The names of C. pallipes, E. violaceus, H. gloriosa, H. integrum, 

 C. pustulosa, and O. hirsuta, appear in this list, for the first time, as 

 those of British insects, but the necessary sinking of others in Smith's 

 list leaves us with only 21 ascertained species against his 22. There 

 are good grounds for hoping that at least three or four species may 

 still turn up, if collectors of these beautiful insects should ever become 

 more numerous in England. I would strongly urge such not to 

 "card " their specimens, as this frequently conceals important charac- 

 ters, and sometimes makes it quite impossible to determine the species 

 or sex of an insect. I hope that the following Table will render it a 

 task of no great difficulty to determine most British specimens, pro- 

 vided they be so set that the characteristic parts can be properly seen ; 

 and I shall be exceedingly glad to see any specimens which their 

 possessors cannot distinguish by means of it, as it is quite likely that 

 they may belong to species not hitherto recognised in this country. 



SYNOPTIC TABLE OF BRITISH CHRYSIDS. 



1. Abdomen somewhat concave beneath, its dorsum showing three segments onlj 



in either sex — 2. 



Abdomen convex above and below, dorsum showing four segments in $ and five 



in (J Genus Cleptes. 



Prothorax with a transverse punctured line near and parallel to its basal edge 



pallipes. 



Prothorax without transverse basal line as above nitidula. 



2. Post-scutellum not pi-oduced into a long spine — 3. 



Post-scutellum produced into a long spine. Abdomen with deep triangular 

 incision at apex NoTOZus Pa««en. 



3. Abdomen elongate, a transverse row of fossulets near its apex, beyond which 



row the dorsal surface of the segment drops to a lower level . . 



Genus Chrysis — 12. 



Abdomen ovate or nearly round ; no fossulets on apical segment, which is convex 



to its apex — 4. 



4. Abdomen not incised at apex — 7- 



Abdomen distinctly incised at apex Genus Elampus — 5. 



5. Mesonotum very smooth and shining ceneits. 



Mesonotum punctured, not smooth and shining — 6. 



6. Apical incision long, triangular or lancet-shaped auratus. 



Apical incision wide but very short, inconspicuous violaceus. 



7. Prothorax distinctly longer than mesonotum. Upper basal nervure in superior 



wing hardly incurved Genus Hedychrum — 11. 



Prothorax not longer than mesonotum. Upper basal nervure bent sharply in- 

 wards, forming a distinct angle — 8. 



8. Radial cell open at apex. Claws of tarsi with several teeth along the lower edge, 



a large one close to apex Holopyga ^/ci;-io«a. 



Radial cell closed at apex. Claws of tarsi with one small tooth only on lower 

 ed^e, at some distance from the apex Genus Hedyciirtdiu.m— 9. 



