404 Dr. G. A. K. Marshall on new 



strongly curved at one-third from the base, the outer margin 

 sinuate in the apical half, the inner margin with a very 

 large laminate tooth, the posterior edge of which is broadly 

 Hatteued, the posterior tibia) simple ; the front coxai 

 obtusely tubcrculate in the <^ . Sternn/n with the space 

 between the front eoxic as broad as that betwceu the middle 

 pair. 



Length 8-75-11 mm., breadth 3 25-1 mm. 



Sumatra : Merang ( IV. Doherty). 



Described from six specimens. 

 '• Most nearly allied to A. se/latus, Fst., a narrower species, 

 which has a common broad suturul stripe on the basal third 

 and the dark area surrounding it is much dilated behind 

 (parallel-sided iu subsellaius) ; the prothorax is as long as 

 broad and a little narrower than the elytra; the sadille-like 

 basal depression on the elytra is much deeper; the 7th joint 

 of the fuuicle is longer thau the club, etc. 



Alcides arcicollis, sp. n. (PI. VII. fig. 8.) 



(^ . Form subeylindrieal ; integument black, with pale 

 markings formed of broad plumose scales covered with 

 yellow powdering; the pronotum with a median stripe which 

 is broad iu the basal half and rapidly narrows in front, 

 reaching only the subapical constriction, and the broader 

 lateral stripes more oblique than usual and curving inwards 

 in front so as to unite before reaching the apex, thus form- 

 ing a regular arch ; the elytra with a sutural stripe from 

 the base to the middle, which in its basal half covers the 

 space from the suture to stria 2, but in the apical half the 

 inner edge gradually diverges outAvards, leaving interval 1 

 bare; another rather shorter, narrower, and oblique stripe 

 starting at the base on interval 6 and ending on interval 5 ; 

 a broad postmedian band, curving forwards (but not widen- 

 ing) at the sides, reaching the lateral margin at about the 

 middle, and continuing to the base as a stripe covering the 

 space between strife 9 and 10 inclusive, and no apical 

 patch ; the lower surface rather deusely clothed with plu- 

 mose scales and yellow powder. 



Head closely and strongly punctate, with a small frontal 

 fovea and with an impressed line round the upper edge of 

 each eye. Rostrum elongate, cylindrical, slightly dilated at 

 the apex, gently curved, and with a downwardly projecting 

 tooth on the submeutum ; with coarse, longitudinally con- 

 fluent ])unctation from the base to the antonnie, which are 

 inserted well beyond the middle, the apical area shiny and 



