the Erotylid Coleoptera of Indo-China. 293 
basin utrinque impresso, puncto minuto profundo signato, margine 
antico leviter arcuato, utrinque paulo impresso, angulis anticis 
rotundatis, lateribus fere rectis et parallelis, angulis posticis vix 
obtusis; scutello latissimo; elytris longis, subtiliter striatopunc- 
tatis, apicibus rotundatis, haud truncatis : 
3, pedum anticorum femoribus arcuatis, tibiis intus lamina obtusa 
prope medium instructa. 
Long. 18-245 mm.; lat. max. 7-9 mm. 
Uprer Mexone R.: Pou Bia, Pak Ho, Kok Ya (Oct., 
Jan.). 
This is very nearly allied to H. burmanica Gorh. and 
praenobilis Lewis (Japan). Its red and black markings 
are almost those of the latter, but the red shoulder-mark 
has a black spot upon the summit of the callus and the 
apical mark has an arched hinder edge. In addition, the 
upper surface is a little less glossy and the pronotum is 
without the strong punctures at the sides and base. It is 
still more closely related to #. birmanica (which, however, 
has the elytra entirely black), but the forelegs of the male 
are different from those of both the other species, being less 
slender and bearing a long carina, instead of a tooth, at 
the inner edge. Of EF. birmanica (male), Gorham says : 
“ anterior femora armed with an acute tooth a little before 
the middle and an obtuse one near the base,” and, com- 
paring it with #. praenobilis, “in the male the tooth on 
the inner side of the front femora is quite differently 
situated.” This is an error, for, although the femora have 
a prominence at the extremity, it 1s the tibia and not the 
femur which he is describing. 
21. Micrencaustes dehaani Cast. 
Laos: Luang Prabang, Xieng Khouang (April, May). 
A species ranging from Assam to Java. 
22. M. atropos Kuhnt. 
Unknown to me. 
23. M. liturata Macl. (and var. nigripennis Kuhnt). 
Laos: Luang Prabang, Xieng Khouang, Vien Vai, Ban 
Sai (Sept., Nov., March—May). 
This was found in great abundance. The red apical 
mark is generally, although not always, absent in these 
specimens. 
