APPENDIX 



TO 



THE ZOOLOGIST 



FOR 1851. 



Art. XVIII. — Descriptions of some New Species of British Hymenoptera. By 

 Frederick Smith, Esq., Assistant in the Zoological Department of the 

 British Museum. 



Family — Cheysidid^e. 



Genus — Chrysis, Linnceus. 



Cheysis oenatus. 



Male : length A\ lines. Head golden green, violet-blue at the vertex ; antennas 

 nigro-piceous, the scape golden-green : thorax above rich crimson, intermixed with 

 gold on the prothorax, and on the sides of the mesothovax ; a square patch on the 

 disk golden green ; the post-scutellum and metathorax are also green ; the thorax 

 beneath is blue, dashed with green ; the legs blue, the tibia above having a golden 

 refulgence, the apical joints of the tarsi piceous : the first and second segment of the 

 abdomen is of a rich carmine ; the basal half of the third segment is blue, the apical 

 half golden green ; beneath metallic blue dashed with green : the head and thorax 

 are closely and rather coarsely punctured, but the abdomen very closely and delicately 

 so : the apex of the abdomen is not toothed. 



A single specimen in my own collection. 



This very beautiful species, which I believe to be undescribed, was captured by W. 

 Hewitson, Esq., in the vicinity of Bristol, who kindly presented it to me. This insect 

 might without examination be mistaken for a large variety of bidentata ; it is, how- 

 ever very distinct from that species, the sculpture at once separates it, the abdomen 

 being as finely punctured as in C. neglecta, and the margin of the third segment 

 is entire as in that species ; but independently of the colour of the third segment 

 of the abdomen, the prothorax is proportionably one-third longer than that of C. neg- 

 lecta. It is a valuable addition to our native Fauna. 



IX. APPENDIX. A A 



