166 | RHYNCHOPHORA. 
Six examples. A small species, with albo-bilineate prothorax and a_ black 
{-shaped mark on the disc of each elytron, the rounded lower portion of this mark 
enclosing a white spot (which extends across the third and fourth interstices), similar 
to that on the outer margin. 
24, Ambates circumductus, sp.n. (Tab. X. figg. 2, 2a, ?.) 
Subovate, opaque, piceous; the prothorax with a faint median line and a narrow vitta on each side, the latter 
extending forward on to the head and rostrum, and continued as a narrow curved stripe along the disc 
of each elytron to the suture at one-third from the tip (the two stripes here becoming coalescent, and 
often extending along the suture to the apex), ochreous or whitish, the elytra also each with a large, 
velvety, black or brownish-black, triangular patch in the posterior half of the space enclosed by the pale 
lines; the rest of the vestiture of the upper surface sparser, brownish intermixed with ochreous or 
cinereous, that of the under surface and legs rather coarse and close, white intermixed with ochreous. 
Rostrum strongly arcuate, very stout, rugosely punctate and carinate. Prothorax transverse, sub- 
conical, constricted in front ; densely, rugulosely punctate. Elytra subtriangular, finely punctate-striate, 
the interstices rugulosely punctate. Ventral segments 1 and 2 shallowly depressed down the middle in 
the ¢. 
Length 32-43, breadth 2-23 millim. (¢ 2.) 
Hab. Panama, David, Caldera, Tolé (Champion). 
Not rare in the savana-region of Chiriqui, whence we possess sixteen examples. It 
is the only Central-American species with the continuous submarginal ochreous line 
on the upper surface extending round to the suture at one-third from the tip and 
enclosing a large triangular velvety-black patch at the middle of each elytron. The 
vestiture of the under surface is coarse. The elytra are shorter than in A. solani. An 
undescribed allied form (A. dorsalis, Jekel, in litt.) occurs in Colombia. 
25. Ambates solani, sp.n. (Tab. X. figg. 3, 3a, 33; 4,4, var.) 
Moderately elongate, dull, nigro-piceous or piceous, the legs wholly or in part ferruginous; the prothorax 
with a faint median line and another on each side, extending on to the head and rostrum, ochreous or 
cinereous, the elytra each with a large, oblong, velvety, black or brownish-black, patch on the middle of 
the disc near the suture (occupying about the median third), sometimes edged posteriorly with cinereous 
scales; the rest of the vestiture of the upper surface in great part brownish, the seriate elytral punctures 
usually surrounded by a few whitish scales ; the under surface and legs with scattered, hair-like, whitish 
scales, the ante-coxal portion of the prosternum thickly clothed with ochreous or white scales. Rostrum 
strongly arcuate, exceedingly stout, laterally compressed, rugosely punctate and tricarinate, broadly 
sulcate beneath, Prothorax broader than long, subconical, feebly constricted in front; densely, 
rugulosely punctate. Elytra oblong-subtriangular, flattened on the disc, the humeri and subapical 
callosities rather prominent ; finely punctate-striate, the interstices rugulosely punctate, the space covered 
by the blackish scales smoother and shining. Ventral segments 1 and 2 flattened or slightly depressed 
down the middle in the ¢. 
Var. The prothorax conical ; the velvety-black patch on each elytron longer and excised on its outer edge. 
Length 44-6, breadth 2-22 millim. (¢ Q.) 
Hab, Muxico, Teapa (H. H. Smith); Guatema.a, San Gerénimo, San Juan, Tamahu, 
Teleman, Panzos, and Sinanja, all in Vera Paz (Champion); Nicaragua, Chontales 
(Janson) ; Costa Rica, San José, Arcangeles (Biolley); Panama, Bugaba, Volcan de 
Chiriqui, David (Champion). 
