DIPLATYS. 51 



median sulcus. Forceps with the branches not quite contiguous 

 at the base, trigonal, very short, then suddenly and notably 

 attenuate, the apical half very slender, cylindrical and tapering, 

 gently incurved, thus enclosing an elongate elliptical area ; under 

 surface flattened. 



S 



Length of body 8-5 mm. 



„ forceps 1 „ 



Ceylon: Puuduluoya (Brit. Mas., coll. Bwr), Peradeniya (coll. 

 Burr). 



l^ype in the author's collection. 



This species was formerly confused with B. hormansi. Burr, 

 from which it differs in the form of the penultimate ventral 

 segment of the male, which is gently sinuate, having in D. hormansi 

 a central round emargination. In D. greeni too, the forceps are 

 stout at the base, and convex, cyliudro-conical, quickly attenuate, 

 and slightly arcuate towards the apex ; in D. hormansi they are 

 trigono-conical and almost straight. D. greeni as a rule has no 

 white markings, which are commonly present in D. hormansi. 



13. Diplatys rufescens, Kirhg.* (Fig. 7,5.) 



Oylhidrogaster rufescens, Kirhy, (96) p. 524, pi. 20, fig. 2. 

 Diplatys rufescens, Kirhy ^ (04) p. 2 ; Burr^ (0"') P- 508. 



Antennae yellowish, typical. Head with frons tumid and occiput 

 depressed, postocular keels sharp ; chocolate-brown. Pronotum 

 suboval, slightly longer than wide, well-rounded in front, the sides 

 convex and posterior margin truncate ; chocolate-bro-vn in colour 

 with an indistinct darker shade outlining the somewhat tumid 

 prozona. Scutellum wide and pale. Elytra reddish chocolate-brown. 

 Wings whitish, shaded with brown. Legs yellowisli, the femora 

 shaded with brown. Abdomen clear brick-red, siiiooth, decidedly 

 darker at the apex. Last dorsal segment decidedly wider than 

 the abdomen, smooth, nearly square, but not dilated. Penultimate 

 ventral segment of S ample, quadrate, feebly depressed in middle 

 near hinder margin. Forceps straight, contiguous, conical, tri- 

 gonal, the inner margin serrulate, apices slightly hooked. 5 un- 

 known. 



6 



Length of body 12 mm. 



„ forceps ........ 1 „ 



Sikkim: Darjihng (7?»-i^. J/«s., Pcf/'ts J1/?(S.); ToNKijf. 

 Tijpc in the British Museum. 



This species was wrongly considered by de Bormans as synony- 

 mous with B. cjcrstaickeri, from which it is quite distinct. 



EL' 



