380 On new Ruteline Beetles from Indo-China. 
with soft pile, a little darker upon the former and towards 
the end of the latter, and paler at the hind margins of the 
elytra, exactly as in the other species, but the elytra are a 
little more strongly punctured and the pygidium and lower 
surface are rather less thickly pubescent. The legs are 
stouter, the hind tibia in particular distinctly broader, and 
the middle and hind tarsi have the four basal joints shorter 
and the claw-joint longer. The mandibles are curved out- 
wards as well as upwards, forming a crescent when opened, 
and taper more evenly from base to tip. The upper edge 
bears at the base a laminar tooth larger than that of D. bi- 
falcifer, broad at the base, a little curved and acutely pointed. 
Peperonota vitalisi, sp. n. 
(Pl. X. fig. 4.) 
Brunnea, capite areaque scutellari nigris, pronoto femoribusque 
plerumque fulvis, compacta, convexa, corpore supra nudo, subtus 
fulvo-setoso ; 
3, capite grosse punctato-rugoso, a fronte sulco transverso diviso, 
margine antico sat late reflexo, pestice mutico, pronoto polito, 
minute et sparse punctato, parte posteriore medio longe producta ; 
elytris opacis, parte brevi cireumscutellari depressa, nitida, 
grosse punctata, segmento penultimo ventrali postice latitudine 
toto carinato : 
9 , corpore supra nitido, clypeo bidentato, scutello triangulari, haud 
brevi, bene punctato, elytrorum margine laterali post medium 
calloso, pygidio levi, opaco, subtiliter coriaceo. 
Long. 17-24 mm.; lat. 10-13 mm. 
Indo-China: Upper Mekong R., Nam Mat (A. Vitalis de 
Salvaza, April). i 
In 1917 I described a second species of this remarkable 
genus (P. cristata) from Burma. The Indo-Chinese form 
proves to be yet another closely related species. In size, 
colouring, and general appearance it is exactly like P. harring- 
toni, Westwood (from Sikkim, etc.) (Pl. X. fig. 3), but the 
depressed area adjoining the scutellum in the male is shorter, 
as in P. cristata, the clypeus is a little larger, its tip is more 
broadly elevated than in P. harringtoni, the two posterior 
tubercles of that species are entirely absent, leaving only a 
transverse impression, and the forehead behind the latter is 
more rugose. The emargination of the last ventral segment 
in the same sex is less strongly asymmetrical, and the pen- 
