+ Annals Entomological Society of America __[Vol. VII, 
since the larva emerges from the opposite pole, and as already 
indicated it serves as an appendage for attaching the egg to 
the bud scale. 
As will be seen later the eggs of the Chalcids are flask- 
shaped, (Figs. 31, 32 and 37, Pl. IV), but here the elongate 
portion is in reality the cephalic portion of the egg. This is 
shown by the fact that the egg is oriented in the ovum in 
such a way that the elongate portion is cephalad, also that 
the larva always emerges at the base of the neck (Figs. 32 
and 37, Pl. IV). This therefore, is exactly opposite to the 
condition found in Dryophanta erinacet. 
Buds were examined on the eighth of May and the 
unhatched eggs found were very turgid, appearing slightly 
enlarged. On the twelfth of May a slight swelling, at the 
apex of which an empty egg shell was visible, appeared on the 
lower green portion of the scale, (Fig. 9, Pl. II). This proved 
to be a freshly formed gall, containing a young larva of 
Dryophanta erinacei. The gall at this stage was thin-walled, 
with a pebbled surface, greenish in color, and contained a 
watery fluid. The egg-shell remains attached to the apex 
of the gall until the latter has reached considerable size, when 
it dries up and disappears. These hypertrophies develop 
rapidly, as many as three appearing on one scale. The wall 
of the gall has by this time changed to a yellowish brown 
color, and soon becomes quite dry and brittle. 
Galls also develop on the apical portion of the leaf and flower 
buds, (Fig. 10, Pl. II). These are red, being similar in color 
to the young leaf and flower. The wall is pebbled on the 
surface, and thin. The cavity contains a single larva bathed 
in a watery fluid, and similar in all respects to the one inhabiting 
the scale gall. The terminal galls are of the same size as 
those on the scales, varying in number from one to four, and 
when mature are reddish brown. Since only the agamic 
form of Dryophanta erinacei was found ovipositing on the 
leaf and flower buds, and since the eggs of this species and no 
other were found in the leaf and flower region, and since males 
and females similar in size and character emerge from the 
two galls, it is evident that they are produced by the same 
insect. The difference in color in the galls is due to the normal 
difference of the tissue of which they are formed. 
