966 DE. A, G. BUTLER ON BUTTERFLIES [NoV. 28, 



blazing sun until my net reached me, fully three quarters of an 

 hour." 



The two specimens are of much interest, as thoy clear up one 

 of the greatest muddles which has been made over any species 

 of Lyccenidce : — In 1891 Rogenhofer described a butterfly which 

 was quite unknown to English entomologists under the name of 

 " ChrysopJianus jpecidiaris " ; naturally nobody expected a Cato- 

 chrysops to be called a Chrysophanus. In 1892 Dr. Holland 

 described the same species in the ' Entomologist ' under the name 

 oi Lyccena perpulchra ; in 1893 I described a male from Wasin 

 and a female from the Victoria Nyanza as Castalius Jiypoleucus ; 

 and in 1894 Mr. Trimen described O. peculiaris again under the 

 name of Lyccena exclnsa. Dr. Holland subsequently pointed out 

 that G. Jiypoleucus and L. exclvsa were synonymous with his 

 L. perpulchra. In 1898 Mr. Trimen received some large examples 

 from Mashunaland which he rightly stated to be identical with 

 our Nyanza female ; but instead of adopting my name for this 

 form, be called it Lyccena gigantea, stating that I had confounded 

 the female with that sex of L. perpulcJira (entirely overlooking the 

 fact that the Nyanza female was described by me as the type of 

 that sex of Castalius hypoleucus). At the commencement of the 

 present year, when working out tlie species of Chrysop)7ianus, I 

 recognized 0. peculiaris Eogenh. as the oldest name for the present 

 species, and entered it in my paper on Mr. Crawshay's last 

 collection. Professor Aurivillius also recognized Eogenhofer's 

 species in his ' Ehopalocera JEthiopica,'" where, however, he retained 

 Mr. Trimen's name for the larger form, ignoring the fact that my 

 female unquestionably takes priority. 



The two examples now sent home by Mr. Crawshay are quite 

 intermediate in character between the large and small forms, the 

 colouring of the iipper surface agreeing most nearly with 

 C. peculiaris § , the expanse of wing being nevertheless equal to 

 that of my Victoria Nyanza female. Like the latter and a worn 

 and faded female from Zomba (which Trimen refers to as the 

 Nyasa female), they have from one to two extra black spots in the 

 discal series on the under surface of the primaries ; the black 

 discocellular spot is smaller than in the little Zomba female, but 

 varies in size in the two examples. It is absolutely impossible to 

 say that these examples belong to one form rather than to the 

 other, and I do not doubt that they represent an intermediate 

 phase between C. hyp)oleucus=: gigantea the wet phase, and 

 C. peculiaris the dry phase, of one and the same species. 



23. AzANUS NATALENSis Trim. 



c?,Tana Eiver, 3800 feet, 16th January, 1899. 

 " The only specimen seen" (R. C). 



24. AzANUS ZENA Moore (Lyccena macalenga, Trim.). 

 d, Kitwi, 4000 feet, 30th December, 1898. 



