of Geodej)hagous Coleoptera from China. 329 
Onycholabis, nov. gen. 
Facies Anchomeni. Caput breve, antice et postice 
subito angustatuin. Mandibvilas valde elongata3, acute, 
curvatiB. Maxillge elongatissiniEe, curvat^, versus apicem 
intus nuda3, prope medium unispinosa?. Palpi elongati, 
graciles, articulo ultimo pra^cedenti fequali, leviter ftisi- 
formi, truncate. Mentum dente mediano emarginato. 
AntennEe elongat^e, graciles, articulo tertio quam quarto 
multo longiori, et longe pubescent!. Tliorax cordatus, 
basi fortiter constrictus. Pedes graciles, tarsorum quatuor 
anticorum articulum 4*"'" valde emarginatum, fere biloba- 
tum ; ungues simplices. Corpus glabrum. 
Closely related to Cardiomera, — the antennae, as in that 
genus, being clothed with woolly pubescence from the 
third to eleventh joints. The tarsi are also very similar; 
but the form of the head and thorax is totally different, 
and the singular claw-like and elongated shape of the 
mandibles and maxilla is quite peculiar. I only know 
the $. 
Onycliolahis sinensis, n. sp. 
Nigro-piceus, nitidus, partibus oris, antennis et pedibus 
flavo-testaceis ; capite et thorace angustis subl^evibus, hoc 
fere cyathiformi, postice fortiter angustato, lateribus ante 
basin rectis, angulis posticis acutis, disco transversim stri- 
goso, marginibus punctato-rugosis ; elytris amplis, versus 
apicem gradatim angustatis, punctato-striatis, striis versus 
apicem fortissime impressis. 
Long. 4^ lin. 2 . 
Banks of Yang-tsze-Kiang, in Sze-Chuen (Mr. Consul 
Svvinhoe). 
Anchomenus (^Agonuvi) irideus, n. sp. 
Elongato-ovatus, nigro-piceus, sericeo-micans, elytris 
iridescentibus ; palpis, pedibus antennisque testaceo-i-ufis, 
his articulis 2—4 nigro-plagiatis ; capite ovato, oculis 
modice prominulis ; thorace quadrato-ovato, lateribus regu- 
lariter arcuatis, angulis posticis rotundatis, supra Irevi, 
marginibus rufescentibus ; elytris oblongo-ovatis, amplis, 
fortiter striatis, interstitio 3^° tripunctato, margine deflexo 
fulvo-piceo ; tarsis omnibus utrinque sulcatis. 
Long. \.\ lin. $ . 
Hong Kong. Apparently allied to A. Chincnsis 
(Bohem.). 
