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



serted by the mouth, not longer than the thorax. Thorax witli 

 the usual structure ; scutellum unarmed ; calli at the base of the 

 fore-wings red. Petiole extremely short. Abdomen elongate- 

 oval, attenuated towards the acute tip, red beneath, a little longer 

 and narrower than the thorax ; first segment occupying about half 

 the surface ; the following segments much narrower above than 

 on each side. Legs red, of the usual structure ; hind-femora in- 

 crassated, with a very obtuse tooth near the tip beneath. Wings 

 cinereous, short ; veins black. Fore-wings clouded with brown 

 in the disk ; ulna hardly one-fourth of the length of the humerus ; 

 radius obsolete ; cubitus very short. 



Length of the body 2^ lines ; of the wings 3 lines. 



Adelaide. In the British Museum. 



HalUcella simplex. 

 Fcem. — Nigra, sat gracilis ; caput et thorax subtilissime punc- 

 tata ; caput impressum, facie perobliqua ; antennae graciles, 

 sub-clavatse, thorace vix breviores ; scutellum inerme ; ab- 

 domen longi-ovatum, subtus apiceque rufum, thorace non 

 longius ; pedes rufi, femoribus posticis nigris, dentatis ; alse 

 cineress. 

 Female. — Black, very closely allied to H. fabricator (sup. p. 365). 

 Head and thorax very minutely punctured. Head much impressed 

 in front. Antennae red, slender, filiform, inserted by the mouth, 

 not longer than the thorax, blackish in the middle part. Thorax 

 with the usual structure ; scutellum unarmed ; calli at the base 

 of the fore-wings red. Petiole extremely short. Abdomen 

 elongate-oval, attenuated towards the acute tip, red beneath and 

 at the tip, a little longer and narrower than the thorax. Legs 

 red, of the usual structure ; femora mostly black ; hind-femora 

 incrassated, with a very obtuse tooth near the base beneath. 

 Wings cinereous, short ; veins black. Fore-wings slightly clouded 

 with brown in the disk ; ulna hardly one-fourth of the length of 

 the humerus ; radius obsolete ; cubitus extremely short. 

 Length of the body 2| lines; of the wings 3| lines. 

 Sierra Leone. Discovered by Mr. Foxcroft. In the British 

 Museum. 



Hallicella dubitator. 

 Fcem. — Nigra, sat gracilis ; caput et thorax subtilissime punc- 

 tata ; caput thorace pauUo latius, facie perobliqua ; antennae 

 clavatae, thorace paullo longiores ; scutellum valde produc- 

 tum, apice acutum ; abdomen fusiforme, thorace non longius ; 



