inhabiting the Arctic Region. 409 



Omphale iEtius, Entedon iEtius, Monog. Chal. i. 78. Alten, Fin- 

 mark. 



Euderus Amphis, Entedon Amphis, Monog. Chal. i. 106. Alten, 

 Finmark. 



Tetrastichus Tyrtieus, Cirrospilus Tyrtieus, Monog. Chal. i. 306. 

 Alten and Hammerfest, Finmark. 



Tetrastichus Faucula, Cirrospilus Faucula, Monog. Chal. i. 310. 

 Alten, Finmark. 



Tetrastichus Lachares, Cirrospilus Lachares, Monog. Chal. i. 309. 

 Alten, Finmark. 



Tetrastichus Phineus, Cirrospilus Phineus, Monog. Chal. i. 303. 

 Alten, Finmark. 



Tetrastichus Idothea, fern. Cyaneus ceneo et viridi varius, abdomine 

 cupreo aut purpureo, antennis nigris, pedibus fulvis piceo aut nigro 

 cinctis, alls limpidis. (Corp. long. lin. | ; alar. lin. 1^.) 



Body slender : head and thorax convex, finely squameous : head 

 transverse, blue, as broad as the thorax ; vertex broad, aeneous-green ; 

 front impressed : eyes of moderate size, not prominent : antennae 

 black, slender, slightly setaceous, as long as the thorax ; first joint 

 long, slender, slightly curved ; second cyathiform ; fourth and follow- 

 ing joints successively narrower : thorax elliptical: prothorax trans- 

 verse, very short : scutum of the mesothorax broad, blue ; sutures of 

 the parapsides distinct, approaching each other ; scutellum obconic, 

 aeneous-green ; axillae not complete : metathorax very short : propo- 

 deon green, obconic, declining, of moderate size : podeon short : 

 abdomen oval, cupreous, depressed above, slightly keeled beneath, 

 rather shorter than the thorax ; metapodeon green, of moderate size ; 

 octoon and following segments transverse, short : legs fulvous, 

 slender ; coxae green ; a broad piceous stripe across each thigh and 

 tibia ; tips of the tarsi piceous : wings limpid ; nervures fulvous ; ulna 

 longer than the humerus ; radius very short ; cubitus rather longer 

 than the radius ; stigma very small. 



Var. |3. Thighs black. 



Var. y. Thighs black : abdomen purple, its base aeneous. 



Alten, Finmark. 



Diglyphus Chabrias, Cirrospilus Chabrias, Ann. Nat. Hist. i. 451. 

 Alten, Finmark. 



Aprostocetus Catius, Cirrospilus Catius, Monog. Chal. i. 323. Al- 

 ten and Hammerfest, Finmark. 



Aprostocetus Anyta, Cirrospilus Anyta, Ann. Nat. Hist. iii. 417. 

 Hammerfest, Finmark. 



Dicladocerus Westwoodii, Eulophus Westwoodii, Monog. Chal. i. 

 157. Hammerfest, Finmark. 



Eulophus Eucrate, Monog. Chal. i. 176. Hammerfest, Finmark. 



Eulophus Idrieus, fern. Viridis, abdominis disco purpureo, antennis 



nigris, pedibus viridibus, tarsis flavis , alis limpidis. (Corp. long. 



lin. 1 ; alar. lin. If.) 



Body slender, green, shining : head and thorax convex, finely 



squameous : head transverse, not quite so broad as the thorax ; ver- 



