48 BULLETIN 885, U. S. DEPARTMENT OF AGRICULTURE. 
Remarks : 
May 16 — Two males and two females emerged. One female unable to 
free itself from pupal skin. Died. 
May 17 — Two males and one female emerged . One male died in attempts 
to free itself from pupal skin. 
May 18 — No observations. 
May 19 — One male and one female emerged. One male and one female 
died in attempting to emerge on May 18 (?). Leaves 
thoroughly dried out. They were very dry May 15. 
May 20 — Xo emergence. A blotter was moistened with water and two 
drops of phenol put on it before it was placed in petri dish 
with leaves. 
May 21 — Xo emergence. A number of pupae looked normal, and further 
emergence was considered possible. 
May 27 — Entire lot of leaves moldy. Xo further emergence, hence whole 
lot discarded and experiment finished. 
EXPERIMENT NO. 2. 
Started May 28, 1919— Pupal stage (early). 
Number of leaves — -Six, placed in petri dish, covered. 
Number of pupae — 200 females, 50 males. Xo previous emergence. 
Remarks : 
June 4 — Leaves drying out, but not thoroughly dry. Xo emergence. 
June 6 — Leaves thoroughly dry. No emergence. 
June 13 — Xo emergence. 
June 15 — Xo emergence. 
June 17 — Pupae carefully examined. Shriveled. All dead. Experi- 
ment discontinued. 
EXPERIMENT NO. 3. 
Number of pupae — 23 males and 32 females. 
Leaves kept from May 11, 1919, to June 26, 1919, in bottle of water. 
Remarks : 
June 26 — One male emerged. Leaves badly wilted since June 23. 
June 30 — One male emerged. 
July 4 — One male emerged. Shoot all dried up, barely moist; leaves 
removed and put in covered petri dish for further observa- 
tion. 
July 5 — One female died in process of emergence. Moisture added to 
petri dish. 
July 6 — One female died in process of emergence. 
July 8 — One female emerged. One female died in process of emergence. 
Leaves thoroughly dried out. 
July 9 — Leaves thoroughly dried. No further emergence. All pupae 
examined and dead. Experiment discontinued. 
EXPERIMENT NO. 4. 
Number of pupae — 35 females and 46 males. Brought in from field. 15 males 
and 2 females had already emerged. 
Started June 5, 1919 — Put in petri dish. 
Remarks: 
June 6 — Four females and three males emerged. All in the morning. 
June 7 — Four females and two males emerged. All in the morning. 
June 8 — One female emerged in morning. 
