290 :Mr. II. ^Y. Bates o}i the 
elytra arc very long, and not broader than tlie widest part 
of the thorax : the strongly-Impressed strire are faintly 
]Minctulate ; the xniderside is glossy. The antenna? are 
longer and more slender even than in Pf. fasc/'ato-pimc- 
tatiis. The palpi also arc long and slender, and the apical 
joints obtnse at the apex. The metathoracic episterna arc 
very small, and as broad as long. 
Pt. Yoritomus, n. sp. 
Piceo-niger politus, palpis pediljnsquc castaneo-rnfis ; 
capite post ocnlos niodicc incrassatis ; thorace qnadrato, 
antice modice rotnndato ct post medium sinimtim angns- 
tato, angulis posticis rectis ; basi toto pimctato ntrinqne 
fovea elongata lineari, alteraqne parva extcriori extus plica 
marginata ; eljtris elongato-ovatis, fortiter striatis, intcr- 
stitiis convexis, 3"' tripunctato. 
Long. 5^—Q lin. $ $. 
$ Segmento nltimo ventrali simplici. 
Nagasaki ; on INIt. INIitsyama. 
Shape similar to Pt. (^Platysmci) ohlonf/o-jJ2inctatus, 
glossy pitchy-black or brown ; legs and palpi chestnnt-red. 
The head and antenna^ are very similar to those of" Phi- 
ti/sma, bnt the palpi arc sharply trnncatcd, and the meta- 
thoracic episterna are mnch shorter. The thorax is rather 
convex, and very smooth and glossy ; the anterior angles 
not ])roduced, the sides gently ronnded to beyond the 
middle, then sinuate-angustate to where the rectangnlar 
hind angles slightly project ; the base is coarsely bnt 
faintly punctnred ; the larger fovea is long and linear, 
and there is an exterior mnch shorter one bonnded on the 
outside by a fold which extends to the hind margin. T'he 
elytra are deeply striated, the stria^ very faintly punctn- 
late, the interstices convex ; the jDostcrior sinuation is dis- 
tinct. Underneath the sides of the thoracic and of basal 
abdominal segments are very strongly pmicturcd. 
Curtonotus f/ujantcus^ Motsch. Ins. d. 1. Sibcrie, p. 173, 
t. 8. f 1. 
Nagasaki; Awomorl. Also Xorth of China. Frontiers 
of E. Siberia, towards jNIongolia ( ]Motsclndsky). 
The largest known species of the genus, 9 — 10 lines in 
length ; remarkable also for the large and especially broad 
head. The thorax is similar In shajie to that of C. ouUcus, 
))ut the widest ]iart is much nearer the anterior angles, and 
