284 Mr. H. W. Bates on the 
Subfam. Trigonotominje. 
Trigonotoma Lewinii, n. sp. 
Elongata, gracilis, convexa ; capitc tlioraceque supra 
IjBte aureo-cupreis nitidis, elytris cupreo-nigris, iridesceu- 
tibus ; antennis, pedibus corporeque siibtus iiigro-piceis ; 
thorace rotuiidato-cordato, angulis posticis valde obtiisis ; 
elytris fortiter j^unctato-sulcatis. 
Long. 8 lin. S. 
lliogo ; Nagasaki, on Mount IMitsyama. 
Difiers from the Chinese T. Dohrnii by its smaller size 
and narrower form, and by the deeply sulcate elytra. Head 
as in that species ; labrum semicircularly emarginatcd ; 
palpi piceous-tawny ; labials in the $ broadly triangular ; 
surface brilliant coppery. Thorax of the same brilliant 
copper colour as the head, much less quadrate than in 
T. Dohrnii ; sides very strongly rounded, more narrowed 
behind than in front, with the hind angles obtuse, almost 
rounded ; surflice almost smooth ; base without punctures, 
except fiiint indications in the broad fovea3. Elytra shining 
coppery-black, with iridescent reflections ; stria? forming- 
broad and deep sulci from base to apex ; strongly crenu- 
latc-punctatc. The antenna? are strongly geniculatcd ; 
l)lack, rufescent towards the tips. The sides of the pro- 
sterna and metasterna are very coarsely punctured. 
Triplogenius ingens, Morawitz ( Omaseus), Beitr. Kiiferf. 
Ins. Jesso, p. 54 ; Chaudoir, Ann. Soc. Ent. Belg. 
t. xi. p. 154 ; Omaseus magnus, Motsch. Etud. 
Entom. 1860, p. 5. 
Hiogo ; Nagasaki, abundant. Also China, apparently 
common. 
Tr. cupresccns. 
Trigonognatha cuprescens, Motsch. Etud. Entom. 1857, 
p. 26. 
Simoda. 
jNIr. Lewis did not meet with this species, in which the 
thorax and elytra are described as cupreous, and the striiu 
of the elytra as deep and impunctate. 
Subfam. PTEKOSTICIIINyE. 
Pvccilus planicoUis, Motsch. Etud. Entom, 1860, p. 5 ; 
F. cujjreus, L., Moraw. Beitr. p. 44 (?). 
Nagasaki ;"Awomori. 
The few Japanese specimens I have seen all diller from 
