336 Mr. F. Walker on the species of Chalcidites 



breadth much more than twice its length : scutum of the mesothorax 

 rather long ; sutures of the parapsides distinct ; axillae large, trian- 

 gular ; scutellum rhomboidal, having a rim along its hind border : 

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

 decumbent, having a rim on each side : podeon stout, very short : 

 abdomen elliptical, smooth, shining, concave above, keeled beneath, 

 a little narrower and much shorter than the thorax ; segments re- 

 tracted beneath and hiding the ventral segments ; metapodeon occu- 

 pying much less than one-third of the dorsum ; octoon much shorter 

 than the metapodeon ; ennaton much shorter than the octoon ; de- 

 caton and protelum of moderate size, each equal to the ennaton ; 

 paratelum and telum short : legs fulvous ; coxae green ; thighs fus- 

 cous towards the base ; tips of middle tibiae slightly fuscous ; middle 

 and hind tarsi yellow, their tips fuscous : wings white, narrow ; ner- 

 vures pale fulvous ; humerus much shorter than half the length of 

 the wing ; ulna not much more than half the length of the humerus ; 

 radius very much longer than the ulna ; cubitus shorter than the 

 ulna ; stigma very small, emitting a short branch. 



Var. jS. Thighs mostly green. 



Alten. 



Lamprotatus Lesches, mas. Viridis, abdomine ceneo, antennis piceis, 

 pedibus flavis, alis limpidis. Fern. ? Antennis nigris, abdomine 

 cyaneo-viridi, pedibus fulvis \ femoribus viridibus. (Corp. long, 

 lin. 1—4; alar. lin. 2— 2£.) 



Male. — Head and thorax green, convex, finely squameous : head a 

 little broader than the thorax : antennae piceous, filiform ; first joint 

 long, stout, fulvous toward the base ; second cyathiform ; third and 

 fourth very minute ; fifth and following long, linear : thorax elliptical : 

 prothorax transverse, rounded in front, much narrower than the meso- 

 thorax ; its breadth not more than twice its length : scutum of the 

 mesothorax broad ; parapsides prominent, their sutures very distinct ; 

 axillae large, triangular, approaching each other ; scutellum rhom- 

 boidal, having a transverse suture near the hind border : metathorax 

 transverse, very short : propodeon large, obconic, slightly decumbent : 

 podeon short, stout : abdomen aeneous, flat, nearly linear, smooth, 

 shining, shorter and narrower than the thorax; metapodeon con- 

 cave, occupying about one-third of the dorsum ; octoon, ennaton, 

 decaton and protelum of moderate size ; paratelum and telum very 

 short : legs yellow ; coxae green ; tips of tarsi fuscous : wings limpid, 

 ample ; nervures fuscous ; humerus much less than half the length of 

 the wing ; ulna not more than half the length of the humerus ; radius 

 nearly twice the length of the ulna ; cubitus much shorter than the 

 ulna; stigma large, emitting a short branch. 



Female} — Antennae black, slender, subclavate, as long as the 

 thorax ; first joint long, slender, green ; second cyathiform ; third 

 and fourth very minute ; fifth and following joints long, linear, suc- 

 cessively decreasing in length, and slightly increasing in breadth 

 until the tenth ; club fusiform, twice the length of the tenth joint : 

 abdomen oval, convex, bluish green, keeled beneath, much shorter 



