228 
Psyche 
[December 
found on the dorsal surface of the head. By these characteristics 
it is readily distinguished from the moth larva. 
Before pupating the larva forms a silken web of loose texture 
within the cell of Lophoptilus. It is within this silken network 
that the pupa is formed and remains until it emerges as the 
imago through the stalk. The pupa is 7 . 5 to 8 millimeters long 
and 1 . 5 millimeters broad. 
C BAD 
Fig 1. A, Dorsallview of larva of Epiurus pterophori Ashmead; B, Lateral view of larva 
showing normal curved position; C, Longitudinal section of stalk of Oenothera 
la marckiana showing:- a. Larva in web of silk within cell; b. Head capsule of 
Lophoptilus eloisella ; c. Silken web; d. Partition; e, Frass deposit in pith cavity 
of stalk ;/./,^Pith cavity. 
Larvae were found in stalks collected and examined through- 
out March and April. The first pupa was found within the 
stalk March 22nd from material which had been inside the 
laboratory for a week. Pupae were found to exhibit a great deal 
of activity; some were able to turn their bodies completely over 
within the cell. 
The first adult was found March 29th in a stalk that had 
previous^ been slit open to show the larvae. The insect was 
