370 Mr. F. Walker's Notes on Chalcidiies, 



abdomen ellipticum, thorace multo brevius ; pedes femoribus 

 posticis dentatis, genubus tarsisque pallide rufescentibus ; 

 alae cinerese. 

 Male.; — Black. Plead and thorax minutely punctured. Head 

 much impressed in front; face very oblique. Antennae stout, 

 sub-clavate, inserted near the mouth, a little shorter than the 

 thorax. Thorax with the usual structure ; scutellum unarmed ; 

 inetathorax scabrous. Petiole extremely short. Abdomen ellip- 

 tical, narrower and much shorter than the thorax. Knees and 

 tarsi pale -reddish ; hind-femora armed beneath with some minute 

 teeth. Wings cinereous; veins black ; ulna about half the length 

 of the humerus ; radius and cubitus very short, the former a little 

 longer than the latter. 



Length of the body If line ; of the wings 3^ lines. 

 Tasmania. Discovered by Mr. A. J. Smith. In the British 

 Museum. 



Sect. II. 

 Genus Sosxetra. 

 Fcem. — Corpus sat robustum. Caput et thorax punctata, sub- 

 pubescentia. Caput brevissimum, thoracis latitudine ; facies 

 striata, sub-depressa. Mandibulse dentatse. Palpi breves. 

 Antennae 9-articulatae, filiformes, fronte insertae ; articulus 

 1"^ subclavatus, subcompressus ; 2"^ brevissimus ; 3"' et 

 sequentes lineares, subsequales ; 9"^ apice conicus. Pro- 

 thorax subquadratus, transversus. Mesothorax brevis ; pa- 

 rapsidum suturae conspicuae ; paraptera et epimera magna ; 

 scutellum vix bidentatum. Metathorax bene determinatus. 

 Abdomen laeve, valde compressum, thorace non longius ; 

 segmenta antice contracta. Pedes laeves, simplices, brevius- 

 culi ; femora et tibiae compressa, subdilatata ; tibiae inter- 

 mediae valde dilatatae. Alae anticae latae, non longae. 



Female. — Body moderately stout. Head and thorax punctured, 

 slightly pubescent. Head vertical, very short, as broad as the 

 thorax ; face slightly depressed, with striae converging towards 

 the mouth ; mandibles dentate ; palpi short. Antennae filiform, 

 9-jointed, seated on the front, less than twice the length of the 

 breadth of the head ; scape slightly clavate and compressed, with 

 a minute globular protuberance on the underside near its tip ; 

 2nd joint very short ; flagellum pubescent, slightly tapering, com- 

 posed of seven linear joints, which are nearly equal in length ; 

 9th conical at the tip. Thorax convex. Prothorax sub-quadrate, 

 more than twice broader than long. Mesothorax short; sutures 

 of the parapsides distinct ; paraptera and epimera large ; scufel- 



