664 Dr. G. B. Longstaff's Bionomic Notes on Butterfiies. 



season form the ground colour of the under-side is of a 

 bluish-grey, the transverse lines are distinct and the ocelli 

 well marked. 



In the Dry-season form the ground colour is browner in 

 tint, the transverse lines are faint and the ocelli are minute. 



I give, in a tabular form, a statement of all the specimens 

 that I took, divided into the three classes "Dry," " Wet," 

 and " Intennediate." The specimens classed as inter- 

 mediate I have attempted to divide according as they 

 seem to approach nearer to one form or the other. Males 

 and females are distinguished and the dates of capture 



given. 



Euptychia hermes, Fabr., caiiierta, Cram. 



It is somewhat remarkable that the specimens from 

 Tobago were all distinctly "Wet" though the country 

 showed every sign of extreme drought. Here the distinc- 

 tion between the forms might be local and not seasonal ; 

 or, as I am disposed to think, a seasonal form may have 

 become localised. 



Precis lavinia, Cram. The nomenclature of this species 

 is in great confusion. Messrs. Godman and Salvin brought 

 together the various forms found in Central America under 

 the name ccenia, Hiibn., including what is generally known 

 in the West Indies as rjenoveva, Cram. Mr. Guy A. K. 

 Marshall has recently rearranged the genus Precis in the 

 National Collection, and I am happy to find myself in 

 complete agreement with one whose knowledge of the 

 genus is so intimate. Cramer figured three forms, all 

 from Surinam ; a ^ which he called lavinia, a $ which 

 he called evarete, and a $ which he called gcnoveva. The 

 last two I agree with Mr. Marshall in considering to be 

 Dry- and Wet-season forms respectively. The insect is 



