156 Mr. Walker rni Chalcidites. 



Pteromalus Aollius, mas. Viridis, scutello viridi-seneo, antennis fuscis, basi 

 viridibus, pedibus fulvis, coxis femoribusque viridibus, tibiis fusco-cinctis, 

 alis limpidis. 



Corp. long. lin. |-|; alar. lin. 1-1 5. 



Body nearly linear : head and thorax bluish-green : head a little broader than the thorax : 

 antennae subclavate, slender, fuscous, as long as the thorax ; first joint green ; club 

 elliptical, more than twice the length of the tenth joint : thorax oval : prothorax very 

 short : sutures of the parapsides indistinct ; scutellum obconic, aeneous-green : propo- 

 deon obconic, aeneous, declining : podeon very short : abdomen nearly linear, depressed, 

 shining, dark aeneous-green, rather shorter and narrower than the thorax ; metapodeon 

 of moderate size ; octoon and following segments shorter : legs fulvous ; coxae and 

 thighs green ; a broad fuscous band across each tibia : wings limpid ; nervures fuscous ; 

 humerus much less than half the length of the wing ; ulna a little more than half the 

 length of the humerus ; radius shorter than the ulna ; cubitus a little shorter than the 

 radius ; stigma very small. 



September ; North Wales. 



Its Structure approaches that of the first division of Pteromalus (Entomo- 

 logical Magazine, ii. 477)- 



Pteromalus Antho, mas. Viridis, abdomine purpureo, antennis nigris, pedi- 

 bus piceis, femoribus viridibus, alis sublimpidis. 

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



Head and thorax dark green : head broader than the thorax : antennae filiform, black, as long 

 as the thorax ; first joint green ; club fusiform, twice the length of the tenth joint : thorax 

 elliptical : prothorax very short : scutum broad ; sutures of the parapsides very indistinct; 

 scutellum obconical, having no traces of a transverse suture : propodeon obconical, de- 

 clining, ridged lengthwise : podeon very short : abdomen linear, depressed, shining, 

 dark purple, tinged with green towards the base, shorter and much narrower than the 

 thorax : metapodeon larger than the following segments, which are rather short and 

 nearly equal in size : legs piceous ; coxae and thighs green ; knees fulvous : wings with 

 a very slight fuscous tinge ; nervures fuscous ; ulna rather broad, hardly half the length 

 of the humerus ; radius a little shorter than the ulna ; cubitus shorter than the radius ; 

 stigma of moderate size. 



England. From the collection of the Rev. G. T. Rudd. 



This species is allied to Pt. Favorinus (Monographia Chalciditum, i. 263), 

 but differs in the antennae, in the legs and in the stigma of the wing. 



