F. Cnapuis. — Synopsis des Scolytides. 253 
6. P. rudis. Eichh. — Breviter ovatus, subopacus , ferru- 
gineus vel brunneus ; prothorace longitudine latiori, densis- 
sime punetato-rugoso, tuberculis compressis asperato; elytris 
crenato-siriatis, interstitiis versus apicem angustatis, rugulis 
transversis versus basin densissimis ornatis, versus apicem 
subtuberculatis. — Long. 3 — 3 ‘/, mill. 
Cayenne. Brésil. 
T. P. puncticollis. — Breviter ovaitus, subnitidus, rufo- 
brunneus ; prothorace longitudine latiori, profunde et dense 
punctato, ad angulos anticos tuberculato, linea media levi, 
subearinata, antice abbreviata; elytris crenato-striatis, inter- 
stitiis planis, apicem versus subangustatis, rugulis trans- 
versis versus basin densissimis, versus apicem subtubercu- 
latis. — Long. 2 ‘£ mill. 
Brésil. 
8. P. oliquus. — Breviter ovatus, subopacus, nigro- 
piceus, antennis tarsisque rufescentibus; prothorace longitu- 
dine latiori, in disco fortiter et dense punctato, tuberculis 
compressis asperato, linea media antice abbreviata levi et 
subcarinata; elytris crenato-striatis, luterstitiis planis, versus 
apicem angustatis , rugulis transversis abbreviatis, oblique 
dispositis, versus basin confertis, in declivitate tubereculis 
raris ornatis. — Long. 3 ‘/, mil. 
Mexique. Nouvelle-Grenade. 
9. P. sulcifrons. — Breviter ovaius, subopacus, nigro- 
piceus, antennis tarsisque rufescentibus ; fronte medio suleata; 
prothorace longitudine paulo latiori, in disco fortiter et dense 
punctato, apicem versus punctato-rugoso, ad Jatera dense 
tuberculato, elytris crenato-striatis, interstitiis planis, versus 
apicem angustatis, rugulis transversis brevibus, ad basin 
confertissimis , granulis in parte discoïdali congestis, dein 
in dechivitate uni-serialis, ornatis. —- Long. 3 ‘} mill. 
Nouvelle-Grenade, 
