and Characters of imdescribed Species. 365 



Head very deeply impressed ; face extremely oblique. Antennae 

 filiform, inserted by the mouth, a little shorter than the thorax. 

 Scutellum prominent, bidentate. Metathorax scabrous. Petiole 

 extremely short. Abdomen fusiform, acute, hardly compressed, 

 with cinereous tomentum towards the tip, a little narrower but not 

 longer than the thorax. Hind-femora incrassated, not dentate ; 

 hind-tibiae slightly dilated and curved. Wings dark cinereous ; 

 veins black; ulna not more than one-sixth of the length of the 

 humerus ; radius and cubitus very short. 



Length of the body 3 lines ; of the wings 4g lines. 



Makessar, Celebes. Discovered by Mr. Wallace. In Mr. Saun- 

 ders' collection. 



Halticella moderator. 

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

 tata ; caput impressum, facie perobliqua ; antennae graciles, 

 sub-clavatae, thorace fere breviores ; scutellum inerme ; ab- 

 domen longi-ovatum, subtus apiceque rufum, thorace non 

 longius ; pedes rufi, femoribus posticis nigris dentatis ; alae 

 cinereae. 



Female. — Black, rather narrow. Head and thorax very minutely 

 punctured. Head impressed in front ; face very oblique. An- 

 tennae slender, sub-clavate, inserted near the mouth, hardly as 

 long as the thorax. Thorax with the usual structure ; scutellum 

 unarmed ; metathorax hardly oblique. Petiole extremely short. 

 Abdomen elongate-oval, not longer than the thorax, red beneath 

 and at the tip, which is acute and slightly ascending. Legs red ; 

 coxae and hind-femora black, the latter much incrassated, armed 

 beneath with several minute teeth. Wings cinereous ; veins 

 black ; ulna not more than one-third of the length of the humerus ; 

 radius and cubitus extremely short. 



Length of the body 2| lines; of the wings 4 lines. 



Algeria. In the British Museum. 



Halticella fabricator. 



Fcem. — Nigra; caput et thorax subtilissime punctata; caput 



valdfe impressum ; antennae graciles, filiformes, thorace non 



longiores ; thorax callis rufis, scutello inermi ; abdomen 



longi-ovatum, subtus rufum, apice attenuatum, thorace paullo 



longius ; pedes rufi, femoribus posticis unidentatis ; alae 



cinereae, breves. 



Female. — Black. Head and thorax very minutely punctured. 



Head much impressed in front. Antennae slender, filiform, in- 



