92 HYMENOPTERA. , 



Sec. \, A. Abdomen tridentate. 



6. Chrysis cyanea, Linn. Faun. Suec. p. 414, No. 1667; 



Syst. Nat. i. 948, 5. 

 Fabr. Ent. Syst. ii. 243, 20; Syst. 



Piez. p. 176,29. 

 Don. Brit. Ins. vii. pi. 235. 

 Latr. Hist. Nat. xiii. 238, 6. 

 St. Farg. Ann. Muse, vii. 128, 22. 

 Panz. Faun. Germ. 51, 10. 

 Schrank, Faun. Boic. ii. 2, 345. 

 Spin. Ins. Leg. i. 65, 12. 

 Shuck. Mon. Chrys. Ent. Mag. iv. 



167, 8. 

 Dahlb. Hym. Eur. ii. 188, 102. 

 Wesm. Bull. Acad. Roy. des Sc. 

 Brux. vi. 177, 8. 

 Length 2J — 3| lines. Dark blue, varied with bright 

 metallic green, occasionally splashed with gold ; the apical 

 segment of the abdomen, the margins of the other segments 

 usually bright green ; the head and thorax deeply and closely 

 punctured; the abdomen finely so, and with a deep central 

 fossulet in the middle of its basal margin ; legs tinted with 

 metallic green, the tarsi pitchy; the apex of the abdomen tri- 

 dentate, sometimes tri-angulate ; wings hyaline, the nervures 

 brown, the costal nervure and the tegulae nearly black. 



This insect is abundant everywhere on old palings, trees, 

 outhouses, &c. ; it is parasitic upon several species of wood- 

 boring bees, and wasps. 



Sect. II. The marginal cell complete, the abdomen rtot 

 toothed at the apex. 



7. Chrysis Austriaca, Fabr. Syst. Piez. p. 173, 15. 



St. Farg. Ann. du Muse, vii. 128, 

 28. 



