HOPLORRHINUS.—BALANINUS. 279 
the seriate punctuation of the elytra scarcely distinguishable from that of the inter- 
stices, the bristly hairs much coarser, the legs not so long, the femoral tooth sharper. 
Group BALANININA, 
Balaninide, Leconte. Balaninini, Bedel. 
This group is separated by Leconte from the Curculionide (=Curculionine of this 
work), on account of the vertical movement of the mandibles, and it is placed by him 
as a separate family near the Brenthide, though he notes the affinity of Balaninus 
and Centrinus (of the Baridina). The Balaninina are poorly represented in Tropical 
America, and the Palearctic and Nearctic forms of Balaninus, s. str., are very closely 
allied, the various species attacking acorns, hazel-nuts, hickory-nuts, &c. | 
BALANINUS. 
Balaninus, Germar, Mag. Ent. iv. p. 291; Horn, Proc. Am. Phil. Soc. xiii. p. 457 (1878) ; Leconte, 
op. cit. xv. p. 822 (1876); Blanchard, Bull. Brooklyn Ent. Soc. vii. p. 106 (1884) ; Bedel, 
Faune Col. Bassin Seine, vi. p. 187 (1888). 
The Central-American species, and the few specimens I have seen from the South- 
American continent, all belong to Balaninus, s. str., the section Balanobius, Jekel, 
being confined to the Old World. They appear to be very rare in the southern part 
of our region, a single example only having been captured by myself during a long 
residence in the country. 
1. Balaninus obtusus. 
Balaninus obtusus, Blanch. Bull. Brooklyn Ent, Soc. vii. pp. 107, 108 (1884) °. 
Hab. Norra America, Canada, Eastern United States, from New Hampshire to 
Texas !.—Mexico, Ventanas in Durango, Chilpancingo, Jalapa, Oaxaca (Hoge), Tasco 
(ex coll. Flohr); Guaremana (Salié). 
The numerous specimens ( ¢ 2) received by us from Mexico agree very well with 
others I have seen from North America. Blanchard states that the species has been 
found on hazel-nuts. 
9. Balaninus nasicus. 
Balaninus nasicus, Say, Descr. N. Am. Cure. p. 16 (1831)*; Complete Writings, i. p. 279°; Gyll. 
in Schonh. Gen. Cure. iii. p. 877°; Horn, Proc. Am. Phil. Soc. 1878, p. 460*; Blanch. Bull. 
Brooklyn Ent. Soe. vii. p. 108°. 
Balaninus nasutus, Say, loc. cit. p. 16°. 
Balaninus rostratus, Gyll. loc. cit. p. 374°. 
Balaninus sparsus, Gyll. loc. cit. p. 379°. 
Hab. Norta America !~8, Eastern and Middle States °\—Mexico, Puebla (Sad/é). 
