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



thorace brevius, apicera versus pubescens ; pedes flavi, 

 femoribus posticis nigris basi flavo guttatis apice flavis ; alae 

 cineress. 



Male. — Black, thick. Head and thorax very minutely punc- 

 tured. Antennae stout, linear, a little shorter than the thorax. 

 Thorax with the usual structure ; scutellum bidentate ; calli at 

 the base of the fore- wings pale yellow. Metathorax scabrous. 

 Petiole extremely short. Abdomen elliptical, shorter and 

 narrower than the thorax, pubescent hindward. Legs yellow ; 

 coxae black ; hind-femora black, much incrassated, armed beneath 

 with minute yellow-tipped teeth, with a yellow dot at the base 

 beneath. Wings cinereous ; veins black ; ulna about half the 

 length of the humerus ; radius not more than one-fourth of the 

 length of the ulna ; cubitus very short. 



Length of the body Sg lines ; of the wings 5 lines. 



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



Chalc'is Polyctor. 



Mas et Fcem. — Nigra, robusta ; caput et thorax dense punc- 

 tata, capite excavato ; antennae sub-clavatae, thorace bre- 

 viores ; thorax callis albis, scutello bidentato ; abdomen 

 ellipticum ; pedes albo varii, femoribus tibiisque posticis 

 tarsisque rufis ; alae cinereae. 



Chalets Polyctor, Walk. *' The Entomologist," 218. 



Male and Female. — Black, stout. Head and thorax thickly 

 punctured. Head much excavated in front. Antennae sub- 

 clavate, robust, shorter than the thorax. Thorax with the usual 

 structure ; scutellum bidentate ; callus at the base of the fore- 

 wings white. Petiole extremely short. Abdomen elliptical, 

 shorter than the thorax in the male, full as long as the thorax in 

 the female, where it is slightly attenuated towards the acute tip. 

 Tarsi red. Anterior femora black, with white tips ; anterior 

 tibiae white at the base and at the tips. Hind-femora red, much 

 incrassated, with white tips, armed beneath with several rather 

 large teeth ; hind-tibiae red, white at the base and at the tips. 

 Wings cinereous ; veins black ; ulna full half the length of the 

 humerus in the male, less than half the length of the humerus in 

 the female ; radius and cubitus very short. 



Length of the body 2i — 3 lines ; of the wings 4 —5 lines. 



West and South Africa. In the British Museum. 



The former description of this species is incomplete. 



