DIPLAXiS. 45 



carinse and a pair of small keels in the middle of the posterior 

 margin. Pronotum as broad as long, all margins gently convex ; 

 black, with a narrow yellowish posterior border. Elytra and 

 wings ample, black. Scntellum minute, black. Legs black, ringed 

 with white at the base of the femora, the knees and base of the 

 tarsi. Abdomen slender, black, the tubercles on second and third 

 segments very distinct ; gradually widening towards the apex. 

 Last dorsal segment tumid, but scarcely wider than the abdomen 

 and about as long as broad. Penultimate ventral segment broad at 

 the base but rapidly narrowing towards the apex, which is trun- 

 cate. Porceps with the branches depressed at the base itself and 

 so contiguous there ; then immediately and abruptly attenuate, the 

 branches very slender, elongate and arcuate, enclosing an ellip- 

 tical area. $ unknown, 



S 



Length of body 10-5 mm. 



„ forceps 1*75 „ 



N. Bengal : Purneah District, Bhogaon, 30.ix.0S (0. A. Paiva, 

 Incl. 31 us.). 



Type in the Indian Museum, Calcutta. 



This species, based on a single male, approaches D. lefroyi in 

 the form of the forceps and the last dorsal segment, but is smaller 

 and more slender ; the forceps especially are far less robust. The 

 form of the penultimate ventral segment is perfectly distinctive. 



8. Diplatys bormansi, sp. n. (Figs. 91, 91 a.) 



Diplatys macrocephala, Borm. {nee Beauv.) (88) p. 433, (94) p. 372, 



(OQi) p. 9 (text) (partim). 

 Diplatys nigriceps, Burr, (04) pp. 279 & 284 (partim). 

 Diplatys bormansi, Kirhij, (04) p. 1 (nomen nudum). 



Puscous varied with whitish, not very pubescent. Antennae 

 with 14-16 segments, basal two fuscous, the remainder greyish 

 testaceous. Head of J with transverse suture rather distinct, the 

 tumid frontal part very distinct from the depressed occiput ; 

 postocular ridges shorter than the diameter of the eyes, not very 

 sharp ; median suture fairly distinct, with one or two faint ridges 

 on each side ; in the 5 broader and flatter, the sutures more 

 faint, so that the somewhat tumid part passes gradually into the 

 depressed occiput ; postocular ridges rather more blunt ; black ; the 

 eyes very prominent, especially in the male ; eyes sometimes white. 

 Pronotum with median sulcus faint ; prozona tumid, brownish 

 black, occupying the greater part of the disc ; metazona narrow 

 and flat, white or yellowish, which colour extends forwards along 

 the flat sides to form a crescent ; trapezoidal, nearly rectilinear in 

 the 6 , the sides subconvex in the 5 , angles rounded in both 

 sexes, slightly narrowed posteriorly, about as broad as long, but 

 distinct] V broader in the $ than in the d*. Scutellum transverse 



