Mr. Walker on Chalcidites. 155 



of the tenth joint : thorax elliptical : prothorax transverse, short : scutum of the meso- 

 thorax broad ; sutures of the parapsides indistinct ; axillae triangular, large, not com- 

 plete ; scutellum conical, aeneous-green, having a slight trace of a transverse suture near 

 its tip : propodeon obconical, declining, rather large : podeon very short, but distinct : 

 abdomen cupreous-black, shining, depressed, increasing in breadth from its base till 

 near its tip, having an obscure fulvous spot near its base, rather shorter and narrower 

 than the thorax; metapodeon of moderate length; octoon and following segments 

 shorter than the metapodeon: legs fulvous; coxae green; thighs piceous, their tips 

 fulvous : wings fuscous ; nervures piceous ; humerus much less than half the length of 

 the wing ; ulna more than half the length of the humerus ; radius rather longer than 

 the ulna ; cubitus slightly curved, about half the length of the radius ; stigma very 

 small. 

 Found by Dr. Greville near Edinburgh. 



In the structure of the prothorax, the scutellum and the podeon, it ap- 

 proaches the genus Trigonoderus, Westwood. 



Pteromalus Xanthe, mas. Viridis, abdominis disco eeneo, antermis piceis, 



pedibus fulvis, femoribus piceis, tarsis flavis, alis limpidis. 

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



Body linear, bright green : head transverse, dark green, a little broader than the thorax : 

 antennae piceous, filiform, as long as the thorax; first joint fulvous, piceous towards the 

 tip ; fifth and following joints linear ; club fusiform, twice the length of the tenth joint : 

 thorax elliptical, inclining to aeneous along the sutures : prothorax very short : scutum 

 broad; sutures of the parapsides indistinct; axillae large, triangular, not complete; 

 scutellum obconical, having a cupreous band across it, but with no trace of a suture : 

 propodeon obconical, declining : podeon very short : abdomen shining, depressed, in- 

 creasing in breadth towards the tip, which is very minutely squameous, a little shorter 

 and narrower than the thorax ; disc aeneous ; metapodeon of moderate length ; octoon 

 and following segments shorter than the metapodeon, successively decreasing in length 

 until the telum : legs fulvous ; coxae green ; middle and hind legs with piceous thighs, 

 yellow knees and tarsi, the tips of the latter fuscous : wings limpid ; nervures piceous ; 

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

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

 than the radius ; stigma small. 



Found by Dr. Greville near Edinburgh, 



Nearly allied to Pt. Coryphe (Monographia Chalciditum, i. 266). 



x2 



