79 
land, and were very naturally supposed to be that species un- 
til the adults were obtained. 
It would be quite surprising if two species so closely related as 
Xylina antennata and laticincrca evidently are, should have dis- 
tinctly unlike larvae and pup?e ; and it is possible that Slingerland's 
laticincrca larw-e and pupcX were really Tccniocauipa. Dr. William 
Barnes has \'ery lately secured eggs from an undoubted laticincrca 
adult, and reared these again to the adult. He very kindly showed 
me the larvse and sent me some of the pupcT, and they seem ex- 
actly like those of antennata. 
Out of 6 larvae and pupre taken from earth under apple trees at 
Carbondale, 5 were recognized as antennata, and proven to be such 
by rearing; but elsewhere the otlier type — bred by Slingerland to 
laticincrca and by us to Tccniocanipa alia — greatly predominated in 
our cohections. Of 31 pup?s from Flora. Centralia and Olney, 28 
were of this type, the other three being antennata. 
Larv?e of alia were collected May 11, 12, 15 and 22. The date 
of maturing and entering the ground for pupation is recorded as 
May 27 in two different years, and May 24; that of pupation, as 
May 24 (7), 30, and June i, 2 and 7. The interval between enter- 
ing the ground and pupation was 4 to 6 days. No imagos have 
ever been bred or collected by us in fall ; the pupae remained as such 
during the remainder of the season and the winter following, emerg- 
ing in spring. The first adult to appear was probably hastened by 
conditions of rearing; it emerged March 21, and the others appeared 
April 2 and May 14. Adults have been taken by us at lights and 
"sugar" April i, 9. 11. 12, 13. 14, 15 and 29 and ]\Iay 8. 
Fig. 13 Green Fruit-worm, T<xniocampa 
alia, pupa: c, natural size: d. enlarged; e, 
lip of abdomen. (Cornell Experiment Sta- 
tion.) 
The pupa (Fig. 13) is of the usual form, dark chestnut-brown, 
about 15 mm. long, the dorsum terminating at the posterior end in a 
