Malacoderm Genera Prionoceius and Idgia. vJG7 



55. Idyia a triceps, sp. n. 



Elongate, narrow, sliininfj, finely i)ubescent, and sparsely 

 fiisco-setose ; testaceous, the head, and a small dull sj)<)t at 

 the ti[) of the elytra, black, the anteniue (joint 11 excepted), 

 tibiie, and tarsi infuseate. Head rather long, the lal)ruui 

 transverse, small ; eyes very large, contiguous in ($ , narrowly 

 separated in ? ; antennje long, slender, joint 11 hollowed 

 within, twice as long as 10. Protliorax longer than broad, 

 about as wide as the head, sinuate at the sides posteriorly. 

 Elytra elongate, densely, finely punctate. 



(^ . Anterior tarsal joints with a comb along their inner 

 edge ; sixth ventral segment triangularly emarginate. Genital 

 armature (PI. XII. fig. 45): lateral lobes comparatively short, 

 broad, sinuously curved as seen from above, hollowed on their 

 lower edge before the tip ; median lobe feebly curved, drawn 

 out into a long, strongly arcuate point at the apex. 



Length (excl. head), 7-7h, breadth 2-2^ mm. (c5^ ? .) 



Hab. Burma [Boivriny). 



Two males and one female. Separable from the allied 

 forms with partly infuscate limbs, small apical spot, and 

 long terminal joint to the antennte, by the clear testaceous 

 femor.i, black liead, and (J -armature. The elytra are much 

 smoother than in /. indicolu from the Nilgiris, and have a 

 less developed apical patch. Prionocerus {Deromma^ seiifrous, 

 Kirsch (1875), from Malacca, an insect not identified by 

 myself, must be nearly allied to the present species. 



56. Idffia varipes, sp. n. 



(^ . Elongate, very narrow, shining, finely pube.«cent, and 

 sparsely setose; testaceous, the head, anteunte (joint 11 

 excepted), and tips of the elytra, the femora along their upper 

 edge, and the tibite, and tarsi (the tips excepted), infuscate or 

 black. Head slightly produced anteriorly, the labrum tra[)e- 

 zoidal, tiiangulaily d( i)ressed in the middle; eyes very large, 

 sul'Conti^uous ; antcnuic long, slightly widening outwards, 

 joints 3-10 elongate, 4 shorter than 3 or 5, 11 curved, a 

 little longer than 10. Protliorax longer than broad, as wide 

 as the head, constricted jjosteriorly. Elytra long, narrow, 

 snbpaiallel, densely, finely punctate. 



j . Anterior tarsal joints 1-3 with a narrow comb along 

 their inner edge ; .sixth ventral .segment triangularly emar- 

 ginate. Genital armature (PI. XII. fig. 4()) : lateral lobes 

 rather short, almost straight, blunt at tip. closely ciliate 



