﻿THE MTOMOLOGICÄL UmkZlM 



Vol. IL] OCTOBER, 1916. |Pt. III. 



昆蟲 學雜誌 第貳卷 第參號 



論 說 



ON SOME EXAMPLES OF ABERRANT FORMS 

 OE JAPANESE BUTTERFLIES. 



BY I. SUGITANl, Rigakushi, F. E. S. JAP. 

 本邦 產蝶類 異常 形 の數例 



理學士 杉 谷 岩 S 大日 本昆蟲 學會々 垦 



As I have delineated some aoerrant forms of Japanese butterflies 

 in the accompanying colored plate, I want here to give a short 

 description about them. 



1. Papilio sarpedon L. ab (pi. v. Fig. i 



§ This is an aberrant form of P. sarpedon L. var. nipponus 

 Frühst. , one of the common papilios in Japan. 



The only difference of this specimen from the typical one is the 

 appearance of a green spot (5x2 mm.) placed near the end of the dis- 

 coidal cell and parallel to the median nervure of the primaries. 



The secondaries are heavily damaged, but so far as the specimen 

 appears, there is no more abnormality at all. 



Length ^ 20 mm., exp. 6T mm. 



Hab. Osaka, collected by Mr. T. Esaki (April, 1915) and kindly- 

 presented to my cabinet. 



Remark. The medial band of this species is considerably variable, 

 but in the above specimen the case is quite different, and it will be a 

 remarkable one. 



2, Neptis aceris Lep. ab. (pi. v, Fig. 2 め. 



? Coloration similar to N. aceris, but it differs from the type 

 specimen as follows : 一 



