of the Coleopterous Group Macrodactylides. 447 



Annam : Keng Trap (R. Vitalis de Salvaza, May). 



Of this also I have seen only the male, a single specimen. 



It is a species closely related to D. multicolor and pulchella, 

 especially the latter. It is smaller, narrower, and more 

 cylindrical in shape, and the pronotum is without the long 

 erect hairs occurring in D. pulchella. The coloration and 

 pattern are similar, but the pronotum, in addition to the 

 yellow border, has a median line of grey setse by which the 

 black disc is divided into two patches, and the pale scales 

 of the elytra form irregular longitudinal stripes, the first 

 extending from the middle of the suture to the apex, the 

 second from the base to beyond the middle of the elytron, 

 and the third from the middle to near the extremity. There 

 are two other very short longitudinal bars at the base, of 

 which the outermost reappears just before the middle. The 

 pygidium (in this sex) is narrow and densely clothed with 

 grey scales. 



Dichelumoi'pha nitidicollis, sp. n. 



3 . liufa, capita pronotoquo nigris, capite, pronoti lateribus, 

 scutello elytriaque sat dense flavo-setosis ; sat angusta, capite 

 crebre punctnto, margine rotundato, refleso ; pronoto nitido, sat 

 crebre, antice et lateraliter creberrime, punctate-, disco pilis 

 griseis erectis sat parce vestito, lateribus antice fortiter arcuatis, 

 postice fere rectis, valde contractus ; elytris lateraliter leviter 

 arcuatis, ante apices longe sat late fulvo-penicillatis ; pygidio 

 sat dense fulvo-setoso, corpore subtus pedibusque longe i'ulvo- 

 hirsutis ; an tennis tarsisque gracilibus, tibia antica sat fortiter 

 bidentata, unguibus nainutissime fissis. 

 Long. 8 mm. ; lat. max. 4 mm. 



Upper Mekong It. : Houei Sai (R. Vitalis de Salvaza, 

 May). 



Only a single male specimen is known. It is reddish 

 brown, with the head and pronotum black, and clothed with 

 rather long yellow hair beneath and with minute yellow setae 

 above, except -upon the disc of the pronotum, which is 

 shining black and bears only a thin clothing of erect short 

 hairs amongst which longer hairs are scattered. The lateral 

 margins bear close-set orange setse, and there is a minute 

 grey tuft at the middle of the base. The scutellum and 

 elytra are fairly closely covered with buff-coloured setse, 

 which are sparser on the anterior part of the elytra and 

 much less conspicuous at the sides. There is a rather broad 

 ante-apical fringe of long yellow hairs crossing the suture, 



