NAUTES. 287 
the middle in front; prosternum broad, roughly punctured and grooved, horizontal, broadly produced ; 
mesosternum horizontal, V-shaped, very deeply concave, the raised sides quite vertical in front. Body 
apterous. 
Length 6-9} millim.; breadth 33-43 millim. (¢ 2.) 
Hab. Mexico, Cordova (Sallé), Jalapa (Hége). 
Two examples, apparently male and female. This species has a different facies from 
any other here recorded; it resembles WV. fervidus in its brilliant bronzy colour, but it 
will be at once known from that insect by its less parallel form; the thorax much 
wider anteriorly, more convex, and more narrowly margined; the elytra narrowed 
towards the base, constricted behind, and with more prominent humeri; the very much 
smaller scutellum; absence of wings, &c. 
16. Nautes nodulosus. (Tab. XII. fig. 18, 2 .) 
Broad ovate, short, very convex, bright-bronze or greenish-bronze, the head and prothorax usually golden- 
cupreous in tint. Head very shallowly transversely impressed in front, rather coarsely and not very 
closely punctured, the vertex much smoother; antenne long, fully reaching to the middle of the elytra 
in the male, widening a little outwardly, joints 9 and 10 long and subtriangular, the apical joint as 
long as the tenth, ferruginous or fusco-ferruginous ; prothorax broad, strongly transverse, strongly mar- 
gined, the sides gradually converging from the base, and rounded and more rapidly narrowing from the 
middle to the apex, the anterior angles wide, prominent, and broadly rounded, the apex deeply arcuate 
emarginate, the hind angles prominent, the base very strongly bisinuate and scarcely perceptibly mar- 
gined, the basal fover very shallowly impressed, the surface more sparingly and rather more coarsely 
punctured than the head; scutellum small, triangular, transverse ; elytra a little wider than the prothorax 
at the base, short, transversely gibbous, rounded at the sides, a little constricted before the apex, the 
apex slightly produced, the disc somewhat flattened behind, the humeri slightly prominent, deeply striate, 
the stris finely and rather distantly punctured, the interstices impunctate, feebly convex (nearly flat on 
the basal half of the disc), and each at the sides and on the posterior half with a row of distantly placed 
smooth conical elevations; legs rather slender, smooth, dark bronzy-cupreous, the tarsi long; anterior 
tarsi with the three basal joints slightly dilated, and the hind tibie a little sinuous, in the male; beneath 
very dark bronze, shining, the ventral surface almost smooth; metasternum short, with exceedingly 
coarse scattered impressions, the side-pieces smooth ; intercoxal process broad, margined in front, and with 
some scattered coarse impressions within; flanks of the prothorax smooth; epipleure smooth, abruptly 
narrowed and sinuous at the last ventral suture; prosternum roughly punctured, horizontal, broadly 
produced; mesosternum horizontal, very deeply excavate, V-shaped, the raised sides vertical in front. 
Body apterous. 
Length 6-83 millim.; breadth 33-5 millim. (¢ 92.) 
Hab. Guatemata, Purula, Sinanja, Sabo, Senahu, and San Juan in Vera Paz 
(Champion). 
Many examples. This insect will be readily identified by the rows of smooth conical 
elevations on the sides and posterior half of the elytra and other characters given 
above; it is allied to W. nitidissimus, N. maqnificus, &c., and like those species appears 
to be confined to the forest-region of the Atlantic slope. 
17. Nautes enoplopoides. (Tab. XII. fig. 19, ¢ .) 
Bronze-black, rotundate-ovate, short, very convex, rather dull. Head short, broad, at most very feebly trans- 
versely impressed in front, rather coarsely but not very closely punctured, the vertex almost smooth ; 
