CYLINDROCOPTURUS. 39 
and narrowed in front, and also a little narrowed behind; densely, rather coarsely punctate. Elytra 
slightly wider than the prothorax, somewhat rounded at the sides, transversely depressed at the base and 
uneven thence to near the apex, the apices raised and separately produced, angularly dilated at the sides ; 
finely punctate-striate, the interstices rather convex. Second ventral segment with two conical squami- 
gerous prominences at the apex. Legs short. 
Length 3}, breadth 14 millim. 
Hab. Mexico, Colima City (Hoge). 
One specimen, apparently a female, the ventral tubercles notwithstanding. The 
tuft of erect fulvous scales at the middle of the anterior margin of the prothorax, the 
bilobate apex of each elytron, and the cluster of erect fulvous scales at the apex of the 
fifth interstice, separate C. tetralobus from C. armatus. 
6. Cylindrocopturus armatus, sp. n. (Tab. III. figg. 9, 9 a.) 
Oblong-elliptic, flattened above, black; the upper surface with a dense clothing of coarse, overlapping, oval 
and rounded scales, the seriate elytral punctures each with a narrow piliform scale: the head brown, 
spotted with white, the prothorax brown, variegated with fulvous and white, and with a large, broad, 
subquadrate, white or fulvous patch on each side behind, the elytra brown, variegated with fulvous, black, 
and white, the white scales condensed into a transverse spot at the shoulder, a short streak behind the 
scutellum, a common transverse line on the interstices 2-4 at about one-third from the apex, a rather 
large lateral spot opposite the first ventral segment, and another at the apex, the fulvous scales condensed 
into an oblique streak on the disc below the base (extending outwards from the scutellar spot to the 
fifth stria), which is followed by a blackish triangular patch; the vestiture of the under surface and legs 
fulvous and white intermixed. Eyes well-separated; rostrum rugulose and subcarinate at the base. 
Prothorax transverse, narrowed and strongly constricted in front; densely punctate. Elytra slightly 
wider than the prothorax, somewhat rounded at the sides, the apices thickened and separately produced ; 
finely punctate-striate, the interstices feebly convex. Second ventral segment with two conical squami- 
gerous prominences at the apex. Legs short. 
Length 3-33, breadth 14-12 ‘millim. 
Hab. Mexico, Amula and Chilpancingo in Guerrero 4600-7000 feet (H. H. Smith). 
Two specimens, perhaps male and female, one having the rostrum a little smoother 
than the other. This insect agrees very nearly with the description of C. mammitllatus, 
Lec., from Southern California, differing from it in having a common, fulvous and 
white, “-shaped line on the elytra below the base and a transverse white line beyond 
the middle, as well as in its smaller size, &c. 
7. Cylindrocopturus imbricatus, sp.n. (Tab. III. fig. 10.) 
Oblong-elliptic, flattened above, black; the upper surface variegated with a dense clothing of coarse, over- 
lapping, oval and rounded, sordid-ochreous, whitish, and blackish-brown scales, the seriate elytral 
punctures each with an arrow scale: the prothorax with a very large, rounded, whitish patch on each 
side at the base, the elytra with a small, rhomboidal, blackish patch crossing the suture at one-third from 
the base, preceded by a short, oblique, ochreous fascia, the suture in part, a small spot at the shoulder, 
one on the fourth interstice towards the apex, another on the eighth nearer the base, and a transverse 
lateral patch opposite the first ventral segment, white, the apices ochreous ; the vestiture of the legs and 
under surface almost wholly whitish, the femora faintly fusco-annulate. Hyes narrowly separated in 
front. Rostrum rugulose and finely carinate at the base, almost smooth thence to the tip. Prothorax 
transverse, narrowed and constricted in front, and slightly narrowed behind; densely punctate. Elytra 
somewhat rounded at the sides, the apices raised and separately produced, the third interstice terminating 
