42 HETEROMERA. 
sutural row small and crowded and distinct only towards the base, a row much larger of threo or four, a 
row similar, and a marginal row small of about six pretty regular, the spots in the second and third rows 
irregularly arranged, a few scattered small black spots between the larger ones, apex bituberculate, 
Beneath dull black, not shining, hind margin of the ventral segments indistinctly marked with white on 
each side and the surface with a few fino punctures equally distributed, ventral tubercle feebly bisinuate 
in front. 
Length 17-18 millim. 
Hab. Mexico (coll. F. Bates). 
Two examples. Allied to Z. venosus and levicollis, but shorter and more convex, 
the arrangement of the tubercles of the elytra is rather different from any of the allied 
species, the sutural row is distinct only in the basal half, the two rows of large 
tubercles approach the suture behind, and the inner one almost takes the place of the 
sutural row; the ventral tubercle (though scarcely to be depended on as a character) is 
not trilobed in front as in the allied species. 
8. Zopherus angulicollis. (Tab. II. fig. 6.) 
Black, subopaque. Head very sparingly punctured ; thorax with fine widely scattered punctures, moderately 
convex, rather depressed, with an indistinct central channel, sides trisinuate and widened out a little 
before the middle into a distinct blunt tooth, midway between which and the base crenulate, narrowed 
behind, base much narrower than the apex and subtruncate ; elytra oval, convex, much narrowed at base, 
shoulders rather prominent, base slightly emarginate, with scattercd irregular small conical shining 
tubercles more distinct at the sides and apex than at the base and an indistinct row of flattened tubercles 
along the suture, the space between the tubercles dull and opaque, apex bituberculate and with the tubercles 
very large and flattened. Beneath dull black, ventral segments with scattered fine punctures, the last 
with a prominent transverse callosity the anterior margin of which slightly produced in the centre; 
mentum with a deep transverse impression. 
Length 17 millim. 
Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn). 
One example only. Allied to Z. guttwlatus, Horn. 
Sect. 2. Elytra 4-tuberculate at the apex. 
9. Zopherus nodulosus. 
Zopherus nodulosus, Sol. Ann. Soc. Ent. Fr. (1841) p. 43°. 
Zopherus variolosus, Sturm, Cat. 1843, p. 349, t. 5. f.2; Hald. Stansb. Expl. p. 376 (1852). 
Hab. Mexico’, Jalapa, Orizaba (Sal/é), Juquila, Jalapa (Hoge), Oaxaca (coll. F. Bates). 
Var. sallei. 
Zopherus sallei, Deyr. in litt. 
Proportionately a little shorter and more convex than Z. nodulosus; the elytra more rounded at the sides, the 
clevations more numerous and crowded, and towards the suture only separated by thin white lines. 
Length 14-27 millim. 
Hab, Mexico (coll. F. Bates), Orizaba, Capulalpam, Oaxaca (Sailé). 
This is the commonest Zopherus in Mexico, and peculiar to that country; it has 
