new Species of Diplopter a. Ill 



almost reaching to the apex, mandibles, the inuer margin of 

 the eyes (including the lower portion of the sinus), the inter- 

 mediate coxae beneath, and the second abdominal sternite 

 pale testaceous. 



Hab. Between Salt Lake and Wawamba, near Mount 

 Ruwenzori, Uganda {Scott Elliot). 



The only other known African species of Polybia is 

 P. tabida, F., the type of which is in the Bauksian Collection. 



Megacanthopus, Ducke. 



Megacanthopus pallidipectus, 



Polyhia pallidipectus, Smith, Cat. Hymen. Brit. Mus. v. p. 128. no. 36 

 (,1857). 



Type in British Museum. 



Megacanthopus tapuya. 

 Polyhia tapuya, Scbulz, Hymen. Stud. p. 133 (Amazons). 



Type in British Museum. 



Megacanthopus flavitarsis. 



Polybia' flavitar sis, Sauss. Etud. fam. Vespid. ii. p. 199 (1853) (Cali- 

 fornia). 



Type in British Museum. 



Megacanthopus cubeiisis. 

 Polybia cubensis, Sauss. ttud. fam. Vespid. ii. p. 202 (1853). 

 Type in Paris Museum. 



These four species are all referable to Ducke's genus 

 Megacanthopus. 



Nectarina, Shuck. 

 Nectarina amazonica. 

 Charteryus amazonicus, Cam. Zeitschr. Hymenop. vi. p. 380 (Amazonia). 



Nectarina lecheguana. 



Nectarina lecheguana, Latr. Memobes du Museum d'Histoire Natu- 



relle, tome xi. p. 317, t. xii. pi. sii. fig. 13 (1824). 

 Charteryus centralis, Cam, 



