20 Mr. F. Walker on some British Chalcidites. 



as the thorax : antennae sHghtly clavate, shorter than the thorax ; first 

 joint long, slender ; second cyathiforra ; third and fourth very minute ; 

 fifth and following joints to the ninth long, but successively shorter ; 

 club fusiform, twice the length of the ninth joint : thorax somewhat 

 obconic, less convex than that of verticilluta, Serratulce, rujipes, tu- 

 mida and jAatyptera ; scutum of the mesothorax large, broader than 

 long ; sutures of the parapsides distinct, approaching each other ; 

 axillae large, triangular, not conniving ; scutellum truncate-conical, 

 abruptly declining at the tip, where it forms nearly a right an- 

 gle : metathorax transverse, very short : propodeon large, obconic, 

 abruptly declining, furrowed distinctly along the middle but less 

 clearly on each side : podeon much shorter than the propodeon : ab- 

 domen oval, smooth, shining, slightly convex, not much compressed, 

 as long as the thorax ; its height little more than half its length ; 

 the segments gathered together beneath ; metapodeon, octoon and 

 ennaton of moderate size ; decaton very large ; protelum, paratelum 

 and telum very short : oviduct concealed : wings broad ; humerus 

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

 length of the humerus, slender like that of E. Argele ; radius shorter 

 than the ulna ; cubitus as long as the radius ; stigma small, emitting 

 a short branch. 



Eurytoma Scultenna, mas. Atra, convexa, vix gibbosa, antennis 

 pedibusque nigris, genubus tarsis protibiisque Jiavis, alis iimpidis, 

 nervis pallide fuscis . (Corp. long. lin. 1^ ; alar. lin. 1|^.) 



Body convex : head and thorax roughly punctured : head a little 

 broader than the thorax : antennae setaceous, nodose, verticillate- 

 pilose, as long as the thorax ; first joint long, slender ; second cya- 

 thiform ; third and fourth very minute ; fifth and following joints 

 subquadrate, hardly dilated, successively decreasing in size, joined 

 closely together like those of E. tumida : thorax somewhat obconic, 

 less convex than that of verticilluta, Serratulce, rujipes, tumida or 

 platyptera : prothorax transverse, quadrate, not narrower in front ; 

 its breadth rather more than twice its length : scutum of the meso- 

 thorax broader than long ; sutures of the parapsides distinct, approach- 

 ing each other ; axillae large, triangular, not conniving ; scutellum 

 somewhat conical, truncate in front, abruptly decumbent at the tip, 

 where it nearly forms a right angle : mesothorax transverse, very 

 short : propodeon large, obconic, abruptly declining, furrowed indi- 

 stinctly along the middle and less clearly on each side : podeon 

 cylindrical, slender, dull, punctured, as long as the propodeon : ab- 

 domen oval, smooth, shining, compressed, abruptly decumbent in 

 front and towards the tip, little more than half the length of the 

 thorax ; its height does not equal its length ; metapodeon occupy- 

 ing more than one- third of the dorsum, having a longitudinal chan- 

 nel ; octoon rather large ; ennaton very large ; decaton of moderate 

 size ; protelum, paratelum and telum very short : wings broad ; 

 humerus much less than half the length of the wing ; ulna thick, 

 not half the length of the humerus ; radius much shorter than the 

 ulna; cubitus a little shorter than the radius; stigma small, emit- 

 ting a short branch. 



