SOCIETIES. 189 



The Dimorphism of Pigment. — Mr. Sydney Webb's inter- 

 esting record of a variety of Euchloe cardamines, in which the 

 usual orange tips are replaced by clear yellow (Entom. l-'iS), leads 

 me to refer to the third distinct case of dimorphism of animal 

 pigment which has come under my notice. The first pigment is 

 yellow or red, as seen in Zygcena, Arctia, &c. ; the second, white 

 or yellow, as in Pieris, Rumia, &c. ; and the third is well illus- 

 trated by Mr. Webb's variety, having the two forms — orange and 

 yellow — yellow being, as in the other two cases, probably the 

 primitive one. In the North American species of Colias this 

 dimorphism is very plainly seen. C. pldlodice of the Eastern 

 States is yellow, but has its representative further west in the 

 orange C. eurythema, which, nevertheless, shows a tendency to 

 yellow in its forms ariadne, Edw., keewaydin, Edw., and intermedia 

 (n. var.), and has the orange wholly replaced by yellow in the 

 forms eriphyle, Edw., and autumnalis (n. var.). For the variety 

 of Euchloe (or Anthocharis) cardamines, in which the orange is 

 replaced by clear yellow, the name aureoflavescens may be used, 

 as for any other atavisms of this nature. — T. D. A. Cockerell ; 

 West Cliff, Colorado, May 21. 



Botanical Drying Paper.— As all entomologists should also 

 be botanists, it is not out of place to call attention in these pages 

 to Newman's Botanical Drying Paper, which is specially manu- 

 factured for preserving botanical specimens. The new thick kind 

 is very useful, and has the advantage of practically lasting for 

 always. It is far better to use this paper than more ordinary 

 sorts, because with this and the smallest care "black plants" 

 may be avoided, while the true colours of the flowers will be 

 preserved. — Ed. 



SOCIETIES. 



Entomological Society of London. — June Gth, 1888. — 

 Dr. D. Sharp, F.L.S., President, in the chair. Mr. George 

 Meyer Darcis, of 32, Central Hill, Upper Norwood, was elected 

 a Fellow of the Society. Mr. Pascoe brought for exhibition a 

 book of fine plates of Mantidte, drawn by Prof. Westwood, which 

 it had been hoped would have been published by the Ray Society. 

 Mr. E. Saunders exhibited a species of Ilemipteru, MonanUda 



