1910.] FROM NORTHERN RHODESIA. 65 



Teracolus celimexe Lucas. 



This species was observed only in the lower Lnangwa and mid- 

 Zambezi valleys, and then only in the dry season. It frequents 

 extremely hot and dry spots, such as rocky hillsides, etc. It is 

 active and restless on the wing. 



Teracolus eris Klug. 



This species is common everywhere, the males especially having 

 a swift and active flight. 



Teracolus phlegyas Butler. 



I met with this species only in the Luangwa valley, and then 

 only at the lowest part of it, under 2000 feet elevation. Above 

 this it seems to be replaced by the next species. 



Teracolus regina Trim. 



This handsome species, especially in the wet season, is common 

 everywhere except, as mentioned above, in the lowest ground in 

 the Luangwa valley. It has a powerful flight, and is not at all 

 easy to catch. When it is abundant, a dull cool morning gives 

 the collector the best chance as, like other Pierinpe, it is much 

 influenced by the weather. The dry-season females are remark- 

 able for having acquired very much more of the purple tip of the 

 males than those of the wet phase. In the wet phase, the purple- 

 colour is often entirely absent or represented by a mere trace. 



Teracolus ann^e Wallengr. 



I captured occasional individuals of this species over the whole 

 area under discussion, but found it nowhere common. It is most 

 common in dry and rather barren localities. 



Teracolus omphale Godt. 



A common and universally distributed species throughout the 

 year. 



Teracolus achine Oram. 



A ubiquitous species, especially abundant in the dry season. 



Teracolus evenina Wallengr. 



A widely distributed insect, fairly common throughout the 

 year. By no means so abundant as the two preceding species. 



Teracolus antigone Boisd. 



A very abundant little species, particularly in open country. 



Teracolus auxo Lucas. 



Represented only by two males from the Luangwa valley 

 iv. and viii. 



Proc. Zool. Soc— 1910, No. V. 5 



