 
and C. australis, Boisd., belong to the same species, but their identification is doubtful. 
Two allied forms were described by Fairmaire in 1897 from Madagascar, C. transversus 
and C. angustior. According to Emmerez (Revue Agricole, 30 Juillet, 1898), C. mangifere 
is a destructive insect in Mauritius. The habits of the insect in India have been described 
by Simmons in 1888, and by Cotes in 1889. 
60. Cryptorrhynchus erratus, n. sp. (PI. 24, figs. 33, 33 a, 9.) 
Oblong-ovate, convex, black, the antennze and the apices of the tarsi ferruginous , 
variegated with a dense clothing of intermixed broad, adpressed, and imbricate and 
erect, narrower, brown, whitish, and black scales—the whitish adpressed scales condensed 
into a subquadrate or transverse patch on the disc of the elytra before the middle 
(mainly formed by a streak on the fourth and fifth interstices) and various small scattered 
spots, and the black scales into some small spots on the prothorax and various short 
streaks on the elytral interstices 2, 3, and 5 (the streak at the base of 3 and 5 conspicuous, 
that on 2 sometimes wanting), the erect dark scales on the prothorax somewhat crowded 
at the apex and across the middle, the legs faintly fusco-annulate. Head densely, rugosely 
punctate above, transversely strigose beneath, the vertex with a short ridge (forming 
a continuation of the rostral carina); eyes large, coarsely facetted ; rostrum long, stout, 
strongly arcuate, reaching to between the middle coxz, carinate in its basal half, coarsely 
punctate to the tip in ¢, the apical half much smoother in 2; antennal club about as long 
as the four preceding joints united. Prothorax transverse, strongly rounded at the sides, 
narrow and constricted at the “apex, bisinuate at the base; very coarsely, confluently 
punctate. Scutellum transverse. Elytra slightly wider than the prothorax, moderately 
elongate, narrowing from a little below the base ; punctate-striate, the interstices densely 
punctate, 3 and 5 somewhat raised. Beneath densely, coarsely punctate; rostral canal 
