Mr. Walker on Chalcidites. 161 



Pteromalus Orinus, fern. Viridis, abdomine cupreo basi viridi, antennis fuscis 



pedibus fulvis, femoribus viridibus, alis limpidis. 

 Corp. long. lin. | ; alar. lin. 1^. 



Head and thorax green : head a little broader than the thorax : antennae slender, subclavate, 

 fuscous, rather longer than the thorax ; first joint fulvous ; club conical, twice the 

 length of the tenth joint : thorax oval : prothorax very short : scutum of the meso- 

 thorax almost flat ; sutures of the parapsides indistinct ; scutellum subrhomboidal, 

 having a slight trace of a transverse suture : propodeon of moderate size, obconical, 

 declining, finely squameous : podeon very short : abdomen elliptical, cupreous, shining, 

 depressed above, slightly keeled beneath, green towards the base, narrower but not 

 longer than the thorax ; metapodeon of moderate length ; octoon and following seg- 

 ments shorter: legs pale fulvous; coxEe and thighs green, tips of the latter fulvous; 

 tips of the tarsi fuscous : wings limpid ; nervures fulvous ; humerus twice the length 

 of the ulna; radius longer than the ulna; cubitus rather shorter than the radius; 

 stigma very small. 



Found near London. 



Allied to Pt. latifrons (Ent. Mag. ii. 501). 



ScLADERMA, Walker. 



ScLADERMA Lalage, fern. Viridis, abdomine cyaneo, antennis nigris, pedibus 



fulvis, femoribus viridibus, tibiis tarsisque apice fuscis, alis sublimpidis. 

 Corp. long. lin. 1| ; alar. lin. 2^. 



Head and thorax bright green, convex, finely squameous : head a little broader than the 

 thorax : antennae subclavate, black, rather longer than the thorax ; first joint long, 

 slender, green ; second long-cyathiform ; third and fourth very minute ; fifth and fol- 

 lowing joints to the tenth successively decreasing in length; club fusiform, much 

 longer than the tenth joint : thorax elliptical : prothorax rather short, narrower in 

 front : scutum of the mesothorax long ; sutures of the parapsides very distinct ; scu- 

 tellum subrhomboidal, bluish-green, having a distinct transverse suture near its tip ; 

 axillae large, nearly meeting between the scutiun and the scutellum : propodeon large, 

 obconical, declining, slightly ridged : podeon very short, but distinct : abdomen oval, 

 blue, almost flat above, deeply keeled beneath, much shorter than the thorax; meta- 

 podeon rather large, conical, concave along the disc ; octoon and following segments 

 short, their hind borders cupreous : legs fulvous ; coxae and thighs green, tips of the 

 latter fulvous ; tips of the tibiae and of the tarsi of the middle and of the hind legs 

 VOL. X3f . Y 



