NAUPACTUS. 233 
First ventral segment slightly hollowed down the middle in g¢. Anterior tibia with a row of scattered 
denticles, the intermediate pair also sometimes similarly denticulate in d, the anterior pair sharply, and 
the others feebly, unguiculate in that sex. 
Var. The vestiture of the upper surface dense and uniformly cinereous throughout ( ) (fig. 6). 
Length 104-14, breadth 32-6 millim. (¢ @.) 
Hab. Mexico, Acapulco (Hége, II. H. Smith), Salina Cruz, Tehuantepec (nad, m 
U.S. Nat. Mus.), Chiapas (Sallé), Gamboa in Oaxaca (Crawford, in Mus. Brit.). 
Ten examples, those found by Mr. F. Knab in very fresh condition, and with the 
prothorax and elytra beautifully lineate with a powdery sulphur-yellow exudation. 
The three uniformly cinereous females are from the same localities, Acapulco and 
Salina Cruz. The prothorax is more rounded at the sides than in the following 
species. Perhaps a winged form of Pantomorus stupidus, Boh., an insect occurring 
at the same places in Oaxaca. ‘The two specimens figured are from the same locality, 
Acapulco. 
2. Naupactus virescens, sp.n. (Tab. X. figg. 9, ¢; 10, 2, var.) 
Moderately elongate, narrow (¢ ), broad ( @ ), nigro-piceous ; (¢ ) thickly clothed with green or bluish-green 
scales, sometimes with cinereous scales intermixed, the prothorax with two narrowly separated vitte on 
the disc and another on each side, and the elytra with the suture, a line down the interstices 5 and 7, 
and a streak on 3 below the base, infuscate or more sparsely squamose, the surface also set with a short 
rough, decumbent setosity; (@) uniformly clothed above and beneath with pale green scales. Head 
and rostrum densely punctate and narrowly sulcate; joint 2 of the funiculus twice as long as 1. 
Prothorax transverse, bisinuate at the base, somewhat conical in @, the sides parallel behind in ¢; 
densely, finely punctate, obsoletely canaliculate at the base. Elytra a little wider than the prothorax, 
feebly sinuate at the base; punctate-striate, the interstices almost flat and densely punctulate. First 
ventral segment hollowed down the middle in ¢. Anterior tibi# sparsely denticulate and feebly 
unguiculate in both sexes. 
Length 84-104, breadth 24-451, millim. (d 2.) 
Hab. Mexico (coll. Pascoe), Tehuantepec (Sailé). 
Three males and one female, the former with more or less distinct dark stripes 
on the prothorax and elytra, the latter uniformly clothed with green scales. ‘The 
female corresponds with Pantomorus uniformis, of which the present species may 
prove to be a winged form. The male has the sides of the prothorax less rounded, 
and the female the elytra less sinuate at the base and relatively shorter, than in 
N. sulfuratus. 
3. Naupactus laticeps, sp. n. (Tab. X. fig. 11, 2.) 
Oblong, narrow (¢ ), broader (@ ), black or piceous, the elytra sometimes brown; the head and rostrum, the 
prothorax with two curved vitts on the disc and another on each flank, the elytra with an interrupted 
stripe on the disc (formed by three confluent streaks—the first oblong, the second triangular and oblique, 
the third elongate), the fifth interstice in part, and a strongly sinuate band on the flank, the legs, and 
under surface, thickly clothed with small cinereous or whitish scales, the rest of the upper surface set 
with scattered darker scales, the head, prothorax, and elytra also with a short, rough, decumbent 
setosity. Head and rostrum densely punctate and narrowly sulcate, the head broad, short, the eyes 
BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 3, May 1911. 2 HH 
