306 ENTOMOLOGICAL NEWS 



The above described specimen was taken by Dr. Reagh on 

 the sandy shore of a pond, with full southern exposure, well 

 protected from cold winds by woods and a hill. I, therefore, 

 consider high temperature as the probable cause of this aber- 

 rant form, as in such a locality the intense summer heat could 

 readily act on the chrysalis during its sensitive stage. M'ore- 

 over, similar forms have already been artificially produced by 

 heat in experiments on the related genus Melitaea. 



Heodes hypophlaeas Boisd. f. nov. caeca (Figs. 3 and 4). 



I $ typical, i $ transitional. 



Upper side. Exterior band of black spots on primaries completely 

 wanting, except a faint, minute spot near the costa ; in all other re- 

 spects normal. 



Underside. Spots in exterior band of primaries more or less obso- 

 lete and faint. Exterior band of black spots of secondaries complete- 

 ly wanting, also with the exception of a faint minute spot near the 

 costa. 



The typical specimen was taken by the author May 26, 1912, 

 in a somewhat swampy meadow near the Blue Hills in Massa- 

 chusetts. The transitional form was taken by Mr. Rudolf 

 C. B. Bartsch, May 25, 1912, at West Roxbury, Mass., also in 

 a somewhat swampy meadow. 



Type in the author's collection. Cotype in Mr. Bartsch's 

 collection. 



I use for this form the same name, which has been proposed 

 by Prof. Courvoisier, of Basel (Switzerland), the authority 

 on Lycaenidae, for all the so-called "verarmten Formen" 

 (forma e parvipunctae) of this family, meaning forms with 

 reduced or wanting maculation. In the palaearctic fauna we 

 already know a great number of such forms and the recent 

 description of such a form of the palaearctic Chrysoph. old 

 phron gordiits* is almost identical in- its character with the 

 above described form. 



Malacosoma disstria Hb. f. nov. astriata (Figs. 5 and 6). 

 Upper and lower surfaces of both sets of wings and also thorax and 

 abdomen of a uniform pale, straw-yellow color with no trace of 



* Busse, R. Chrysophanus alciphron rar. gordius f. caeca Courv. 

 Entomol. Zcitschrift XXVI, No. 26, 1912. Frankfurt a-M. 



