394 Mr. F. Walker's Notes on Chalcidites, 



femora antica sub-incrassata ; alee anticae suffuscescentes, 

 maculis duabus nigricantibus. 



Female. — Bright bluish-green, elongate. Head and thorax 

 thickly punctured. Head hardly broader than the thorax ; face 

 oblique. Antennas black, filiform, not longer than the thorax ; 

 first joint green, inserted near the mouth. Thorax shorter than 

 in the preceding species. Prothorax short, transverse. Scutum 

 and scutellum cupreous ; the latter green at the tip, beyond which 

 the metascutellum terminates in a curved spine. Abdomen sessile, 

 lanceolate, much attenuated, very finely punctured, flat above, 

 keeled beneath, a little more than twice the length of the thorax ; 

 sutures of the segments purplish; apical part filiform, compressed, 

 purplish. Legs red; fore-femora slightly incrassated ; fore-tibiae 

 short. Wings cinereous. Fore-wings slightly brownish-tinged, 

 with (wo blackish spots ; veins black, in structure like those of 

 the preceding species. 



Length of the body 8 lines ; of the wings 6 lines. 



Ega. Discovered by Mr. Bates. In the British Museum. 



Genus Balcha. 



Fcem. — Corpus longum, angustum. Caput et thorax dense 

 punctata. Caput thorace non latius ; facies non obliqua. 

 Antennae filiformes.gracillimae, thorace longiores. Prothorax 

 brevissimus. Parapsidum suturse indistinctae; scutellum 

 sat parvum. Metatliurax brevis. Abdomen sessile, lanceo- 

 latum, coinpressum, glabrum, planum, subtus carinatum, 

 postice sub-ascendens, thorace fere duplo longius. Pedes 

 breves, robusti ; femora antica sub-dilatata. Alae sat an- 

 gustae. 



Female. — Body long, narrow. Head and thorax thickly punc- 

 tured. Head as broad as the thorax ; face vertical. Antennae 

 filiform, very slender, seated rather far from the mouth, longer 

 than the thorax. Prothorax very short. Scutum broader than 

 long ; sutures of the parapsides indistinct ; scutellum rather small. 

 Metathorax short. Abdomen smooth, sessile, lanceolate, com- 

 pressed, flat above, keeled beneath, slightly ascending hindward, 

 almost twice the length of the thorax. Legs short, stout ; fore- 

 femora slightly dilated. Wings rather narrow ; ulna more than 

 half the leugth of the humerus, as long as the radius ; cubitus 

 rather long. 



This genus seems to be most nearly allied to Stenocera, but is 

 sufficiently distinct. 



