284 HETEROMERA. 
b. Species apterous; the ventral surface in the male sculptured as in the female. 
10. Nautes magnificus. 
Broad ovate, short, strongly convex, metallic green, the head in the middle, the prothorax transversely in 
great part, and the elytra longitudinally or obliquely, much suffused with fiery cupreous, very shining. 
Head somewhat coarsely but not very closely punctured, scarcely visibly impressed in front, the epistoma 
broadly but not deeply emarginate; antennz rather long, widening a little outwardly, about reaching to 
the middle of the elytra in the male, joints 8-10 subtriangular and rather long, the apical joint about as 
long as the tenth, bronze-black, the basal joint paler; prothorax short, nearly twice as broad as long, 
strongly margined (the margins reflexed and thick), the sides converging from the base and rounded and 
more rapidly narrowing from the middle to the apex, the anterior angles broadly rounded and rather 
prominent, the apex arcuate emarginate, the hind angles prominent, the base very strongly bisinuate and 
almost immarginate, the basal fovez obsolete, the surface punctured like the head, though rather more 
strongly and sparingly so; scutellum triangular, transverse, comparatively small; elytra short, broad, very 
convex, almost gibbous, strongly margined, the width of the prothorax at the base, rounded at the sides, 
widest in the middle, the humeri rounded and not prominent, deeply striate, the stri more or less finely 
punctured, the scutellar stria obsolete, the interstices feebly convex on the disc and strongly so at the 
sides and apex, smooth; legs stout, comparatively smooth, the anterior tarsi with the three basal joints 
strongly dilated in the male, bronze-black, the tibie and femora suffused with metallic green and 
cupreous; beneath very dark brownish-bronze, with metallic green and cupreous tints, shining, very 
sparingly though rather coarsely punctured, the ventral surface (the first segment excepted) much more 
finely punctured and also coarsely longitudinally wrinkled, the flanks of the prothorax with a few very 
widely scattered shallow punctures and wrinkles; prosternum coarsely punctured, broadly horizontally 
produced and received by the deeply excavate V-shaped mesosternum, the sides of the latter vertical in 
front though rounded off above. Body apterous. 
Length 7-10 millim.; breadth 44-6 millim. (¢ Q.) 
Had. Guaremata, Purula, Teleman, and San Juan in Vera Paz (Champion). 
Six examples. This exceedingly vividly-coloured insect will be known by its short, 
broad, almost gibbous shape, and other characters given above ; in general form it bears 
a strong superficial resemblance to members of the genus Chrysomela. 
I only met with WV. magnificus on the Atlantic slope and in or near the Polochic 
valley ; it occurred at elevations situated between 1000 and 4000 feet. 
11. Nautes chrysomeloides. (Tab. XII. fig. 14, ¢.) 
Closely resembling NV. magnificus and differing as follows :—broader and more convex; the head and prothorax 
much more finely punctured; the prothorax a little longer, wider, more convex (the reflexed margins 
in consequence not so distinctly visible from above), and more rounded at the sides; the rest as in 
NN. magnificus. 
Length 8-103 millim.; breadth 54-6? millim. (¢ 2.) 
Hab. British Honpuras, Belize (Blancaneaux). 
Four examples. Though closely allied to WV. magnificus I believe this insect repre- 
sents a distinct species. | 
12. Nautes versicolor. (Tab. XII. fig. 15, ¢ .) 
Broad ovate, strongly convex, bright metallic green, very much suffused with fiery cupreous, golden, and 
purplish tints, these tints on the prothorax taking the form of angulated transverse bands, and on the 
elytra of longitudinal or oblique stripes, very shining. Head broad, shallowly transversely impressed in 
front, rather sparingly and somewhat finely punctured, the epistoma truncate in front; palpi and antenne 
