Malacodenn Qenern Prionoccius and IJgia. 355 



densely, finely punctate, witli rows of sniull scattered granules 

 on the disc. Posterior femora nio<leratcly incrassate ; pos- 

 terior tibiae simply arcuate, of equal width to the apex ; 

 anterior tarsal joints 1-3 with a hlack comb along their 

 inner edge ; terminal dorsal segment broadly snbtrnncate at 

 ti|). Genital armature (IM. XII. fig. 31 ): lateral lobes mode- 

 rately long, curved inwards at the tip as seen fn^u above; 

 median lobe drawn out into an almost straight, blunt point. 



Length (e.\cl. hea<l) 8, breadth 2j mm. 



Hab. Ceylox, Hapulahani, Haldummulle (Mus. Brit.). 



Described from a single male, the only other si)ecimens 

 before me from the same locality, ? ? , being certainly 

 referable to the closely allied /. dinie/ancij Walk., the J of 

 w hieh has slender posterior femora, almost straight posterior 

 tibiie, and a different genital armature. 



37. Idi/ia dichroa, sp. n. 



$ . Elongate, shining, finely pubescent, and sparsely 

 setose; luteous, the head (labrum included) black, the 

 apical half of the elytra uigro-ca.'ruleous. Head slightly 

 produced in front, narrow, the labrum transverse, un- 

 impressed ; eyes very large, subcontiguous ; antennae long, 

 slender, filiform, joint 11 elongate, feebly sinuate within, 

 about "2^ times the length of 10. Prothorax a little uidcr 

 than the head, oblong-sub(|uadr;ite, slightly sinuate at the 

 sides posteriorly ; sparsely, very finely punctate. Elytra 

 long, about twice as wide as the prothorax, densely, finely 

 punctate, the seriately-arranged granules on the disc some- 

 what conspicuous on the apical half. 



Length (excl. head) 10, breadth 3] mm. 



Hub. Borneo, Sarawak {A. li. Wallace^ in Mus. Oxon.). 



One female, in good condition. This species agrees with 

 the description of I. lo7iyissima, Pic, horn Sumatra, in having 

 an unusually elongate eleventh autenual joint, differing from 

 it in the entirely j)ale limbs, and in the shorter, relatively 

 broader elytra, with much more extended bluish-black apical 

 patch. J. semitecta, from Ceylon, is somewhat similarly 

 coloured. 



38. Jd</ia semitecta, sp. n. 



cJ . Elongate, narrow, moderately shining, finely j-ubes- 

 ceut (the setae abraded) ; testaceous, the liead (the labrum 

 excepted) and nearly the apical half of the elytra black, the 

 antennal joints 5-11 nigro-piecous. Head rather long, the 



