50 Iklr. C. G. Lamb on Exotic Cliloropiclas. 



the cnls of 2 and 3, but docs not extend to the end of wing 

 or down to vein 3. 



llnltercs with ivory-wliite lie?ds. 



Lojr^ mainly oranp,e, all the coxffi black and all femora 

 broadiy ringed witli black. 



AhdonuMi : dorsum fattened, a little lonp^er than broad, 

 and ta|)ering in outline from tlie ba-e ; it is of a quite unique 

 colour, being all suffused with a drnse milky-blue glaze; 

 the last segment is considerably longer than tlie others; 

 beneath, the abdomen is orange ; the last segment, which is 

 bent under, is all shining black. 



Size about 1^ mm. 



Cum. Coll., i'eradeniya, Ceylon (J. C. F. Fryer). 



Ops, Becker. 

 O. madncjuscariensis, End. 



A specimen in Cam. Coll., Durban (F. M.), differs from 

 the ordinary form only in the femora being somewhat 

 darkened. 



0. callichroma, Loew. 



There are two specimens of this species — the one in Bur. 

 Coll. from ISyasaland, in Mhich the abdominal cross-bands 

 are rather weak and indefinite. The other is a very bright 

 and shining form, which miglit be taken as a subspecies. 

 It is a little la-gcr, and the '•triangle'' covering nearly all 

 the frons is very deep excessively shining black instead of 

 being shiniiig brown. The abdominal markings are also 

 very clear atul distinct ; they consist of the following on the 

 vdlow background : — 1st seiiment with very short central 

 bar ; 2nd arched bar with the springings situated basally ; 

 3rd broad, only leaving narrow hind nuugin yellow; 4th 

 median, of halt to;al breadth of segment; the pointed 5th 

 has a narrow basal band. 



A specimen iu Cam. Coll., Durban (JP. M.). 



Ops nigra, sp. n. 



The whole oF head and thorax entirely shining black, 

 except for the orange antenna} and blight yellow scutellum. 

 The vertical triangle does not cover the whole of the fi'ons, 

 but leaves eye-margins narrowly widening right from the 

 vertex. 



Wings quite normal, clear. 



