PTOUS.—CRYPTORRHYNCHUS. 633. 
1. Ptous otidocephalinus, sp.n. (Tab. XXXI. figg. 7, 7a.) 
Black, shining, the elytra with a dense line of small white scales extending down the sixth interstice, which 
is continued forwards on the base of the prothorax, and is connected posteriorly with a narrow, trans- 
verse, subapical fascia and a short streak running down the suture thence to the tip; the base of the 
rostrum, the narrow intraocular space, the under surface, and legs sparsely clothed with minute, narrow, 
white scales, and the sternal side-pieces with a denser stripe of coarser scales. Head closely, finely 
punctate ; rostrum finely, rugulosely punctate at the base, almost smooth from the middle to the tip. 
Prothorax gradually narrowing from near the base; sparsely, finely punctate, except along a narrow 
smooth space down the middle. Elytra slightly depressed along the suture towards the base, finely 
seriate-punctate, the interstices almost smooth, 3 and 5 a little raised, the humeri rather prominent. 
Beneath very sparsely, finely punctate, the ventral segments 2—4 almost smooth. Femoral tooth narrow, acute. 
Length 43, breadth 14 millim. 
Hab. Nicaragua, Grenada (Sallé). 
One specimen. 
CRY PTORRHYNCHUS. 
Cryptorhynchus, Uliger, Mag. vi. p. 380 (1807); Schénherr, Gen. Cure. iv. p. 47 (part.) ; 
Lacordaire, Gen. Col. vii. p. 121 (part.). 
Cryptorrhynchus, Gemminger and Harold, Cat. Col. viii. p. 2568. 
The very numerous Central-American species (with a 7-jointed funiculus and visible 
scutellum *) still to be dealt with, belonging to Division II. of the Cryptorrhynchides 
vrais,’ are for the present placed under Cryptorrhynchus, though buat few of them can 
be regarded as absolutely congeneric with the European type, C. lapathi (Linn.). The 
large number of monotypic forms, and the inextricable confusion prevailing as to the 
actual limits of Cryptorrhynchus (which at present includes a heterogeneous assemblage 
of species from all parts of the world), Cwlosternus, and Gasterocercus, render any 
other course impracticable till the Tropical-American Cryptorrhynchids are studied 
as-a whole. Doubtless many more new genera will be required f. 
Species of large size, convex, oblong-ovate form, thickly squamose, with the eyes covered in 
repose, the rostrum curved, the antennal club ovate, the alternate elytral interstices (at 
least) feebly costate, the mesosternum horseshoe-shaped, the ventral segments 2-4 equal 
in length, the femora unidentate. (Nos. 1-3.) 
These forms are allied to Cylindrocorynus, but they are separable from it by the ovate 
antennal club, the less thickened, unidentate femora, and the widely separated eyes. 
1. Cryptorrhynchus mistus, sp. n. (Tab. XXXI. figg. 8, 8a.) 
Oblong-ovate, robust, black, the antennz fusco-ferruginous ; thickly clothed with coarse, intermixed, fulvous 
. 
* In C. subcylindricus the scutellum is not visible. 
+ The following S.-American or Antillean genera are not represented within our limits :—Oploscelis, 
Epipedorrhinus, Cnemargus, and Catapycnus, Schénh., Discophorus, Cylindrothecus, and Elytrocoptus, Chevr., 
Molicorynes, Waterh., Barisses and Semio, Pasc., and Paleopus, Homeostethus, Heterobothrus, Anomemerus, 
Oryptometopus, and Merocnemus, Faust. 
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, January 1906. 4 MM 
