CURCULIOS THAT ATTACK WALNUT AND HICKORY. 13 
The larvae continue feeding in the nuts for 10 days or 2 weeks after 
they are on the ground and then leave through exit holes made at 
the oviposition scar. 
PUPA. 
The pupa is delicate white, sparsely covered with short bristles, as 
in juglandis and retentus, and is of the same general size and shape 
as the adult. Pupation usually takes place within unlined cells of 
earth an inch or two below the surface of the ground. In a few in- 
stances pupation was found occurring within host nuts that were 
buried beneath damp, fallen leaves. The pupa stage covers a period 
of approximately 30 days. 
ADVLT. 
The adult (PI. VI, A) is reddish brown with a conspicuous broad 
band of a lighter grayish shade behind the middle of the elytra. The 
snout is long, and the general size, shape, and markings of the beetle 
are similar to those of 0. juglandis and 0. retentus. It may be dis- 
tinguished from C. retentus by its more reddish color, the light mark- 
ings on the thorax and elytra often having a pinkish cast, and from 
C. juglandis by the less prominent humps and ridges of the elytra 
and also by the more pronounced reddish shade of the elytral and 
thoracic bands and markings. 
The young beetles issue from the ground from August to October ; 
they have appeared in rearing jars at French Creek, W. Va., from 
August 12 to October 15. Soon after emergence from their pupal 
quarters they go into hibernation and do not reappear until late the 
following spring. 
Oviposition in the latitude of West Virginia begins late in Jane 
and covers a period of at least four weeks. The eggs are laid in cir- 
cular or sometimes crescent-shaped scars on the side of the nut, the 
scars soon taking on a brownish or blackish color and becoming 
rather conspicuous. (PL VT, C.) It has been observed frequently 
that in nuts of Hicoria glabra the oviposition marks are made near 
the point of the nut, while in those of H. ovata the marks are directly 
on the side or near the stem end. Also, beetles developing from nuts 
of H. ovata average larger than those from the nuts of H. glabra. 
The beetles are especially active at nightfall and have been ob- 
served ovipositing after dark. 
NATURAL ENEMIES. 
Xumerous specimens of a parasitic fly were reared in September 
from larva? of this curculio. (PL VI, E.) The species was determined 
by Dr. J. M. Aldrich as Cholomyia longipes Fab. A few specimens 
of another fly determined by Aldrich as Myiophasia globosa Towns, 
were also reared from the larvae. Two hymenopterous species were 
