482 SUPPLEMENT. 
legs sparsely squamose. Head densely punctate, feebly foveate between. the eyes; rostrum curved, 
moderately stout, about as long as the head and prothorax, shining, very sparsely, finely punctate, 
rugulosely punctured laterally at the base. Prothorax transverse, arcuately narrowing from the base, 
strongly constricted in front; densely, finely punctate. Elytra transversely depressed on the dise below 
the base, finely punctate-striate, the interstices densely, rugulosely punctate. Beneath densely punctate ; 
first ventral segment broadly and shallowly depressed down the middle, the fifth with a smooth shallow 
fovea near the apex. 
Length 7;1,-74, breadth 2,®,-3 millim. (d.) 
Hab. Panama, Tabernilla, Canal Zone (Busch, in U.S. Nat. Mus.). 
Two specimens. Near A. leucopleura and A. latevittatus, but differing from both 
of them in the uniformly squamose under surface, the broad sulphur-yellow sub- 
marginal stripe, the transversely depressed elytra, and the comparatively smooth 
rostrum and shallowly sulcate first ventral segment. 
Ambates sinuatus (p. 159). 
To the locality given, add:—Costa Rica, Tucurrique (U.S. Nat. Mus.). 
Ambates biguttatus (p. 164). | 
To the localities given, add:—GuatemaLa, Trece Aguas in Alta Vera Paz (Barber & 
Schwarz, in U.S. Nat. Mus.). 
Ambates solani (p. 166). 
To the localities given, add :—Guatemata, Trece Aguas (Barber & Schwarz, in U.S. 
Nat. Mus.) ; Costa Rica, San Carlos, Turrialba, Tucurrique (U.S. Nat. Mus.). 
Ambates scutiger (p. 167). 
To the Guatemalan locality given, add:—Trece Aguas (Barber & Schwarz, in US. 
Nat. Mus.: ¢ ). 
Described from a single female from the opposite side of the Polochic Valley. The 
male has the rostrum closely punctured and squamose to near the tip, the antenne 
inserted nearer the apex, and the first ventral segment slightly depressed down the 
middle. ‘The vestiture is precisely similar in colour in the two specimens. An allied 
form occurs in the Lesser Antilles *. 
* Ambates lateralis, sp. n. 
Elongate, opaque, piceous, the antenne (the club excepted) and tarsi ferruginous ; thickly clothed with 
intermixed fulvous and brown scales, and also with a few small scattered white spots along the elytral 
strie, and some larger ones on the sides of the body beneath and on the outer face of the posterior 
femora; the prothorax with the sides (leaving a large triangular dark space on the disc), flanks, and 
"under surface (a transverse patch opposite the eyes excepted) almost wholly white, and the elytra with 
an irregular, oblique or subtriangular, dark velvety patch on the inner part of the disc before the middle ; 
the vestiture of the head, and that of the rest of the under surface and legs, fulvous slightly intermixed 
with white, the tarsi with ochreous hairs. Head densely punctate, depressed and faintly sulcate between 
