of the Ihjmenopterous genera Cleptes, &,-c. 4G9 



and ■VYalckenaer says, also upon Cerceris ornata; I liave 

 bred It m large numbers from bramble sticks containino- 

 cells of Cemonus unicolor, and I have seen it repeatedl? 

 entering the burro^YS of Megacliile argentata. 



ilie species of the genus Clinjsis, judging from the 

 amount of knowledge which we at present possess, are 

 principally parasitic on species of VespidcB, and some by 

 no means conhne their attacks to one insect; Chrysis 

 zgmta IS known to attack the larya3 of several wasps 

 as well as of bees; Walckenaer found it parasitic 

 upon Ilalictu I have bred it from nests of O^mia 

 hicornis; Prof. Westwood bred it from the nest of 

 the solitary wasp, Odynerus Antilope, and Mr. Chapman 

 reared it from that of Odgnerus spinipes. I once ob- 

 tained many individuals from a nest of Vespa riifa. 

 Chrijsis cyunea is the parasite of Chelostoma forisomne, 

 and Chrgsis bicolor is the parasite of Osmia pariefina; 

 Zetterstedt bred the latter Chrgsis from nests of Osmia 

 nigriventris. _ Chrgsis neglecfa and C. bidentata are well- 

 known parasites of Odgnerus sjnnipes, details of the 

 economy of these two Chrg sides, and their mode of 

 attack and development, are given by Mr. T. Algernon 

 Chapman in the sixth volume of the Entomologist's 

 Monthly Magazine. 



1. Stilhum splendidum* 



Chrgsis splendida, Fabr. Syst. Entom. p. 357, ? ; Ent. 

 Syst. ii. p. 238 ; Syst. Piez. p. 170. 



Female. — Length 8 — 8^ lines. Head usually bright 

 green, sometimes blr? on the vertex; the three basal 

 joints of the antennje green, occasionally blue. Thorax 

 blue ; the prothorax frequently tinted with green at the 

 sides, also occasionally narrowly so at its posterior margin ; 

 the mesothorax Avith a broad, longitudinal, lateral, green 

 stripe ; the posterior angles of the metathorax frequently 

 more or less green ; the legs green ; wings fusco-hyalinc, 

 the nervures black. Abdomen blue, with usually a tint 

 of green at the side 3 of the first segment; the second 

 segment frequently green posteriorly ; beneath, with 

 changeable tints of blue and green. The head and thorax 

 strongly and closely punctured ; the abdomen more finely 

 and not so closely punctured ; a central, nan'ow, impunc- 

 tate line on the second segment ; the apical margin of the 

 third seo-ment armed with four acute teeth. 



