F. Cnapuis. — Synopsis des Scolytides. 243 
Palporum labialium articulus À basin versus angustatus, elon- 
gatus, sequentibus duobus multo longior. 
4. D. micans. Kugel. — Oblongus, subnitidus, niger vel 
ferrugineus, flavo-hirlus ; capite sat dense punctato-rugoso, 
medio impresso ; prothorace longitudine dimidie latiort, 
versus apicem fortiter constricto, laleribus a basi ultra 
medium subrectis, dein rotundatim convergentibus et sinuosis, 
supra convexo, fortiter et inæqualiter punctato, linea media 
levi, antice subcarinata ; elytris amplis, convexis, fortiter 
punctato-siriatis, striis vix impressis, interslitiis subplanis, 
rugulosis, sat dense tuberculatis. — Long. 8 — 9 mill. 
Allemagne. 
2. D. valens. Le C. — Oblongus, subnitidus, nigro vel 
rufo-piceus, flavo-hirtus, capile creberrime granulato-rugoso, 
inæquali, sæpius medio impresso ; prothorace longitudine 
multo latiori, versus apicem subconstricto, lateribus a basi 
leniter dein fortius angustatis, fortiter et densissime punctato, 
linea media levi subcarinata, plus minusve abbreviata ; elytris 
amplis, convexis, striato-punctalis, striis latis, vix impressis, 
punctis nitidis, submarginatis, intersttiis granulis et rugulis 
brevibus transversis densius asperatis. — Long. 8 — 9 mill. 
Amérique boréale, Californie, Orégon, New-York, etc. 
3. D. obesus. Mann. — Oblongus, subnitidus, uigro vel 
rufo-piceus, flavo-hirtus , capite sæpius in vertice canalicu- 
lato, in fronte tuberculato-punetato ; prothorace longitudine 
plus dimidio latiori, apice fortiter constricto, subtiliter sat 
dense punctato, linea media levi subcarinata, plus minusve 
interrupta, elytris subeylindricis, striato-punctatis, punctis 
striarum parvis, nitidis, in declivitate obsoletis; interstitiis 
latis, tuberculatis rugulisque transversis densissime aspera- 
lis, in declivitate nonnunquam læviuseulis. — Long. 6 mill. 
Sitka, Orégon. 
4. D, terebrans, Oliv, — Oblongus , subnitidus , niger , 
