30 Psyche [February 
surface of the ground under dry leaves, without the preparation of any 
sort of a cocoon. ‘The cremaster of the pupa is composed of about 
twenty-five strong brown spines with curved apices (see figure). In 
other respects, the form and color of the pupa are the same as those of 
maia; the size of lucina, however, always remains less. The first 
moths emerged from their pupae on the 2nd of September, and proved 
to be two males of Hemileuca lucina Hy. Edw. The first females 
emerged on the 4th of September, and the period of emergence extended 
almost through the entire month, the last 
adults appearing on September 28. In all 
sixty-three moths were obtained, in the pro- 
portion of 2:1.3 or about twice as many 
males as females. No parasites were ob- 
tained although six pupae died. 
Henry Edwards states in his description 
of the form /Jucina (Entomologica Ameri- 
cana, Vol. II, No. 1, p. 14, April 1886) that 
the white band which encloses the discal 
spot is of equal width across the entire wing. 

Fig. 1. Cremaster of This is not the case, however, as this char- 
Hemileuca lucina Hy. 5 A 
Edw. acter is the one which shows the greatest 
: range of variation. I have before me a 
large number of specimens in which the 
discal spot is bordered with white only near the fore and hind 
margins, the white being so much reduced in size that it is di- 
vided into two parts by the spot. The most extreme form, of which 
I have one male and one female specimen, has the white band wedge- 
shaped and pointed toward the discal spot, above which it shows 
only as a slight light shadow. Since such extremes of variation in 
the direction of aberrations undoubtedly deserve names, I propose 
the name ab. obsoleta for this form of H. lucina with the following 
diagnosis: 
Ab. obsoleta m.: alis ant. fascia candida plus minusve obsoleta. Types 1 
6’, 1 9, in the collection of the Bussey Institution. 
The white band varies in another direction also, and both on the 
fore as well as on the hind wings. ‘The white band may become 
cream yellow for its entire extent, the black ground color becoming 
at the same time changed to a gray, perhaps through some albinistic 
