12 THE LEPIDOPTERIST 



Catocala arnica Hb. subspecies 

 novangliae Reiff. 



Plate II. Fig. 1 3 Fig. 2 9 

 Lepidoptera — Heterocera 



By IVilliam Reiff Jamaica Plain, Mass. 



To all our advanced collectors of Lepidoptera the 

 little Catocala arnica Hubner is well known. The 

 species is found abundantly in the southern part of 

 New York, in New Jersey and Pennsylvania and per- 

 haps not quite so often in the southern Atlantic States* 

 in Texas, Arkansas and adjacent territories. Side by 

 side with arnica specimens from all these various 

 localities there are placed in collections under the same 

 name specimens from the New England States which 

 bear a resemblance to amica but which are something 

 else. When in 1909 I found the first specimens in Mas- 

 sachusetts, I could not help noticing the strong differ- 

 ence in color of primaries as compared with those I 

 used to find in New York and New Jersey. A batch 

 of eggs which I secured from one of the Massachu- 

 setts specimens was sent to my friend E. M. Dadd in 

 Germany, a recognized authority in Catocalae, and at 

 the same time I wrote him my observations concerning 

 the adults. Mr. Dadd compared the eggs with those he 

 received from places outside of New England and he 

 succeeded in breeding the larvae. He informed me 

 that there is a noticeable difference both in the 

 egg and in the larval-stages and that at least the 

 Massachusetts specimens are not amica Hb. 



Upon the discoveries made by Mr. Dadd and 

 upon my own observations, I consider it wise to sep- 

 arate the New England specimens from amica Hb. 

 by making them a subspecies to the type amica Hb. 



My own observations regarding the preparatory-^ 

 stages are very meagre, as I have not as yet bred the 

 caterpillar, and I have no detailed report from Mr. 

 Dadd to refer to. For the present, therefore, I have to 

 limit the description of the subspecies to egg and adult. 



Egg. An elongated oval, longer than high. Longest 

 horizontal diameter 0.7 mm., shortest horizontal di- 

 ameter 0.5 mm., vertical diameter 0.2 mm. Base flat- 



