212 Dr. F. A. Dixey 07i 



placing the orange in the centres of the apical 

 interspaces. This is the specimen referred to by 

 Mr. Marshall as E, No. 15 (p. 210). 

 E2 and 3. Hatched May 8 ; pupated June 28 ; normal 

 conditions ; emerged July 26. Two dry-season 

 males. 



F. A wet-season female. Captured May 3, 1899. Laid 



2 eggs, which hatched on May 9. Offspring : — 

 Fl. Pupated June 27; normal conditions; emerged 



July 2G. A dry-season male. 

 F2. Pupated June 28 ; normal conditions ; emerged 



July 26. A yellow dry-season female, not extreme. 



G. A wet-season female. Captured May 10, 1899. Laid 



10 eggs. Offspring: — 



Gi. Hatched May 18; reared under normal conditions; 

 emerged July 31. A white dry-season female, not 

 extreme. 



G2. Hatched May 18 ; normal conditions ; emerged 

 Aug. 3. A dry-season male. 



In all the above cases, the " dry-season " offspring of the 

 parent Teracolus ompliale corresponds generally with the 

 form described by Mr. Trimen (South African Butterflies, 

 vol. iii, 1889, p. 145) as T. theogonc, Boisd. The specific 

 identity of these two forms had long been suspected, and 

 by the above series of specimens is placed absolutely 

 beyond doubt. 



In 1898 Mr. Marshall sent home a collection of butter- 

 flies from Salisbury, Mashonaland, which was described by 

 Dr. Butler in Proc. Zool. Soc, 1898, pp. 902-912. In an 

 accompanying letter to Dr. Butler he says : " I am some- 

 what in doubt as to the Teracoli I have sent you labelled 

 2Mlle7ic, for they are practically indistinguishable from the 

 extreme dry form of omphale ; yet the wet form is cer- 

 tainly not omjyhcde, which I do not remember ever to have 

 seen here, but seems referable to 'jjttllcne." Dr. Butler {Joe. 

 cit., p. 911) "has not the least doubt that these examples 

 are ordinary T. om-phcde!' An examination of similar 

 specimens sent to the Hope collection by Mr. Marshall as 

 T. pallcne, led me independently to the same conclusion as 

 Dr. Butler; and it is worthy of notice that while several 

 of the bred examples just described are not separable from 

 Mr. Marshall's specimens of 2\ ixtUcnc, the four parents, 

 all of which were captured at Salisbury, are identified by 

 Mr. Marshall himself as T. ovqihale. The inference seems 



