ol4 RHYNCHOPHORA. 
4. Nicentrus testaceipes, sp.n. (Tab. XVI. figg. 26, 26a, 2.) 
Oblong, flattened above, black or piceous, the antenne, the rostrum wholly or in great part, and the legs 
rufo-testaceous; thickly and uniformly clothed with small, narrow, flavo-cinereous scales, which are 
arranged in three close rows down each elytral interstice, the vestiture of the under surface a little coarser 
and whiter. Head minutely punctate; rostrum stout, strongly arcuate, not longer than the head and 
prothorax, punctured and squamose to near the tip in the ¢, almost smooth in the 9, the antenne 
inserted at the middle in the ¢, and at about the apical third in the ¢, the antennal club ovate. 
Prothorax transverse, rounded at the sides anteriorly, narrowed and feebly constricted in front; densely, 
finely punctate, with a faint, abbreviated, smooth, median line. Elytra oblong, a little wider than the 
prothorax ; finely punctate-striate, the interstices flat and densely punctulate. Beneath densely, finely 
punctate; ventral segments 1 and 5 slightly depressed down the middle in the g. Prosternum unim- 
pressed behind the deep transverse subapical groove. Anterior coxe somewhat distant. Anterior tibiz 
. with a long stout uncus at the tip in the ¢, finely unguiculate in the 2. 
Length 24-33, breadth 1-14 millim. (¢ Q.) 
Hab. Mexico (Zruqui, in Mus. Brit.), Laguna in Coahuila (Herrera, in U.S. Nat. | 
Mus.: 3 2), Mexico city (Barrett, in U.S. Nat. Mus.), Guanajuato, Toxpam (Sallé), 
Jalapa, Oaxaca (Hége); GuatemaLa, Duefias (Champion: ¢ ). 
Twelve females and three males, the one from Duefias in bad condition. An oblong 
flattened form, with close uniform vestiture, and rufo-testaceous antenne, rostrum, and 
legs. The mandibles are pointed and dehiscent at the tip, and angulate at the sides 
beneath. The Coahuila examples are labelled as having been found on “corn and 
pepper.” 
5. Nicentrus candidulus, sp. n. (Tab. XVI. figg. 27, 274, ¢.) 
Elongate, narrow, black; above and beneath—a broad space down the disc of the prothorax and a common 
oblong scutellar patch on the elytra excepted—thickly clothed with white scales, the scales on the elytra 
oval in shape and arranged in about two rows along each interstice. Head closely punctate; rostrum 
stout, curved, shorter than the prothorax, rugulosely punctate and subcarinate, the antennz inserted 
towards the apex, the antennal club ovate. Prothorax slightly broader than long, constricted in front, 
somewhat rounded at the sides; densely, finely punctate, except along a smooth, narrow, median space. 
Scutellum rounded, rather large. Elytra oblong, very gradually narrowing from the base; finely punctate- 
_ striate, the interstices rugulosely punctate. Beneath densely punctate. Prosternum deeply sulcate. 
Anterior coxee narrowly separated. First ventral segment hollowed down the middle. Legs rather long ; 
tibiee strongly unguiculate. 
‘Length 3, breadth 1,4, millim. (¢.) 
Hab. Guatemata, Chiacam in Vera Paz (Champion). 
One male. ‘The less transverse prothorax and the uniformly distributed white vesti- 
ture of the elytra separate the present species from the nearly-allied N. decemnotatus. 
6. Nicentrus decemnotatus, sp.n. (Tab. XVI. figg. 28, 28a, 9.) 
Elongate, narrow, shining, black; the prothorax with a broad marginal stripe (extending down the pleura 
anteriorly) and a small spot in the middle at the base, the scutellum, and the elytra each with three 
sharply-defined spots—one on the disc at the base, one, very large and rounded, at. about the middle 
and one, small, at the apex,—densely clothed with broad, pure white, imbricate scales; the rest of the 
elytral vestiture black, that of the under surface (a bare space along the propleura excepted) and legs 
white, the disc of the prothorax almest bare. Head closely, finely punctate, squamose between the evens 
rostrum moderately stout, arcuate, a little longer than the prothorax, closely punctate, becoming smoother 
