102 RHYNCHOPHORA. 
b!. Prothorax with the larger punctures closely placed, the minute interstitial 
punctuation inconspicuous or scarcely visible. Species of small size. 
co", Elytra caudate... 1 ee ee eee ew ee Species 13. 
d", Elytra notched at the tip... 6 1 ee ew ee ee ee + Species 14. 
b. Wings absent or rudimentary. . 
c'. Body oblong-ovate, robust ; elytra transversely wrinkled . . . . . ~ Species 15. 
d'. Body subfusiform, elongate-obovate, or subcylindrical. 
e", Prothorax and elytra with a submarginal vittate groove. 
a, Alternate dorsal interstices of the elytra raised and widened, the striz 
geminate . . . 1 6 ee ee we ee we ew eee + «Species 16. 
6", Dorsal interstices of the elytra flat or feebly convex, the striz not 
geminate. 
a‘, Elytra caudate or more or less acuminate . . . - . . » « + Species 17-20. 
b*. Elytra separately rounded at the apex . . . . . . . « « « Species 21. 
f". Prothorax and elytra without a submarginal vittate groove. 
cl’, Elytra with a few scattered, depressed, pubescent spots, the interstices 
flat 2. ee ee ee ee ee ee ee ew wee) «Species 22. 
d", Elytra without depressed spots, sulcate, the interstices convex . . . Species 23. 
§1. Wings fully developed. 
1. Lixus dentipes, sp. n. (Tab. VII. figg. 6, 6a, 3.) 
Cylindrical, black, shining, cinereo-pubescent, the pubescence in fresh specimens mottled on the elytra and 
forming sinuous lines on the prothorax. Head and rostrum closely, minutely punctate, with coarser 
punctures intermixed, the head foveate between the eyes; rostrum( 3) stout, moderately curved, about 
as long as the prothorax, longitudinally sulcate between the points of insertion of the antenne, a little 
longer inthe @. Prothorax subconical, slightly rounded at the sides posteriorly, with a deep rounded 
depression in the middle at the base; the surface closely, minutely punctate, with coarse punctures 
intermixed. Elytra elongate, obtuse at the apex, compressed laterally at the base, the scutellar region 
depressed; seriate-punctate, the interstices flat and very finely rugulose. Anterior femora acutely 
dentate. First or first and second ventral segments sulcate down the middle in the g¢. Body winged. 
Length 9-183, breadth 2;5-53 millim. (d @.) 
Hab. Mexico, Orizaba (Sallé), Teapa (H. H. Smith), Tapachula (Hége), Temax in 
N. Yucatan (Gawmer); Brivish Honpuras, Rio Hondo, Belize (blancaneaux) ; 
(suaTEMALA, El] Tumbador, Coatepeque, Las Mercedes, San Isidro, Duefias, San Joaquin 
(Champion), Coban (Conradt) ; Costa Rica (Van Patten), Tuis (Biolley, in Mus. Brit.), 
Atenas (Mus. Dresden); Panama, Bugaba, Volcan de Chiriqui, David, Taboga I. 
(Champion). 
Apparently the commonest species of the genus in Central America, and readily 
identified by the acutely dentate anterior femora and the comparatively short curved 
rostrum, which is a little longer in the female than in the male. The larger punctures 
on the prothorax and elytra are sometimes quite fine. A pair from Duefias are more 
thickly pubescent than the rest, but this is probably due to their fresh condition, the 
longer hairs being easily abraded; and two of the smallest females, from Chiriqui 
(perhaps specifically distinct), have the rostrum much more slender than usual and the 
