22 Mr. F. Walker on some British Chalcidites. 



men elliptical, smooth, shining, not compressed, scarcely more than 

 half the length of the thorax, a little narrower and less convex than 

 that of /. longulum and of /. longicorne ; metapodeon large, conical, 

 occupying about half the dorsum ; octoon scarce more than one- 

 fourth of the length of the metapodeon ; ennaton much longer than 

 the octoon ; decaton much longer than the ennaton ; protelum, 

 paratelum and telum very short : legs black ; knees fulvous ; tarsi 

 fuscous, paler beneath : wings slightly fuscous ; nervures fuscous ; 

 humerus much less than half the length of the wing, rejecting be- 

 neath a short branch ; ulna more than half the length of the humerus ; 

 radius less than half the length of the ulna ; cubitus a little shorter 

 than the radius ; stigma small. 



Decatoma Nicaese, fern. Fulva, dorso antennisque nigris, pedibus 

 fiavis, tibiis fusco cinctis, alis subfuscis, nervis fiavis, ulna stig- 

 mateque fuscis . (Corp. long. lin. 1 ; alar. lin. 1^.) 



Body convex : head and thorax rugulose, punctured, pubescent, 

 slightly shining : head yellow, piceous on the vertex, as broad as 

 the thorax : antennas dark piceous, clavate, shorter than the thorax ; 

 first joint long, slender ; second long-cyathiform, fulvous at the tip ; 

 third and fourth very minute ; fifth and following joints to the ninth 

 successively decreasing in length ; club broader than the ninth joint 

 and more than twice its length : thorax yellow, long-obconic, hardly 

 gibbous : prothorax large, quadrate, broader than long, fuscous on 

 the middle of the hind border : mesothorax piceous, varied with 

 yellow on each side ; scutum transverse ; parapsides prominent, 

 their sutures distinct ; axilla? large ; scutellum large, obconic, 

 abruptly declining "at the tip : metathorax transverse, very short : 

 propodeon short, obconic, abruptly declining, piceous before, behind 

 and along the middle : podeon minutely punctured, not one-sixth of 

 the length of the abdomen ; abdomen fulvous, elliptic, not gibbous, 

 keeled beneath, longer and slightly narrower than the thorax, having 

 the disc above and the hind borders of the segments piceous ; meta- 

 podeon shorter than one-fourth of the dorsum ; octoon much shorter 

 than the metapodeon ; ennaton longer than the octoon ; decaton 

 twice the length of the ennaton ; protelum more than half the length 

 of the decaton ; paratelum and telum very short : oviduct just pass- 

 ing the tip of the abdomen : legs yellow ; metatibise mostly fuscous : 

 wings limpid ; nervures fuscous ; humerus yellow, shorter than half 

 the wing ; ulna slender, not one-sixth of the length of the humerus ; 

 radius longer than the ulna ; cubitus as long as the radius ; stigma 

 of moderate size. 



