308 HETEROMERA. 
irregular towards the sides, and shallowly, rather closely, and very distinctly punctured ; beneath more 
shining, blackish-bronze, shallowly, sparingly, and finely punctured, the ventral segments 1-3 also longi- 
tudinally wrinkled, the flanks of the prothorax irregularly strigose and with some scattered punctures ; 
legs sparingly punctured ; prosternum subdeclivous, the apex produced into a short conical tubercle ; 
mesosternum rather deeply excavate. 
Length 143-15 millim.; breadth 6 millim. (?.) 
Hab. Mexico (coll. Oberthiir), Misantla (Hége). 
Two female examples. This insect is closely allied to 7. wrifera; it will be known 
by its less shining surface, larger size, and relatively longer elytra, and also by the 
thorax being less narrowed in front and transversely subquadrate in shape, and more 
finely and shallowly punctured. The example kindly lent me by M. Réné Oberthir 
differs only from the other from Misantla in being of a lighter and more golden tint. 
36. Tarpela amabilis. (Tab. XIII. fig. 15,9.) 
Oblong ovate, rather convex, metallic bronzy-green, shining. Head short, coarsely, closely, and subequally 
punctured, the punctures more or less longitudinally confluent, the epistoma short and limited behind by 
a very shallow groove, the intraocular space (in one example) witha shallow fovea in the middle; 
antenne long, reaching to the middle of the elytra in the male, joints 9 and 10 long and subtriangular, 
piceous ; prothorax subquadrate, rather broader than long, widest at or a little before the middle, com- 
paratively strongly margined, the margins narrowly grooved within, the sides very slightly narrowed and 
sinuate behind the middle and slightly narrowing and feebly crenulate in front, the anterior angles a 
little prominent and narrowly rounded, the apex shallowly emarginate, the base very feebly bisinuate 
(almost straight), the basal fovee shallow, the hind angles subrectangular, the disc impressed in the 
middle just before the base, the surface closely and somewhat coarsely punctured (more finely so than 
the head), the punctures here and there longitudinally confluent on the disc and more scattered at the 
sides and base, a narrow ill-defined longitudinal space on the posterior third of the disc impunctate ; elytra 
considerably broader than the prothorax (especially in the female), a little flattened on the disc, rather 
long, subparallel in the male, very slightly widening from the base and widest a little beyond the middle 
in the female, strongly margined, the humeri rounded and very slightly produced in front, deeply striate, 
the striz somewhat finely, shallowly, and not very closely punctured (the punctures longitudinal in form) 
on the disc, more coarsely so outwardly, a row of coarse irregular impressions on each side within the 
lateral margins, the interstices flat or feebly convex, very minutely and distantly punctured, with traces of 
shallow transverse wrinkles (in one example) and each with a row of small distantly placed smooth 
conical elevations, the elevations almost obsolete from the basal half of the disc and most prominent at the 
apex and towards the sides, the suture, sides, and apical third more or less bronze in tint; beneath dark 
reddish-brown, shining, the metasternum very finely and very sparingly, the ventral segments much more 
distinctly, punctured, the latter also longitudinally wrinkled, the ventral segments 1-3 in the male closely — 
and finely punctured and pubescent along the middle, the flanks of the prothorax finely and closely 
strigose ; prosternum coarsely punctured, declivous, the apex not raised ; mesosternum narrow, declivous, 
very feebly excavate ; legs rather long, the tibize coarsely roughened and punctured, the femora very much 
smoother and only punctured at the apex. 
Length 53-87 millim.; breadth 24-4 millim. (¢ 9.) 
Hab. Guatemata, San Gerénimo (Champion). 
Two examples. This species will be readily known by the rows of small distantly- 
placed smooth conical elevations on each interstice at the apex and sides of the 
elytra. 
