HETEROMERA. 551 
convex, and the striz very faintly punctured ; the thorax with less prominent anterior 
angles; the under surface more sparsely, more finely punctate, the flanks of the pro- 
thorax almost smooth. | 
Nautes striatipennis (p. 283). 
To the Mexican locality given, add :—Actopan (Flohr). 
12 (a). Nautes tricolor. 
¢. Oblong-ovate, moderately convex, very shining, golden-bronze, the head, prothorax, and elytra here and 
there suffused with cupreous and metallic green. Head thickly and rather coarsely punctured ; antennx 
very elongate, rufo-testaceous, slightly darker at the tip; prothorax nearly twice as broad as long, broadly 
and deeply emarginate at the apex, strongly bisinuate at the base, the sides sharply margined, rounded 
and converging in front, and sinuate behind, the base very feebly margined, the anterior angles sharp and 
prominent, the hind angles acute, the surface coarsely, thickly punctate; elytra a little wider than, and 
more than three times the length of, the prothorax, oval, deeply striate throughout, the striz becoming 
exceedingly deep towards the sides and apex and with scattered rather fine punctures, which slightly 
impinge on the interstices, and become coarser towards the sides, the interstices, except towards the suture 
anteriorly, very strongly convex and with minute, widely scattered punctures ; beneath very shining, 
eeneous, suffused with metallic green, coarsely, rather sparsely punctate, the punctures on the flanks of 
the prothorax very coarse and partly coalescent, the venter also longitudinally wrinkled ; prosternum 
coarsely punctured, horizontal, strongly produced, and received by the V-shaped mesosternum, the latter 
vertical in front ; legs rufo-testaceous, the femora wneous; anterior tarsi strongly dilated ; hind tibiz 
slightly sinuous within. 
Length 7 millim. 
Hab. Mexico, Chinautla (Flohr). 
One specimen. Allied to WN. versicolor, but more parallel, with the head and thorax 
much more coarsely punctured, the thorax less narrowed anteriorly, the elytral stric 
still more deeply impressed and more coarsely punctured, and the upper surface less 
suffused with cupreous. 
TARPELA (p. 288). 
2(4). Tarpela pulchra. (Tab. XXIII. fig. 12, ¢.) 
Oblong-ovate, very convex, more parallel in the male than in the female, the head and prothorax more or less 
suffused with cupreous, metallic green, and golden, the elytra alternately striped with the same brilliant 
metallic colours, the suture violaceous, the upper surface very shining and glabrous. Head coarsely, 
closely punctate, with the punctures on the vertex transverse, broadly transversely depressed in front, the 
eyes small and prominent; antennx pitchy-black, moderately long (d ), short (@), very slender at the 
base, joints 7 and 8 slightly thickened, elongate-triangular, 9-11 considerably widened—9 nearly as broad 
as long, triangular, much wider than 8, 10 shorter and more transverse, 11 bluntly rounded at the tip, 
a little longer than 10; prothorax transverse, with the disc strongly longitudinally convex, flatter 
towards the sides, the sides slightly sinuate behind the middle, parallel at the base, and rounded and 
converging in front, the apex broadly and very deeply emarginate, the base strongly bisinuate, finely 
margined, the hind angles sharply rectangular, the anterior angles strongly, subacutely produced, the 
entire surface rather thickly punctured, the punctures very deep, coarse, and oblong in shape, the mar- 
ginal carina very fine ; elytra short, gibbous, wider than the prothorax, a little rounded at the sides in 
the female, more parallel in the male, somewhat compressed before the apex, very deeply striate through- 
4 BB 2 
