428 HETEROMERA. 
their basal half, finely and rather deeply punctate-striate, the interstices slightly convex and closely and 
confusedly punctured ; beneath more shining, closely and somewhat coarsely punctured; legs moderately 
stout, more or less ferruginous, the tibie a little darker; anterior and intermediate tarsi with the third 
and fourth joints, and the posterior tarsi with the penultimate joint, feebly lobed beneath. 
3g. Anterior tibia simple. The lateral lobes of the last ventral segment broad and spoon-shaped, very 
broadly rounded and slightly setose at the apex; the central sheath narrow, the apical portion long, the 
apex blunt. (Fig. 22.) 
Length 73-72 millim.; breadth 24 millim. (¢.) 
Hab. Mexico, Cordova (Sallé); Guaremana, Capetillo (Champion). 
Seven examples, apparently all males. In the size and approximation of the eyes 
in the male this species is intermediate between H. oculatus and H. tarsalis; from the 
corresponding sex of the former it differs in the shorter, stouter, and entirely ferruginous 
antenne, less approximate eyes, &c.; and from the latter in the feebly dilated tarsi and 
the larger eyes in the male, shorter elytra, &c. 
The specimens vary a little in the shape of the thorax, one or two having the sides 
rather more parallel before the base. 
7. Hymenorus pini. (Tab. XIX. fig. 21, ¢.) 
Moderately elongate, rather depressed, brownish-black, shining, sparsely pubescent. Head closely and finely 
punctured, the vertex rather more coarsely so; eyes (¢)small and widely separated; antenne(¢ ) rather 
short, moderately stout, ferruginous; prothorax transverse, slightly convex, the sides very gradually 
converging from the base to about the middle and then rounded, and more rapidly narrowing to the 
apex, the hind angles obtuse, the basal fovee shallow, the disc a little flattened before the base, the 
surface finely and somewhat closely punctured; scutellum closely punctured ; elytra moderately long, 
distinctly wider than the prothorax, the sides almost straight though gradually widening to beyond the 
middle, depressed on the disc, with rows of fine oblong punctures placed upon shallow strie, the inter- 
stices flat and each with about two rows of very fine punctures; beneath finely and rather closely 
punctured; legs long and slender, ferruginous, the third and fourth joints of the anterior and intermediate 
tarsi and the penultimate joint of the posterior tarsi feebly lobed beneath. 
3g. Anterior tibie simple. The lateral lobes of the last ventral segment very short and broad, consisting only 
of a triangular extension of the segment on each side; the central sheath with its apical portion very 
long, the apex blunt and slightly curved downwards. 
Length 74--84 millim.; breadth 23-3 millim. (¢.) 
Hab. GuatEMALA, Totonicapam 10,000 feet, Quiche Mountains 8500 feet (Champion). 
Three examples, all males. This species differs from all others of the genus here 
described in the more sparsely punctured surface of the thorax. H. pini inhabits the 
pine-forest region of Los Altos, Guatemala. 
8. Hymenorus canaliculatus. 
Elongate, narrow, rather depressed, reddish-brown, the prothorax slightly suffused with piceous, opaque, 
thickly pubescent. Head very closely and somewhat coarsely punctured; eyes moderately large, widely 
separated; antenne rather stout, moderately long; prothorax transverse, rather depressed, the sides 
straight behind and very gradually narrowing and rounded in front, the hind angles subrectangular, the 
disc impressed in the middle before the base, and very distinctly canaliculate, the basal fovee indistinct, 
the surface finely and very densely punctured; scutellum closely punctured; elytra long, subparallel to 
beyond the middle, a little wider than the prothorax, finely and shallowly punctate-striate, the interstices 
