DIPLATTS. 49 



posteriorly into a short triangular lobe, so that the outline forms 

 a W ; in the 2 narrow, triangular. Forceps with the branches 

 very short, rather broad, depressed, straight and tapering in the d ', 

 in the $ shghtly longer, more slender. 



c? 2 



Length of body 6-75 mm. 6 mm. 



„ forceps 0-5 „ 0-75 „ 



Ceylon : 'Peradeniysi (Green, coll. Bun-), Madulsima (Fletcher)- 



Type in the author's collection. 



In colour and in the gradually widening abdomen, this species 

 resembles D. greeni and D. bormansi, but is smaller than either and 

 more slender ; it differs from the former in the short depressed 

 forceps, from the latter in the somewhat different pronotuin and 

 shorter and broader forceps. It differs from both in the double 

 triangular emargination of the penultimate ventral segment of the 

 male, thus approaching D. gerstcecl-eri, which it also resembles in 

 form and build, but the middle triangular lobe between the two 

 excisions is much broader and less acute in this species than in 

 D. r/erst(ecJceri. 



It is dedicated to Mr. Ernest Green. 



11. Diplatys siva, Burr* 



Diplatys siva, Burr, (04) pp. 278 & 283 ; (06) p. 387 ; (O?^) p. 508. 



Large; glabrous ; reddish fuscous. Antennae with 15 segments, 

 typical, reddish fuscous. Head in the c? not very tumid on the 

 f rons, nor very depressed on the occiput ; transverse suture fairly 

 distinct and postocular ridges obsolete ; in the 5 the irons is still 

 less tumid, the transverse suture marked by a vague shallow 

 depression, and occiput normal. Pronotum : c? sub(iuadrate, convex 

 anteriorly, sides parallel and posterior margin gently rounded ; $ 

 slightly broader and truncate posteriorly ; prozona tumid, ample ; 

 metazona flat and narrow in both sexes and median suture 

 distinct. Scutellum smaller in d" than in 2 . Elytra and wings 

 ample, smooth, fulvous brown, with a dense short yellowish 

 pubescence. Legs brownish, long and slender ; posterior femora 

 cannulate. Abdomen slender, not broadened postei'iorly. Last 

 dorsal segment of the cJ rectangular, short, transverse, not broader 

 than the abdomen, smooth, posterior margin oblique at sides,, 

 truncate in the middle ; in the 2 sloping and strongly angustate. 

 Penultimate ventral segment of the d ample, subquadrate, posterior 

 margin with three deep triangular emarginations, forming thus 

 two triangular lobes in the middle ; in the 2 narrow and rounded. 

 Eorceps : in the cS with the branches rather depressed, rounded 

 above, flat beneath, quite straight and unarmed, conical and tapering ; 

 in the 2 shorter, stouter and conical. 



