POSIDES.—EURYMETOPON. 7 
bisinuate, front margin broadly but feebly emarginate, hind angles rectangular, very coarsely and closely 
punctured at the sides, more sparingly and finely along the middle, the spaces between the punctures very 
finely and sparingly punctate; elytra long, convex, rounded at the sides, widest about the middle, scarcely 
wider than the thorax at the base, with regular rows of very coarse rounded impressions distinct to the 
apex, interstices flat with scattered very fine punctures. Beneath shining, with large, very coarse, rounded 
impressions, the ventral segments towards the apex sparingly and finely punctured. 
Length 10-11 millim. 
Hab. Mexico, Puebla (Sallé), Tehuacan (Hoge). 
Found in some numbers by Hoge. 
EURYMETOPON. 
Eurymetopon, Eschscholtz, Zool. Atl. iv. p. 8 (1831); Lac. Gen. Col. v. p. 66 (1859); Horn, Rev. 
Ten. N. A. p. 267 (1870); Lec. & Horn, Class. Col. N. A. p. 363 (1883). 
Cryptadius, Lec. Ann. Lye. New York, v. p. 140 (1851). 
Some half-dozen North-American species constitute this genus; we have now to record 
two from Mexico. The winged species of Emmenastus and Eurymetopon are stated to 
occur beneath bark of Prosopis or mesquit; those without wings under stones. 
1. Kurymetopon rufipes. 
Eurymetopon rufipes, Eschsch. Atlas, iv. p. 8, t. 18. f. 1 (1831)*; Mann. Bull. Mose. ii. p. 264; 
Horn, Rev. Ten. N. A. p. 267 (1870)’. 
Eurymetopon abnorme, Lec. Ann. Lyc. New York, v. p. 138°. 
Hab. NortH America, Colorado desert *, Arizona ?, California :—Muexico, Northern 
Sonora (Morrison). 
Apparently common in Sonora. 
2. Hurymetopon brevicolle. (Tab. I. fig. 7.) 
Oblong ovate, brownish black, slightly shining, winged. Head dull, the vertex sparingly and finely punctured; 
the epistoma broad, truncate in front, separated on each side from the lateral lobes by an oblique impres- 
sion, anterior margin reddish, a little more coarsely and closely punctured ; prothorax strongly transverse, 
rounded at the sides, but little narrowed behind, widest a little behind the middle, somewhat strongly 
narrowed in front, the angles sharp triangular, hind angles rectangular, base slightly bisinuate and almost 
straight, finely and rather closely punctured, with an indistinct central raised line; elytra wider than the 
thorax at the base, slightly rounded at the sides, three times as long as the thorax, with indistinct rows 
of fine punctures, the interstices flat, with scattered very fine punctures and some slight traces of trans- 
verse wrinkles. Legs and antenne red. 
Length 84 millim. 
Hab. Mexico, San Pedro in Coahuila (Dr. Palmer). 
One example. Allied to #. sodale, Horn, and the head formed as in that species, 
but larger, and the thorax broader behind, less rounded at the sides, less convex, and 
yery short in proportion to the length of the elytra. 
