ALETHIA., 419 
before the base, the basal fovese obsolete, the surface very closely and rugosely punctured ; elytra very 
long, parallel to far beyond the middle, very much wider than the prothorax, much depressed on the disc, 
the humeri swollen and prominent, the surface very minutely punctate-striate, the interstices perfectly flat 
and very minutely and rather sparsely punctured, the punctures confounded with those of the strix; 
beneath more shining, finely and rather closely punctured ; legs brownish-piceous, very long, the tarsi 
especially, the first joint of the posterior tarsi exceedingly elongate. 
Length 10 millim.; breadth 3 millim. (¢ ) 
Hab. Mexico, Guanajuato (Sailé). 
Two male examples. This insect is allied to 4. lepturoides and A. sall@i; from the 
former it differs in its more depressed form, longer and much more slender antenne, 
very much longer elytra, more prominent humeri, shorter pubescence, and the much 
longer first joint of the posterior tarsi; and from the latter by its much flatter and more 
sparsely punctured elytra, &c. The elytra at first sight, as in several of the allied 
species, appear to be confusedly punctured; but when examined under a strong lens 
the regular rows of minute punctures can easily be detected. 
5. Alethia lepturoides. (Tab. XIX. figg. 9,94, ¢.) 
Elongate, narrow, depressed, dull brownish-black, thickly clothed with long pubescence. Head very closely and 
rugosely punctured ; eyes rather large and convex; antenne (¢) long, comparatively stout, fusco-ferru- 
ginous; prothorax small, strongly transverse, moderately convex, the sides almost straight behind but 
rounded in front, the hind angles rather obtuse, the disc a little flattened before the base, the basal foves 
obsolete, the surface punctured like that of the head ; scutellum sparsely punctured ; elytra long, parallel 
in their basal half, depressed, very much wider than the prothorax, with rows of exceedingly minute punc- 
tures placed upon very fine obsolete striz, the interstices flat and very minutely and rather thickly punc- 
tured, the punctures confounded with those of the striz ; beneath more shining, finely and rather closely 
punctured, the metasternum closely and coarsely so at the sides; legs fusco-ferruginous. 
g. The lateral lobes of the last ventral segment abruptly curved inwards about the middle, the apices blunt 
and converging; the central sheath rather narrow, the apical portion bent upwards, the apex blunt. 
(Fig. 9 a.) 
Length 9-93 millim.; breadth 2? millim. (<¢.) 
Hab. Mexico (Sallé). 
Three examples. This species, on account of its long and rather stout antenne and 
prominent eyes, has somewhat the facies of a Leptura. 
6. Alethia funerea. 
Elongate, rather narrow, black, opaque, thickly clothed with short pubescence. Head very closely and rugosely 
punctured; eyes convex, large; antenne (¢) stout, moderately long, tapering a little outwardly, fusco- 
ferruginous ; prothorax transverse, but not strongly so, moderately convex, the sides almost straight 
behind and very gradually narrowing in front, the hind angles obtuse, the disc slightly flattened before 
the base but otherwise unimpressed, the basal foves obsolete, the surface punctured like that of the head ; 
scutellum closely punctured; elytra moderately long, subparallel, much wider than the prothorax, with 
rows of very minute punctures placed upon obsolete strie, the interstices perfectly flat and with exceedingly 
minute punctures ; beneath rather dull, finely and rather closely punctured, the metasternum closely and 
coarsely so at the sides; legs fusco-ferruginous. 
Length 9 millim.; breadth 3z millim. (¢.) 
Hab. Muxico, Chilpancingo in Guerrero (Hoge). 
3 HH 2 
