620 Dr. G. B. Longstaff's Bionomic Notes on Butterflies. 



Fritz Miiller found the latter "rather faint and often 

 hardly distinguishable."* 



Nepheronia ceylanim, Feld. (Ceylon, 1908). The $ of 

 this beautiful butterfly has a more or less distinct scent, 

 which I compared to Freesla. A % had a similar scent, 

 though slight, which my wife compared to frangipani. 



Fluehis agarithe, Boisd. (Tobago, 1907). Of 3 $ ex- 

 amined two yielded a scent noted as being " sweet, neither 

 strong nor pleasant." 



CaUidrjias cvl/ile, Linn. (West Indies, Northern coast 

 of S. America, 1907). In no less than 82 out of the 33 ^ 

 tested a distinct scent was readily perceived, indeed in the 

 great majority of cases it is noted as "strong," twice as 

 " very strong." In quality the scent was agreeable (Mr. 

 Abell termed it " delicious ") and was compared to Ste- 

 phanotis, or Frecsia, but Fritz Miiller f termed it musk- 

 like ; Miss Murtfeldt "slight violet." J With the 22 ? 

 examined the result was very diflerent ; in 9 cases it was 

 negative, but in the remaining 13 a scent was detected, 

 which, though usually described as " very slight," or 

 " slight," and never as " strong," was often distinct enough. 

 In quality the scent of the $ cuhulc was disagreeable ; 

 somewhat sweet, but recalling bad pomade, or rancid 

 butter, or butyric acid (as Dr. Dixey aptly suggested of 

 another butterfly). Fritz Miiller described it as " a very 

 strong peculiar odour, in which some volatile acid seemed 

 to predominate." 



CatopsUia j^omona, Fabr. (Ceylon, 1908). The sweet 

 scent associated with the fringes of the $ was confirmed : § 

 this I compared to Frecsia, or Step)hanotis. Out of 27 $ 

 examined the result was negative in 18, but in the other 

 9 a slight, usually very slight, sweet scent without other 

 special character was noted. 



CatopsUia pi/ranthc, Linn. (Ceylon, 1908). The number 

 of specimens taken was very much smaller than oi pouiona, 

 but the scent was more easily detected in the $ , and 

 more decided in the $ than in that species. || In both 



* Frih Miiller, Trans. Ent. Soc. Lond., 1878, pp. 217, 218. 



t Luc. cit. p. 218. 



X Sciulder, " Butterflies of the Eastern United States," vol. ii, p. 

 1047. 



§ Trans. Ent. Soc. Lend., 1905, pp. 121, 122. 



II For previous experience compare Trans. Ent. Soc. Lond., 1905, 

 pp. 101, 109, 118. 



