HYMENOPTERA NEW TO CEYLON. 12i 



medium segment produced shai-ply into a waved ridge, the trun- 

 cation shining and punctured, not striate. The yellow markings in 

 the sinus of the eyes and behind the latter, the hnes on the pronotum, 

 tegulse, mesopleurse, the marginal lines of all segments except the 

 second, and the lateral spots and markings on legs, median segment, 

 and ventral segment absent. It appears to me that the above 

 differences are sufficient to separate this from 0. fistulosus. 



*Lahus campanulatus. ? n. sp. Figs. 10, 11, 12, 13. 

 Col. Mus. No. 226. 



This species may at once be distinguished from L. hu7nbertianus 

 by its larger and heavier build and by the much larger and distinct 

 coarse punctures covering the whole. 



Head, thorax, petiole, and basal segment of abdomen very 

 coarsely and evenly punctured, the punctures on the head finer 

 and closer. Olypeus convex deeply emarginate. The pronotum in 

 front laterally toothed. Median segment deeply incised forming a 

 hollow for the petiole, the lateral margins of the incision with two 

 teeth. The petiole broad a.nd heavy, abruptly truncate at its base 

 with a raised ridge at the verge of the truncation above. Basal 

 segment of the abdomen long and campanulate. Black and glossy ; 

 the head with obscure silvery pile. The anterior half of the clypeus, 

 the mandibles, the scape beneath, a minute spot between the bases 

 of the antennae, the apical margins of the petiole and first segment, 

 yellow. 



*Ghrysis spectrum, n. sp.. Fig. 3. Col. Mus. No. 227. 



Division C, Bingham's Key A, 6^ b^, a^ — close to C. singalensis. 



Metalhc green with golden effulgence. The region of the ocelli, 

 the medial areas of the mesonotum, scutellum, first, second, and 

 third segments of the abdomen above, and the bases of the last two, 

 purplish blue. The blue markings on the head and thorax centrally 

 touched with black. Sides of the mesonotum golden red with fine 

 longitudinal carinse. First, second, and third segments of the abdo- 

 men, laterally, with bright cupreous golden spots extending in a band 

 along the posterior margins of the second segment ; the spot on this 

 segment largest and brightest and of deep ruby red. Pronotum 

 touched with golden red. Antennae black, about as long as pro- and 

 mesonotum united, first two joints of the flagellum touched with 

 golden brown above ; the scape in front, and legs more golden than 

 gi-een; the tarsi brown. Pilosity, short, erect, and whitish, fairly 

 abundant ; facial hollow finely transversely striate, with rather long 

 whitish recumbent hairs on the sides; head, thorax, and abdomen 

 densely and somewhat evenly punctured, finer and closer on the 

 second and third segments. Head, from the front, about twice as 

 broad as long, widely emarginate posteriorly ; eyes large, prominent ; 

 clypeus broad, very narrow, sub-porrect and. emarginate in the 

 's 7(8)08 



