Lord Rothschild on some Lepidoptera. 247 



XXXI. — On the Lepidoptera collected in 1913-1914 by Herr 

 Geyr von Schweppenburg on a Journey to the Hoggar 

 Mountains. By LORD ROTHSCHILD, F.li.S., Ph.D. 



Part I. 



The journey on which these insects were collected was 

 undertaken on behalf of Professor A. Koenig of Bonn by 

 Heir Paul Spatz and Herr Geyr von Schweppenburg, and 

 had as main object the collecting of birds, mammals, and 

 reptiles. 



They started from Biskra, and went down to Ideles via 

 Touggourt, Ouargla, Ain->Tttiba, and Timassinin. No Lepi- 

 doptera were collected north of Touggourt, and the bulk of 

 the 900 odd specimens were captured south of Timassinin. 



Rhopalocera. 

 Papilionidse. 



PlERINM. 



(1) Pieris rapce ? leucotera, Stef. 



Pieris rapes, var. leucotera, Stefanelli, Bull. Soc. Entom. ltal. 1869, 

 p. 147 (Florence). 



1 <J , Ouargla, June 4, 1914. 



(2) Evchloe fallout obsolescens, Rothsch. 



Euchloe falloui obsolescens, Rothschild, Novit. Zool. vol. xx. p. 112. 

 no. 6 (1913) (South Oued Mya). 



1 ? , Oued Ag'elil, N. of Ideles, March 19 ; 1 <$ , Ideles, 

 March 20, 1914. 



(3) Teracolus helvolus, Butl. 



Teracolus helvolus, Butler, Proc. Zool. Soc. Lond. 1888, p. 94 (Somali- 

 laud). 



1 c? , 2 ? ? , March 25, 1 <$ , March 27, 1914, Ideles. 



(4) Colias electo croceus (Geoff, in Fourcr.). 



Pcqnlio croceus, Geoffrey, in Fourcroyer's Entornologia Parisiensis, 

 vol. ii. p. 250 (1785) (Paris). 



2 <?c?,3 ? ?,and 1 ? form ? helice, Hiibn., Ouargla, 

 June 4, 1914. 



