PITYOPHTHORUS. 245 
Oblong, suboval, glabrous, bright ferruginous. Front convex, punctured ; antennal funiculus short, the club 
not large, ovoid, with curved sutures. Prothorax as long as broad, semielliptic, widest at the transverse 
and feebly margined base, the sides almost regularly curved save for a slight constriction towards the 
sharply rounded apex, separated from the flanks by a fine ridge ; surface uniformly convex, declivous and 
finely asperate in front, the asperities weaker behind and replaced towards base by rather fine close 
punctures, absent over the middle line, interspaces closely reticulate and dull. Scutellum obtuse-trian- 
gular, shining. Elytra as wide as or a little wider than the prothorax and one-third longer, their sides 
subparallel to the hinder third, thence gradually incurved, the apical margin obtusely rounded ; surface 
shining, with regular rows of fine punctures, the sutural row weakly and rather broadly impressed, 
interstices flat, reticulate, subimpunctate ; apical third strongly declivous and convex, slightly flattened 
from side to side, with the margins of the suture raised. ‘ibis narrow, spinose above, and truncate at 
apex. Pygidium visible from beneath. 
Hab, Mexico (A. Deyroile). 
Two examples in my own collection. This species is somewhat removed in appear- 
ance from most of the genus, and to a certain extent suggests a Hexacolid. It does 
not, however, belong to that group. 
17. Pityophthorus deyrollei, sp. n. 
Oblongus, subopacus, breviter subequaliter pilosus, piceus, antennis et pedibus fusco-flavis ; prothorace semi- 
elliptico, anterius haud constricto, dorso post medium dense profunde punctato, linea media levi; elytris 
irregulariter punctato-striatis, stria suturali impressa, in declivitate cum secunda ad sulcum subsuturalem 
faciendum conjuncta, interstitiis punctis setiferis raris ornatis, apice obtuso. 
Long. 2°5 millim. 
Oblong, rather dull, pitchy, with short rather fine pubescence. Head strongly punctured and fringed over 
mouth ; eyes oval, emarginate; antenne fuscous-yellow, the funiculus very short, the club rather large, 
suborbicular, with strongly curved sutures, the inner half of the basal suture strongly chitinized and 
darker. Prothorax semielliptic, as long as broad, finely margined and bisinuate at base, the sides incurved 
from the basal third, and more strongly rounded but not constricted towards the apex ; disc without median 
elevation, uniformly pubescent, its anterior half asperate, the posterior half strongly and closely punctured, 
with a smooth median line. Scutellum triangular, rugosely punctured, and impressed. LElytra one-third 
longer than the prothorax and as wide at base, subparallel to behind middle, then incurved, rather 
obtusely rounded at apex; surface subcylindrical to the hinder third, then strongly declivous and convex, 
with weakly impressed irregular strie of rather small punctures, the sutural stria impressed almost from 
base, becoming confluent with the second on the declivity to form a sulcus on each side of the suture ; 
interstices with irregular single rows of equally strong but sparser piliferous punctures, becoming confused 
externally with those of the strie; declivity punctate-striate, with a callous ridge external to the sulcus, 
and with the sutural margins somewhat raised. Legs fuscous-yellow, the tibie narrow, spined externally 
and truncate at apex. 
Hab. Mexico (A. Deyrolie). 
Two examples in my own collection. 
18. Pityophthorus incommodus, sp. x. 
Oblongus, opacus, pube brevissima vestitus, fusco-ferrugineus, capite fusco-nigro ; prothorace latitudine longiore 
fere semielliptico, dorso confuse granulato, granulis posterius subtilioribus ; elytris confuse leviter punc- 
tulatis, in dimidia parte apicali juxta suturam stria singula notatis, marginibus suture inde subelevatis, 
declivitate convexa breviter seriato-setosa. 
Long. 2°2 millim. 
Oblong, dull, fusco-ferruginous, covered with very short, uniformly scattered decumbent hairs. Head large, 
