B04 Mr. Gitbae J. Arrow’s List of 
the head and part of the lower surface black. It is of 
broadly oval form and well punctured above and beneath. 
There is a rather wide and closely-punctured space on 
each side of the elytral suture, the first stria being practic- 
ally obliterated. The metasternum is closely punctured 
in the middle and much less closely at the sides. The 
club of the antenna is rather long and compactly jointed. 
46, Tritoma alternata, sp. n. 
Nigra, capite (oculis exceptis), prothorace, elytrorum fascia lata 
mediana communi, pedibus antennisque (clava fusca excepta) 
pallide flavis; oblonga, modice angusta, convexa, nitida, capite 
et pronoto fortiter punctatis, hoc medio paulo subtilius, oculis 
parum parvis, clypeo antice leviter emarginato; prothoracis 
marginibus lateralibus subtiliter arcuatis, angulis omnibus obtuse 
rectis, basi haud valde lobato; scutello vix transverso; elytris 
distincte lineato-punctatis, interstitiis irregulariter et parcius punc- 
tatis; prosterno fortiter punctato, metasterno minus fortiter, medio 
parce punctato; antennis gracilibus, clava laxe articulata. 
Long. 4—5-5 mm.; lat. max. 2 mm. 
Laos: between Luang Prabang and Vientiane. 
This has the narrow form which serves as practically 
the only distinguishing feature of the genus T'riplaz, but, 
as the proportions vary with every species, it is not possible 
to find any natural dividing line in this respect.. The 
coloration is peculiar. The head, prothorax, a broad trans- 
verse band crossing the middle of the elytra from side to 
side, the antennae (except the club), the legs and the 
prosternum and mesosternum are pale yellow, the re- 
maining surface black. The antennae are rather long 
and slender, with a narrow loosely-jointed club, and the 
tibiae are not very broad. The puncturation of the head 
and pronotum is strong and the elytra have well-marked 
rows of punctures, between which are incomplete rows of 
similar punctures. 
47. Tritoma solitaria, sp. n. 
Pallide flava, elytris nigris clavaque antennali fusca; oblonga, 
modice elongata, convexa, nitida, capite et pronoto sat fortiter 
punctatis, clypeo angusto, haud emarginato, prothoracis lateribus 
subtiliter arcuatis, angulis omnibus obtuse rectis, baseos medio 
late lobato; scutello transverso, laevi; elytris distincte lineato- 
punctatis, interstitiis parce et subtilissime punctatis, prosterno 
