98 Mr. G. Meade- Waldo on 



from the middle of the former to the middle of the latter), 

 the elytra with a common, rounded, smaller annulus on the 

 apical declivity, the prothorax with an oblique stripe on each 

 side anteriorly (as seen from above) and the whole of the 

 flanks (a large spot in the middle excepted), the head around 

 the eyes, and the base of the rostrum, thickly clothed with 

 minute, fulvous or brownish-cinereous, hair-like scales, the 

 under surface and legs sparsely set with slightly longer 

 similarly-coloured scales. Head densely punctate; eyes 

 very large, well separated in both sexes ; rostrum very stout, 

 curved, moderately long, finely punctured, smooth at the tip. 

 Prothorax a little broader than long, gradually narrowing 

 from the base, opaque, closely, minutely punctate, and some- 

 times obsoletely carinate towards the apex. Scutellum 

 oblong, sulcate. Elytra cuneiform, foveato-striate, the fovese 

 decreasing in size towards the apex ; the interstices convex, 

 1-4 for about two- thirds of their length set with scattered, 

 small, smooth tubercles and then becoming flat on the apical 

 declivity ; the annulate portions of the surface depressed, the 

 humeri rounded. Femora sharply unidentate. Pygidium 

 broadly exposed beneath in ^ , very narrowly so in ? . 

 Length 19-20, breadth 8|-8| millim. (c? ? .) 

 Hab. Costa Rica {Mm. Dresden) ; Ecuador, San Javier 

 and Lita (coll. Fry, in Mus. Brit.). 



Described from four specimens from Ecuador. Dr. Heller, 

 of the Dresden Museum, has also sent me an example of the 

 same species, labelled as from Costa Rica, for determination, 

 the habitat of which seemed to me to be doubtful at the 

 time, and the insect was therefore omitted from the enume- 

 ration of the Central-American Cratosomini. There is, how- 

 ever, no reason to think that a mistake had been made in 

 labelling, C. sextuberculatus having a similar geographical 

 distribution. C. biannulatus should follow C. aspersus in 

 the arrangement of the Central-American forms. 



X. — Neiv Species of Diploptera in the Collection of the 

 British Museum. By Geoffrey Meade-Waldo, B.A. 



(Published "by permission of the Trustees of the British Museum.) 



Part III. 



In the present paper are contained descriptions of some new 

 species of the family Vespidte from various localities. 



The occurrence of two species of Purapolybia in the 



