Dr. G. B. Longstaff's Bionomic Notes on Bittterjlies. 619 



scent, in one case described as " like that of G. hrassicm," 

 in another as " somewhat sickly." 



Picris sp. — apparently undescribed — near scvata, Feld. 

 (Venezuela, 1907). The only specimen taken, a $, had a 

 " faint, sweet, tlowery scent." 



ZeptophoMa aripa, Boisd. (Venezuela, 1907). Seven ^ 

 out of 8 examined, had a distinct or even strong scent, 

 which I compared on various occasions to orange, Freesia 

 and mignonette. 



Delias euchar is, Drury (Ceylon, 1908). In India during 

 the winter of 1903-4 I observed the scent of this species 

 and compared it to that of Ganoris rapm, or sweet-briar. 

 On that occasion I made sure of the scent in the ^, and 

 more than suspected its presence in the %* 



My more recent experience enables me to speak with 

 greater confidence. Of 18 ^ examined a scent was de- 

 tected in 17 ; in 4 of these the scent was very slight, or 

 indefinable, but in 12 it was strong, or very strong, and 

 compared to that of sweet-briar. Out of 9 ^ examined 

 in 3 no scent could be detected, but in 6 specimens 

 there was more or less scent, but in no case was it strong ; 

 this was described as " sweet," " dusty or musky," and 

 " faint sweet-briar." Mrs. Longstaff said of the last speci- 

 men " very slight lemon-verbena ; yes, perhaps more like 

 sweet-briar"; but of another specimen she said "it has a 

 little gentle sort of smell, ? ginger, or ? coarse brown sugar." 



Daptonoiira lycimnia, Cram. (Venezuela, Trinidad, 1907). 

 The 3 $ taken all had a strong, sweet, flowery scent, 

 suggesting Freesia. Of 3 ^ one bears the note " rich sweet 

 scent." There is no doubt wliatever about the sex of the 

 individual, neither can I suggest by way of explanation 

 that the note really applies to another individual. This is 

 perhaps the most marked of a very few exceptional cases 

 in which a strong agreeable scent has been observed by 

 me in a female Pierine ; for some time my own view was 

 that in each such instance I bad been deceived — possibly 

 by a neighbouring flower, or by the scent of another 

 butterfly adhering to fingers or forceps. However, in the 

 case of jD. lycimnia Fritz Muller observed that the % during 

 courting emitted from her genitalia an odour which he 

 described as " rather faint, though quite distinct . . . very 

 difierent from that emitted by the wings of the male. 



* Trans. Ent. Soc. Lond., 1905, pp. 87, 91, 101. 



