346 Mr. G. C. Champion on the 
pubescent, and sparsely nigro-setose ; testaceous, the head, 
the outer halves of the femora, the antennz (except at the 
base and tip), and sometimes the tibie and tarsi also, infus- 
cate or black, the elytra bluish, bluish green, or fusco-zneous, 
the prothorax in two examples with a small blackish spot 
on each side. Head rather small, the labrum transverse ; 
eyes very large and subcontiguous in g, somewhat narrowly 
separated in ? ; antenne slender, slightly thickened towards 
the apex, moderately long, joint 11 deeply excavate within, 
a little longer than 10. Prothorax longer than broad, 
sinuate at the sides posteriorly, uneven, sparsely punctulate. 
Elytra long, subparallel; densely, rugulosely puuctate, and 
with seriately arranged granules extending down the disc, 
the margins crenulate. 
gd. Intermediate and posterior tibiz feebly curved ; pos- 
terior femora thickened ; anterior tarsal joints 1-3 with a 
comb along their inner edge, 4 small. Genital armature 
(Pl. XI. fig. 20): lateral lobes long ; median lobe stout, 
sinuate, acuminate at tip. 
Length (excl. head) 9-10, breadth 23-3 mm. (¢ 9.) 
Hab. Java [Rouyer: type] (Mus. Brit., Mus. Oxon.), 
Depok (G. EZ. Bryant : 18.iv. 1909) ; Sumatra, Palembang. 
Four males and four females, two of the latter with a 
bimaculate prothorax, are referred to this species, the colour- 
characters only of which are briefly given by Pic in a 
synoptic table. 
24. Idyia femorata, sp. n. 
Elongate, rather broad, robust, shining, finely pubescent, 
and sparsely setose ; testaceous, the head (the labrum ex- 
cepted) black, the elytra nigro-ceruleous. Head somewhat 
produced in front, the labrum transverse, subquadrate ; 
eyes extremely large and narrowly separated in ¢, more 
distant in 2; antennz long, shorter in 9, joints 5-10 
moderately widened, 3-7 elongate, 8-10 gradualiy decreasing 
in Jength, 11 much longer than 10, concave within. Pro- 
thorax about as long as broad, somewhat rounded at the 
sides. Elytra long, finely, densely, rugulosely punctate. 
Terminal dorsal segment entire. 
¢. Anterior tarsal jomts 1-3 with a comb along their 
inner edge ; posterior femora incrassate. Genital armature 
(Pl. XI. fig. 21): lateral lobes long; median lobe stout, drawn 
out into a curved point. 
Var.? The antenne (except at base) and legs (the basal 
