O14 | HETEROMERA. 
and the thoracic horn narrower and more coarsely serrate laterally ; the fifth ventral 
segment is unimpressed. This species is allied to V. calcaratus, from which it differs 
in the much more strongly angulated elytral fascie, simple anterior tibiz in the male, 
and sharper sutural angles of the elytra in both sexes. The elytral markings are very 
sharply defined, the two fasciz both very strongly angulated and only separated by a 
W-shaped mark of the ground-colour. The unimpressed head, different elytral mark- 
ings, &c. distinguish WV. cristatus from WV. pueblensis. 
16. Notoxus pueblensis. (Tab. IX. figg. 24, 24a.) | 
Moderately elongate, subparallel, reddish-testaceous, somewhat thickly clothed with long coarse decumbent 
pubescence and long erect hairs; the sides of the prothorax broadly piceous ; the elytra testaceous, with 
a spot on either side of the suture below the base, an angulate fascia a little beyond the middle, a narrow 
indeterminate anteapical fascia (almost obsolete in one example), and the sides below the shoulders, 
piceous. Head rather sparsely pubescent, and with numerous long erect hairs in front, very finely and 
somewhat closely punctured, moderately shining, the front longitudinally excavate in the middle; 
prothorax broader than long, sparsely and finely punctured, rather shining—the horn moderately broad, 
feebly margined and subserrate at the sides, the crest abruptly elevated, more distinctly margined, and 
carinate down the middle, the margins crenulate; elytra subparallel, moderately long, shining, closely 
and finely punctured, the punctuation finer towards the apex, the usual oblique depression below the 
shoulders deep, the humeri distinct, the apices almost separately rounded in the male, conjointly so in the 
female; beneath fusco-testaceous ; legs and antenne testaceous; fifth ventral segment unimpressed in 
the male. 
Length 22? millim. (¢ Q.) 
Hab. Muxtco, Puebla (Sal/é). 
Two examples: in one of these, the supposed male, the apices of the elytra are 
less conjointly rounded than in the other; the horn is similarly shaped in both. 
NV. puedblensis has the elytra marked very much as in WV. calcaratus; from which it 
differs in the shorter and more scattered erect pubescence, the more shining surface, 
the longer thoracic horn, the less closely and more coarsely punctured elytra, and the 
simple anterior tibie in the male. The upper surface is more shining than in most of 
the allied forms, and the dark markings of the elytra show an eneous lustre in certain 
lights. 
MECYNOTARSUS. 
Mecynotarsus, La Ferté, Monogr. Anthic. p. 57 (1848); Lacordaire, Gen. Col. v. p. 595 (1859) ; 
Horn, Trans. Am. Ent. Soc. xi. p. 175 (1884). 
Twenty-one species of this very widely distributed genus have been described: of 
this number three only are from the New World, two from the South-eastern States of 
North America and one from California. "We now have to record one from the Pacific 
coast of Guatemala. Mecynotarsus will probably be found eventually on the Atlantic 
and Pacific shores of Mexico; but we have not, as yet, received a single specimen from 
any part of Mexico. These insects are chiefly found in sandy places on the coast or at 
the mouths of rivers. 
