PITYOPHTHORUS. 243 
club narrow, subacuminate, the basal joint short, separated by a well-marked subtransverse suture from 
the succeeding joints, the other sutures indistinct, rounded. Prothorax not longer than broad, widest at 
the base, the sides behind nearly straight, gradually rounded forwards in an elliptic curve, the anterior 
margin granulate, hind angles rectangular; surface moderately curved, gradually declivous in front, with 
no discal elevation, its anterior half with fine, close, confused granulation, its posterior half with rather 
fine punctuation, the median line impunctate but not elevated, the interspaces with a close fine 
shagreening. Scutellum moderately large, obtuse-triangular, dull. Elytra as wide as the prothorax and 
three-fourths longer, parallel-sided to the hinder third, thence incurved, apex strongly rounded but not 
subacuminate; surface with rows of extremely fine punctures without striate impression, interstices 
narrow, with very fine close ruge, and interspersed with minute punctures; declivity beginning at the 
hinder third, uniformly and strongly convex. Underside piceous; pygidium visible from beneath. Tarsi 
short and moderately slender. 
- Hab, Guatemata, Las Mercedes (Champion). 
One example. This insect is separated from the species of the group represented by 
P. pubipennis by the distinct punctuation of the base of the thorax and the lineato- 
punctate elytra. The form of the antennal club recalls that of Styphlosoma granulatum, 
from which P. odsoletus is distinguishable by the smooth surface and declivous pygidium. 
13. Pityophthorus pubipennis. 
Tomicus pubipennis, Lec. Pac. Railr. Expl. & Surv. xi., Ins. p. 59°. 
Cryphalus pubipennis, Lec. Trans. Am. Ent. Soc. 1868, p. 156°. 
Pityophthorus pubipennis, Lec. Rhynch. N. Am. p. 351°; Eichh. Rat. Tom. p. 197°. 
Hab. Nortu America, Sonoma (Ricksecker) and San José! in California —GuaTEMALA, 
San Gerénimo (Champion). 
The single specimen taken by Mr. Champion agrees in all respects with Leconte’s 
description and with named examples from California taken by Mr. Ricksecker and 
Mr. Wickham. Those before me vary from 1-7 to 2°3 mm. in length, the Guatemalan 
example being the smallest. 
The succeeding species differ considerably from normal Pityophthori in the shape 
of the antennal club; but they are here included in the genus on account of the 
difficulty of ascertaining from such limited material sound characters on which to 
treat them independently. 
14. Pityophthorus incompositus, sp. n. 
Oblongus, sat nitidus, badius; antennarum clava ovali, suturis valde curvatis ; prothorace anterius parum 
constricto, disco posterius preter lineam mediam levem sat distincte, lateraliter obsoletius punctato ; 
elytris tenuissime lineato-punctatis, apicem versus sparsim erecte setosis, declivitate utrinque prope 
suturam impressa, levi, marginibus subtuberculatis. 
Long. 1°6 millim. 
Oblong, rather shining, bright testaceous-brown. Front rather flat, strongly punctured, the mouth fringed 
with yellow pubescence ; funiculus short, the club oval, with strongly curved fringed sutures (almost as 
in Xylocleptes), the basal joint shining. Prothorax longer than broad, widest at base, slightly constricted 
in front, the apex broadly rounded, the hind angles obtuse ; disc subgibbous before the middle, behind 
obscurely impressed on each side, irregularly tuberculate and very shortly pubescent in front, its basal 
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