150 MR. A. G. BTJTLER ON INDIAN LEPIDOPTERA. [Apr. 3, 



says, " Very common here in December and January ;" and of the 

 second, " Not common here, only eight taken in December and two 

 in January ; is smaller than any Kurrachee examples of Moore's 

 karsandra, and has a tinge of blue in the fresh specimens which I 

 never observed in the Kurrachee ones." 



I must confess my inability to admit the first of these differences : 

 some of the Kurrachee specimens which Colonel Swinhoe sent us are 

 certainly as large as some of the Mhow specimens of Z. indica ; the 

 blue spot, however, is certainly brighter in the latter. 



Var. decreta. 



Smaller and paler than the preceding ; the discal series of black 

 spots across the under surface of the primaries always very large ; 

 the other markings badly defined. Expanse of wings 17-19 mm. 



Mhow, December 1881 and January 1882. 



I am inclined to agree with Colonel Swinhoe that this is probably 

 a small form of the preceding. It appears, however, to be a " very 

 common" one, and therefore may turn out to be as distinct as our 

 Ganoris hrassica and G. rapis are when its life-history has been 

 studied. It is impossible to be sure, from a mere examination of the 

 imago, whether a butterfly or moth is a variety or a species : perhaps 

 one of the best proofs of this may be found in the Geometrid genus 

 Eugonia (Ennomos auct.), where the moths differ far less than the 

 authenticated varieties of species in other genera (such as Abraxas 

 for instance), yet the larvae are widely distinct both in form and 

 cjlouring. 



19. Terias hecabe ? 



Papilio hecabe, Linnaeus, Mus. Lud. Ulr. p. 249 (1764). 



S $ • Mhow, September and November 1881. 



The specimens are smaller and paler in colour than the typical 

 Chinese form of the species. Colonel Swinhoe placed it with 

 T. excavata, from which, however, it differs in the decidedly broader 

 dark border to the secondaries and the absence of the characteristic 

 irregular subapical brown marking on the under surface of the 

 primaries, 



20. Terias hecabeoides. 



Terias hecabeoides, Men6tries, Cat. Mus. Petr., Lep. i. p. 85, 

 pi. 2. fig. 2 (1855). 



S . Mhow, September 1881. 



" Not so deep a yellow as the hecabe from Kurrachee ; black 

 border on secondaries deeper than usual, deeper than any other 

 species of the hecabe type in my collection. Common here in Sep- 

 tember."— C. S. 



21. Terias ^sioPE. 



Terias eesiope, Menetries, Cat. Mus. Petr., Lep. i. p. 85, pi. 2. 

 fig. 3 (1855). 



cJ $ . Mhow, September and October 1881. 

 Of the male, which Colonel Swinhoe regarded as a variety of the 



