RHYSSOMATUS. 335 
general shape, the narrowly separated eyes, the more rounded sides of the prothorax, 
and the somewhat rugulose elytral interstices. &. crispicollis, Boh., from Cuba, 
appears to be more oval in shape. The following is perhaps an extreme form of it. 
13. Rhyssomatus sculpturatus, sp. n. 
Very like BR. sculpticollcs, but more closely pubescent, the pubescence on the elytra often fasciculate ; the elytra 
themselves a little more widened anteriorly (their general shape subcordate), with the interstices more 
closely and distinctly rugulose, in some specimens rufescent mottled with black. 
Length 4—73, breadth 23-3? millim. (¢ 9.) 
Hab. Mexico, Villa Lerdo in Durango, Matamoros Izucar, Acapulco, Jalapa, 
Cordova, Tapachula (Hége), Chilpancingo, Amula, Tepetlapa, Cuernavaca (HH. H. 
Smith), Oaxaca (Sal/é). 
Twenty-two specimens. Also very like the North-American &. palmacollis, but 
with the elytra less opaque and more distinctly striate, the interstices rugulose. 
Var.? 
The third and fifth elytral interstices not costate to the base; the pubescence sparser. 
Length 44-73, breadth 24-34 millim. (¢ 9.) 
Hab. Mexico, Jalapa (Hoge) ; GuatEmALA, El Reposo, Cerro Zunil, Zapote (Champion). 
Hight specimens. 
Var.? 
The eighth elytral interstice feebly costate throughout, and sometimes the sixth also. 
Hab. Guatemata, San Gerénimo (Champion). 
Five specimens. 
14. Rhyssomatus punctato-sulcatus, sp. n. 
Oval, rather dull, nigro- or rufo-piceous, the antennz and tarsi obscure ferruginous, finely pubescent. Head 
densely, rugulosely punctate, the eyes almost or quite contiguous; rostrum (¢) stout, feebly curved, 
about as long as the head and prothorax, closely, rugulosely punctate, and obsoletely pluri-carinate in its 
basal half, (2) a little longer, more slender, almost straight, and much smoother in its apical half, the 
antenne inserted at the middle in the 9, and nearer the apex in the ¢. Prothorax strongly transverse, 
narrowing from the base, slightly rounded at the sides anteriorly, and constricted in front; closely, 
obliquely strigose, with, at most, the faintest indication of a median carina. Elytra wider than the 
prothorax, oval; punctato-sulcate, the punctures deep and oblong in shape, the interstices closely and 
finely rugulose, 3, 5, 7, 9 moderately costate from the base to the apex, and 8 and 10 costate at the base, 
the suture also raised. Legs short, moderately stout ; intermediate and posterior tibie sharply angulate 
externally and ciliate thence to the apex. 
Length 4-5, breadth 2-23 millim. (¢ 2.) 
Hab. Mexico, Chilpancingo (H. H. Smith), Tapachula (Hoge); Guatemana, Las 
Mercedes (Champion). 
Five specimens, all from the Pacific slope. ‘This insect closely resembles R. sculpti- 
collis, but may be recognized by the sulcate elytra, the more contiguous eyes, and the 
almost straight rostrum of the female, the latter being similarly curved in the two 
sexes of R. sculpticollis. The median carina of the prothorax is usually obsolete. 
