156 RHYNCHOPHORA. 
Prothorax and elytra with a sharply-defined continuous or interrupted white 
(or pale ochreous) vitta on each side, which sometimes reaches the apex, 
the elytra (except in A. belit) without black markings on the disc . . . Species 2-9. 
Prothorax obsoletely lineate on each side ; elytra with a complete or interrupted 
pale ochreous fascia . . . oe . . Species 10, 11. 
Prothorax obsoletely lineate on each side elytra each with three small pale 
ochreous spots . . - -« + + . oo oe . os 6 « « Species 12. 
Prothorax sharply vittate on each side ; elytra each with a broad, sinuous, 
interrupted ochreous stripe, which on the apical half is limited on each side 
by a black patch . . . . . - . . . . . Species 13. 
Prothorax broadly vittate on each side ; elytra cach with two black marks, the 
rest of their vestiture close and uniform. . . . . . . + + + + «+ Species 14. 
Prothorax usually narrowly vittate or lineate on each side ; elytra each with 
one or two black (or dark brown) velvety patches on the disc. 
The dark markings not confluent at the suture, often followed or preceded 
by a white (or ochreous) spot or streak, or edged with white (or 
ochreous) scales. . . . Species 15-26. 
The single dark patch on each elytron confluent with the opposite o one at the 
suture. . 1 ee Coe ee ee ee we ee.) Species 27. 
The dark markings on the elytra reduced to a common, short, transverse 
fascia. oe ee ee ee ee ee ee we ee ee) Species 28. 
Prothorax narrowly vittate on each side ; elytra each with a minute spot on 
the fifth interstice and an irregular apical patch ochreous. . . . . . Species 29. 
Prothorax broadly vittate on each side; elytra with an irregular ochreous 
apical patch, the rest of their vestiture black . . . . . 1 | . Species 30. 
Prothorax with the flanks and the elytra each with an apical spot and an 
oblique patch beneath the shoulder, whitish . . . . . . . . « . Species 31. 
Prothorax and elytra immaculate ; the vestiture uniform above and beneath . Species 32. 
Prothorax transversely convex; outer dorsal interstices of the elytra narrowly 
costate anteriorly: prothorax and elytra fasciate . . . . . . . . . Species 33. 
1. Ambates cretifer. (Tab. IX. figg. 8, 3; 9, 2, var.) 
Ambates cretifer, Pasc. Ann. & Mag. Nat. Hist. (5) vi. p. 177°. 
Ambates octonotaius, Jekel, in litt. *. 
Hab. Nicaragua, Chontales! (Belt); Costa Rica (Pittier, in Mus. Brit.; Van 
Patten), San Carlos (ea coll. Schild-Burgdorf ), Cariblanco, Sarapiqui (Lankester), 
Savanillas de Pirris (Underwood). 
Var. The white lateral patches on the prothorax not extending over the whole of the flanks, and separated 
from the patch on the front of the prosternum ; the apical spots on the elytra, and those on the second 
ventral segment also, wanting, the second elytral spot oblique. 
Hab. Costa Rica, Turrialba (ex coll. Schild-Burgdorf ). 
Easily recognized by the comparatively smooth, shining surface and the large patches 
of chalky-white or ochreous scales above and beneath—one along each side of the 
