inhabiting the Arctic Region. 337 



than the thorax ; metapodeon slightly concave, occupying more than 

 one-third of the dorsum ; octoon not half the length of the metaj)o- 

 deon ; ennaton shorter than the octoon ; decaton still shorter ; pro- 

 telum short ; paratelura and telum very short : legs fulvous ; thighs 

 green, their tips fulvous ; tips of the tarsi fuscous. 

 Alten. 



Lamprotatus Icelos, mas. Viridis, ahdomine eetieo, antennis piceis, 

 pedibus fulvis, fcmoribus viridibiis, mesotibiis apice et mesotarsis 

 fuscis, alis limpidis. Fern. .'' Antennis nigris, ahdomine viridi, 

 femoribus fulvis basi fuscis. (Corp. long. lin. 1 ; alar. lin. 2.) 

 Male. — Head and thorax green, convex, finely squameous : head 

 a little hroader than the thorax : antennas j)iceous, filiform, as long 

 as the thorax ; first joint long, stout ; second cyathiform ; third and 

 fourth very minute ; fifth and following joints long, linear, suc- 

 cessively decreasing in length ; club fusiform, twice the length of 

 the tenth joint : thorax eUiptical : prothorax transverse, rounded in 

 front, its breadth much more than twice its length : scutum of the 

 mesothorax large ; sutures of the parapsides very distinct ; axilla; 

 large, triangular, approaching each other ; scutellum rhomboidal, 

 having a transverse suture near its hind border : metathorax trans- 

 verse, very short : propodeon large, obconic, decumbent : podeon 

 stout, short : abdomen Peneous, oval, flat, smooth, shining, shorter 

 than the thorax ; metapodeon large ; octoon, ennaton, decaton and 

 protelum of moderate size ; paratelum and telum very short : legs 

 fulvous ; coxa: and thighs green ; tips of the tarsi fuscous ; tarsi and 

 tips of the tibiffi of the middle legs piceous : wings limpid ; ner- 

 vures piceous ; humerus much less than half the length of the wing ; 

 ulna rather more than half the length of the humerus ; radius much 

 longer than the ulna ; cubitus much shorter than the ulna ; stigma 

 large, emitting a short branch. 



Fetnule ? — Antennae black, clavate, as long as the thorax ; first 

 joint long, slender, green ; second cyathiform ; third and fourth very 

 minute ; fifth and following joints to the tenth successively shorter 

 and broader ; club elliptical, broader than the tenth joint, and more 

 than twice its length : abdomen oval, green, convex, keeled beneath, 

 much shorter than the thorax ; metapodeon large ; octoon and fol- 

 lowing segments short : legs fulvous ; coxae green ; thighs fuscous 

 towards the base ; tarsi yellow, their tips fuscous. 

 Alten. 



Seladerma Mazares, mas et fem. Viride, cupreo varium, antennis 



nigris, pedibus fulvis, femoribus basi viridibus, alis limpidis. 



(Corp. long. lin. 1| — 2 ; alar. lin. 2| — 3.) 



Male. — Body slender : head and thorax convex, bright green, 



finely squameous : head large, broader than the thorax : antennae 



black, stout, filiform, longer than the thorax ; first joint long, sub- 



clavate ; second cyathiform ; third and fourth very minute ; fifth and 



following joints to the tenth long, linear, successively decreasing in 



length : thorax fusiform : prothorax transverse, nan-ower in front ; 



