298 Mr. H. W. Bates on the Longicorn Coleoptera 
base on the inner side with a broad square enlargement. Pro- 
sternum narrow, simple; mesosternum rather broad, bitubercu- 
lated, and vertically inclined anteriorly. . 
Chalcolyne metallica, Pascoe. 
Onocephala(?) metallica, Pascoe, Trans. Ent. Soe. n. s. iv. (1858). 
C. oblonga, nitens, nigro-eenea, breviter fusco setosa; elytris viridi- 
eeneis, striato-punctatis ; thorace subcylindrico, elytris multo an- 
gustiore, antice leviter angustato, supra transverse rugoso, lateribus 
utrinque tuberculo acuto armatis. Long. 5 lin. 3? 
Found only at Ega, Upper Amazons, on the stem of a slender 
tree in the forest. The insect is very similar in form to Gryllica 
flavo-pustulata, Thoms., but differs not only in the spinose tho- 
rax and metallic colours, but in the basal joints of the antenne 
not being compressed. 
Genus EumMIMEsIs, nov. gen. 
Body oblong, above plane, clothed with short, stiff hairs. 
Elytra oblong, broadly rounded at the tip. Head with long, 
slightly retracted face; mouth somewhat projecting; palpi 
elongate, pointed; eyes ample, but distant on the vertex; an- 
tenniferous tubercles distinct, divergent. Antenne short ; basal 
joint oblong-quadrate, compressed ; second joint rather abruptly 
dilated from the middle; third joint curved and dilated at the 
apex ; fourth with the upper edge enlarged into a short foliaceous 
expansion ; remaining joints very short, simple. Thorax sub- 
cylindrical, thickly punctured, sides each armed with an acute 
spiniform tubercle. Legs moderately elongated, thighs clavate, 
middle tibize simple on their outer edge, tarsi short and uncom- 
pressed, claw-joint slender and short; claws divergent and 
strongly curved, furnished at the base on their inner side with a 
broad tooth. Prosternum narrow, simple ; mesosternum much 
broader, bituberculate, steeply inclined anteriorly. 
This genus, as will be seen by the above description, harmo- 
nizes with Chalcolyne in the majority of its characters. Mr. 
Alexander Fry, who has paid especial attention to the Saper- 
dite and their allies, having examined my specimens, is inclined 
to think that the insect on which I have founded the genus 
Chalcolyne is a male individual of a species of Humimesis. The 
great difference in the antennz, in the absence of positive evi- 
dence of identity, forbids, however, the fusion of the two forms 
into one genus. 
Kumimesis heilipordes, n. sp. 
E. speciebus Heilipi generis Curculionidarum simillima, oblonga, 
_ fusco-ferruginea, dense breviter setosa ; thorace utrinque vitta lata, 
