Ore ae wee ee le ee 
hi = ine - . 
the Erotylid Coleoptera of Indo-China. 287 
former becoming gradually less so from front to rear. 
The stridulatory files are much farther apart than in the 
latter species. The pronotum is not much broader than it 
is long, gently narrowed to the front and smoother at 
the sides, with the lateral margins well marked, especially 
near the angles, which are sharp, the anterior ones pro- 
duced. The elytra have rows of fine punctures, which 
vanish posteriorly. The prosternum is strongly and densely 
punctured in its anterior part and slightly carinate along 
the middle line, the carina terminating in a slight tubercle. 
The male has the front and hind tibiae curved and 
serrated at the inner edge, the hind tibiae having the 
serrations very well marked and not close together. 
2. Megalodacne elongatula, Crotch. 
Laos: Pak Lay (August). 
This species is easily recognised by the two lines of close 
irregular punctures which divide the pronotum longitudi- 
nally. The male has a minute tuft of erect hairs near the 
end of the last ventral segment. 
I may mention here that the Malaccan “ T'riplatoma’ 
varia of Gorham belongs to the genus Megalodacne, Gorham 
having been deceived by the similarity of its markings to 
those of 7’. gestroi Bedel. 
> 
3. Megalodaene vitalisi, sp. n. 
Nigra, modice nitida, singulo elytro fasciis duabus rufis ornato, 
antica obliqua, lunata, intra humerum ad basin attingenti (angulo 
humerali quidem nigro), postice medio dentata, fascia postica antea- 
picali, transversa, antice tridentata, postice arcuata; angustissima, 
convexa, antice et postice attenuata, capite fortiter punctato, clypeo 
angusto, oculis prominentissimis, grosse granulatis; pronoto ubique 
sat fortiter punctato, quam longitudinem parum latiori, lateribus 
antice leviter arcuatis, angulis acute productis, postice fere rectis, 
parallelis, angulis rectis, basi medio lobato, depresso; scutello 
transverso; elytris distincte seriato-punctatis, interstitiis subtiliter 
punctulatis; prosterno fortiter haud crebre punctato, metasterni 
medio fere laevi, lateribus parce punctatis; antennis gracilibus, 
prothoracis basin transientibus, clava laxe articulata. 
Long. 6-5-9 mm.; lat. max. 2-5-3-5 mm. 
Upper Mexona: Ban Nam Mo, Nam Mat, Pou Bia 
(Jan._June), Luang Prabang. 
Taken in great abundance. 
