Endomychid Coleoptera of Indo-China. 323 
Jess convex, less rounded at the sides, and with much less 
distinct lateral margins. The club of the antenna also is 
rather narrower. 
In the male the tooth of the front tibia is strong, the 
middle tibia is excised at its inner edge, but without a 
distinct tooth at the upper limit of the excised part, and the 
terminal segment of the abdomen is less broadly bilobed 
than in LE, klugi. 
Engonius opacicollis, sp. n. 
Niger, opacus, elytris eneo-nigris, nitidis, singulo fasciis duabus 
pallide flavis ornato, fasciis irregularibus, angustis, anteriori 
posthumerali, fere ad-marginem externum attingenti, posteriori 
subapicali; oblongus, convexus, pronoto sat lato, subtiliter 
punctato, medio longitudinaliter sulcato, lateribus medio paulo 
dilatatis, antice et postice leviter convergentibus, angulis anticis 
productis, obtusissimis, posticis fere rectis; elytris ubique 
crebre punctatis, antennarum articulo tertio quam quarto haud 
duplo longiori,-tibiis 4 anterioribus valde arcuatis : 
do, tibia antica apice intus excisa, femoribus et tibiis posticis 
intus longe ciliatis, segmenti ventralis ultimi spatio mediano 
quadrato abrupte elevato et utrinque carinato, 
Long. 9 mm.; lat. max. 5 mm. 
Xieng Khouang (May, December). 
Nearly related to E. signifer, Gorh., and with almost the 
. same elytral pattern, the two irregular transverse bars being 
merely a little narrower. It differs most markedly from 
that species in the opaque pronotum, which is also very 
much more finely and sparingly punctured and proportion- 
ally broader, with the front angles still more produced and 
blunt. The distinctive features of the male are as in H, 
siynifer, but the elevated plate upon the last ventral segment 
is larger and more quadrate. In both species there is also a 
pair of minute accessory tubercles at the posterior margin 
of the preceding segment. 
Eingonius brevipes, sp. n. 
Niger, nitidus, singulo elytro fasciis duabus transversis rufis 
ornato, anteriori post-humerali, fere ad marginem externum 
attingenti, medio constricta, posteriori anteapicali angusta, un- 
dulata; oblongus, modice convexus, pronoto lato, nitidissimo, 
medio haud sulcato, antice subtilissime punctulato, lateribus 
postice rectis, fere parallelis, antice regulariter arcuatis, angulis 
anticis obtusis, posticis fere rectis, foveis basalibus fortiter 
impressis, fere ad medium attingentibus; elytris ubique crebre 
22* 
