NODA. — 199 
Q. Elytra with the two submarginal interstices costate. 
Length 13-12 line. 
Moderately convex, of a metallic-green colour, slightly tinged with yellowish; the head distinctly but irregu- 
larly punctured ; the labrum and mandibles piceous; antenne half the length of the body, fulvous, the 
terminal six joints bluish-black; thorax nearly three times as broad as long, the sides moderately and 
evenly rounded, the anterior margin straight, the anterior angles not produced but acute, the surface 
finely punctured, the punctures a little more closely placed at the sides than on the disc, the inter- 
spaces here and there impressed with very minute punctures and finely granulate; elytra scarcely more 
strongly punctured than the thorax, the punctures arranged in regular but somewhat geminate rows 
(more distinctly geminate in the female), which near the apex form single strie ; legs entirely dark 
cupreous or geneous. 
Hab. Mexico, near the city (Flohr), Guanajuato, Orizaba (Sallé), Chilpancingo in 
Guerrero (Hoge). | 
Although not greatly differing from several other species of this genus, V. metallica 
may be known by its pale greenish colour, the fine punctuation of the thorax and 
elytra, and the semi-cupreous legs; the sexes are very similar in sculpture. NW. creti- 
fera, Lefévre, has the apices of the tibie fulvous, and the elytra in the female 
differently sculptured ; WV. subcylindrica, Jac., is of a more convex shape, and has the 
thorax and elytra much more closely punctured. The coste at the sides of the elytra 
in the female of WV. metallica are not very strongly raised but distinct. 
24. Noda plumbea. 
Dark leaden-blue; the head and thorax very finely and sparingly punctured; elytra convex, finely and regu- 
larly punctured. 
2. Slightly larger, the thorax more transversely shaped, the elytra similar to that of the male. 
Length 13-14 line. 
Of convex, somewhat posteriorly narrowed shape; the head broad, sparingly punctured, the epistome not 
separated from the face; antenne half the length of the body, proportionately slender, the lower five 
joints fulyous (the first stained with dark blue above), the others bluish-black ; thorax twice as broad as 
long in the male, narrowed in front, the sides moderately rounded, the surface very finely and remotely 
punctured, almost impunctate at the sides; scutellum scarcely broader than long, smooth; elytra convex, 
very little narrowed posteriorly, not depressed below the base, the punctures fine, rather widely separated, 
and placed at regular distances in rows, which are distinct to the apex; underside coloured as above ; 
the prosternum constricted between the coxe. 
Hab. Mexico, Teapa (H. H. Smith). 
The uniform and rather dull leaden-blue colour, the sparingly punctured thorax, and 
the regularly punctured elytra distinguish WV. plumbea from its allies. The female is 
very similar to the male, except that it has the thorax more transversely shaped. 
Several specimens. 
25. Noda parvula. 
Violaceous-black, the antenne and tibie fulvous; thorax scarcely perceptibly punctured ; elytra finely punc- 
tate-striate on the disc, more strongly so at the sides, the base with an obscure depression. 
Length 1 line. 
Head strongly but not very closely punctured ; the epistome wedge-shaped, the anterior margin deeply con- 
cave-emarginate; labrum and palpi fulvous; antenne half the length of the body, entirely fulvous; 
