APPENDIX. 95 



oviduct exerted ; its sheaths fulvous, a little shorter than the abdo- 

 men, black along one-third of their length from the base ; legs ful- 

 vous ; tarsi pale yellow ; middle-legs long and dilated as usual ; 

 wings rather small, limpid from the base till near the middle, 

 thence fuscous till near the tips ; nervures piceous ; humerus much 

 less than half the length of the wing ; ulna as long as the hume- 

 rus ; radius not more than one-fourth of the length of the ulna ; 

 cubitus as long as the radius ; stigma very small, emitting a short 

 branch. 



! 



Encyrtus Polylaus, Fern. Viridis, abdomine cupreo, antennis 

 fuscis, metapedibus fuscis aut piceis, alls limpidis. (Corp. 

 long. lin. f; alar. lin. lj.) 



Body rather long ; head and thorax convex, bright-green, 

 finely squameous ; head transverse, as broad as the thorax ; vertex 

 rather broad ; front not impressed ; eyes of moderate size, not pro- 

 minent ; ocelli disposed in a triangle on the vertex ; antennae slen- 

 der, fuscous,subclavate, rather longer than the thorax ; first joint 

 long, slender, yellow ; second piceous, cyathiform ; third and fol- 

 lowing joints to the club successively increasing in breadth ; club 

 fusiform ; thorax elliptical ; prothorax transverse, short, rounded 

 in front, straight behind ; scutum of the mesothorax large, trans- 

 verse ; parapsides united to the scutum ; axillae large, complete ; 

 scutellum large, obconic ; metathorax, propodeon, and podeon very 

 short, declining; abdomen cupreous, obconic, depressed, smooth, 

 shining, narrower and much shorter than the thorax ; metapodeon 

 bright-green, of moderate size ; octoon and following segments 

 short; legs fulvous, stout; middle-thighs and middle-tibiae di- 

 lated, and the former armed with long spines ; hind thighs and 

 hind tibiae slightly fuscous ; wings limpid ; nervures fulvous ; hu- 

 merus much less than half the length of the wing ; ulna and 

 radius extremely short; cubitus longer than the radius; stigma 

 very small. 



a. England. Presented by F. Walker, Esq. 



Encyrtus, Nasidius, Walker, MSS. Fern. Ater, abdomine 

 ceneo, antennis fuscis aut piceis, pedibus fulvis aut piceis, 

 alls limpidis. (Corp. long, lin J-; alar. lin. f.) 



Body stout, pubescent : head and thorax slightly convex, deep- 

 black, dull, squameous ; head transverse, very short, not narrower 

 than the thorax ; vertex broad; front impressed, abruptly declining; 

 eyes of moderate size, not prominent; ocelli near together in a tri- 

 angle on the vertex ; antennae clavate, fuscous, as long as the tho- 

 rax ; first joint piceous, long, slender ; second piceous, long-cya- 

 thiform ; third and following joints to the eighth successively in- 

 creasing in breadth ; club fusiform, broader than the eighth joint 



