horn the region of the Straits of Gihrattar. 371 



so in June and forms intermediate between it and the 

 type are occasionally met with. On November 22nd, 

 1886, I took a very beautiful " gynandromorphous " 

 specimen in the cork-woods, having the right wings 

 male and the left female ; this was flying among numerous 

 examples of the ordinary form, apparently, like it, only 

 just emerged from the pupa. On June 6th, 1888, the 

 abundance of this butterfly on the Eock of Gibraltar 

 was so great as to attract general attention, it being 

 visible by hundreds, even in the main street of the town. 

 I have often found and reared the larvse on species of 

 Lotus. {C. hyale, L., though well looked out for, did 

 not put in an appearance ; it certainly should occur in 

 the region.) 



Gonepteryx rhamni, L. — Not seen on the Eock of 

 Gibraltar, but common at San Eoque and Alge9iras, 

 also at Tangier, flying with G. deoixitra ; very large and 

 fine, the males averaging 2 in. 8 lin. i68 mm.) in expanse. 

 First observed June 4th, also in March and April after 

 hibernation. 



G. Cleopatra, L. — Abundant on the Eock and through- 

 out the Gibraltar district, as well as on the African side 

 of the Straits at Tangier, Benzus Bay, &c. ; in May, 

 June, and July, also in early spring (from February 

 17th) after hybernation. I have taken fresh specimens 

 (in 1887) at San Eoque as early as April 30th. 



Thecla spini, Schiff. — Not a rare species in the cork- 

 woods ; also on the steep bushy slope of the Eock 

 above the Alameda, where it frequents the flowers of a 

 si^eciea of Sedum {altissinmm, Poir.), which grows there 

 in plenty. The ab. female lynceus, Hiibn., is much more 

 common than the type. First seen in the cork-woods, 

 May 14th, 1887. 



T. ilicis, E. (var. cescuU, 0.).— Very abundant in the 

 cork-woods, and also observed at Benzus Bay and 

 Tangier, but not on the Eock of Gibraltar. It flies over 

 the low bushes, and is partial to the flowers of Scahiosa, 

 from which it may be taken with the fingers. First 

 observed 14th May, 1887, and lasts until the end of 

 June. 



T. rohoris, E. — I have only met with this beautiful 

 little butterfly on two or three occasions in the cork- 

 woods, where, in June, it flies round the tops of the tall 

 oaks (Qiiercus lusitanica), usually well out of reach of 



