350 Mr. G. C. Champion on the : 
elytra in ? furnished with a long, slender, curved hook, or 
a shorter deutiform process, at the sutural angle (Pl. XII. 
fig. 50). 
Length (excl. head) 7-8, breadth 22-24 mm. 
Hab. Borneo, Kuching in Sarawak (J. H. A. Lewis: 3 2), 
Quop in W. Sarawak (G. S. Bryant: iii., iv. 1914: 92), 
Kina Balu (Mus. Brit.: 2), Sanga Sanga, Moorjawa 
(HD densenis 12). 
Two males and five females. The ? found by Mr. Jensen 
in E. Borneo has a shorter and straighter tooth at the 
sutural angle than in the other specimens of that sex before 
me, J. viridipennis, Pic, 2, having the elytra somewhat 
similarly armed. The Kuching males were not detected 
at the Museum till after the Plates accompanying this paper 
had been drawn, and the genital armature therefore has not 
been dissected for figuring; the apices of the elytra of ¢, 
however, are shown on the second Plate (Pl. XII. fig. 50). 
30. Idgia javana, sp. n. 
g. Very like J. ceruleiventris and I. uncigera; nigro- 
fuscous, the palpi [antenne broken] and prothorax testa- 
ceous, the legs reddish brown, the head grooved between the 
eyes, the latter narrowly separated, the elytra less elon- 
gate, the terminal ventral segment convex, conical, narrow, 
polished. Genital armature (Pl. XII. fig. 26) : lateral lobes 
broad, spoon-shaped at tip as seen from beneath, narrowed 
distally as seen in profile; median lobe drawn out into a long, 
rather narrow, upwardly curved point. 
Length (excl. head) 63, breadth 2 mm. 
Hab, Java (Mus. Brit.). 
One male, with genital armature so different from that 
of J. ceruleiventris that a name is required for the Javan 
insect, which may be referable to J. sumatrensis or its var. 
I. kannegieteri *, Pic, from Sumatra, Java, and Borneo. The 
only tangible characters given for J. sumatrensis are the 
small size (length 9 mm.) and the very narrow, infuscate, 
non-metallic elytra, the type having a maculate prothorax. 
It is highly probable that more than one species was included 
by the author under the latter name. 
31. [dgia marginata, sp. n. 
Elongate, narrow,and subparallel (¢), broader ( ? ), mode- 
rately shining, finely cinereo-pubescent, and sparsely nigro- 
* ‘L’Echange,’ xxii. p. 43 (1906) ; op. cit. xxvi. p. 75 (1910). 
