44 BULLETIN 216., U. S. DEPARTMENT OF AGRICULTURE. 



Table IV. — Records of molts of Macrosiphum r pisi. La Fayette, Ind., 1912. 



Date of first molt. 



Period 



be- 

 tween 

 birth 

 and 

 first 

 molt. 



Date of second molt. 



Period 



be- 

 tween 

 first 

 and 

 second 

 molts. 



Date of third molt. 



Period 



be- 

 tween 

 second 



and 

 third 

 molts. 



1911. 



11.00 a. m., Aug. 14 

 1.00 p. m., Aug. 14. 

 11.00 a. m., Aug. 14 

 3.30 p.m., Aug. 14. 

 3.00 p.m., Aug. 14. 

 4.30 p.m., Aug. 14. 

 4.30 p.m., Aug. 14. 

 6.00 p.m., Aug. 14. 

 9.00 a. m., Aug. 15. 

 9.45a. m., Aug. 15 1 

 10.00 a. m., Aug. 15 

 10.15 a. m., Aug. 15 

 4.30 p.m., Aug. 18. 

 4.30 p.m., Aug. 18. 

 5.00 p.m., Aug. 18. 

 10.00 a. m., Aug. 19 

 10.00 a. m., Aug. 19 

 1.00 p.m., Aug. 22. 



1913. 



Apr. 32 : 



Apr. 2 - 



Mar. 313 



7.30 p. m., Aug. 15. . 

 5.30 a. m., Aug. 16.. 

 8.00 a. m., Aug. 16.. 

 5.30 a. m., Aug. 16.. 

 5.30 a. m., Aug. 16.. 

 12.00 m., Aug. 16... 

 12.00 m., Aug. 16... 

 12.00 m., Aug. 16... 

 5.15 a. m., Aug. 17.. 

 5.15 a. m., Aug. 17.. 

 5.15a. m., Aug. 17.. 

 6.00 a. m., Aug. 17.. 

 1.00p.m., Aug. 20.. 

 5.30 a. m., Aug. 20.. 

 10.00 a. m., Aug. 20. 

 7.45p.m., Aug. 20.. 

 5.30 a. m., Aug. 21.. 

 9.45 a. m., Aug. 24.. 



Apr. 4 

 Apr. 4 

 Apr. 5 



Hours. 

 324 



m 



45" 



3S 



3S4 



434 



43? 



42" 



441 



434 



43i 



43| 



444 



37" 



41 



33| 



434 



44 1 



Days. 

 1 

 2 



11.30 a. m. 

 1.30 p.m., 

 Died 



7.00 p.m., 

 4.30 p.m., 

 5.30 p.m., 

 9.00 a.m., 

 7.00 p.m., 

 5.30 a.m., 

 6.30 a.m., 

 5.30 a. m., 

 9.00 a.m., 

 11.45 a. m. 

 4.45p. m., 

 7.15 a.m., 

 6.15 a. m., 

 5.45 p. m., 

 5.30 a. m., 



, Aug 17. 

 Aug. 17. 



Hours. 

 40 

 32 



Died... 

 ....do. 



Hours. 



Aug. 17.. 

 Aug. 17.. 

 Aug. 17.. 

 Aug. 18. . 

 Aug. 17.. 

 Aug. 18. . 

 Aug. 18.. 

 Aug. 18. . 

 Aug. 18. . 

 ,Aug. 22. 

 Aug. 22.. 

 Aug. 23.. 

 Aug. 22. . 

 Aug. 22.. 

 Aug. 25.. 



Apr. 7.. 

 Apr. 7 . . 

 Apr. 16. 



374 



35" 



29J 



45 



31 



24i 



254. 



24i 



27 



46f 



59J 



69-i 



344 



364. 



191 



Days. 

 3 

 3 

 11 



5.30 a. m., 

 5.30 a. m., 

 5.30 a. m., 

 5.30 a. m., 

 5.30 a.m., 

 11.30 a.m. 

 2.30 p.m., 

 2.30 p.m., 

 3.30 p.m., 

 3.30 p.m., 

 5.30 p.m., 



Died 



5.15 a. m., 

 7.30 a. m., 

 Aug. 27... 



Aug. 19. 

 Aug. 19. 

 Aug. 19. 

 Aug. 20. 

 Aug. 19. 

 , Aug. 19 

 Aug. 19. 

 Aug. 19. 

 Aug. 19. 

 Aug. 24. 

 Aug. 25. 



34§ 

 37 



48 



44} 



3!4 



30 



32 



33 



30} 



51! 



72| 



Aug. 24. 

 Aug. 24. 



47 

 37J 



Apr. 9. 



Days. 

 2 



Apr. 19. 





Date of fourth molt. 



Period 



between 



third and 



fourth 



molts. 



Date of first young. 



Period 

 between 



fourth 



molt and 



birth of 



first 



young. 



Entire 

 immature 



period 

 (approxi- 

 mate). 



1912. 

 11 00 a. m., Aug. 14 





Hours. 





Hours. 



Days. 



1 00 p.m., Aug. 14 













11.00 a. m. , Aug. 14 













3.30 p.m., Aug. 14 



4.30 p.m., Aug. 14 



4.30p.m., Aug. 14 



6.00 p.m., Aug. 14 



9.00 a.m., Aug. 15 



9.45 a. m. , Aug. 15 



10.00a. m., Aug. 15 



10.15 a.m., Aug. 15 



4.30 p.m., Aug. 18 



4.30 p.m., Aug. 18 



5.00 p.m., Aug. 18 



Removed for descrip- 

 tion. 



5.00p.m., Aug. 20 

 1.00 p.m., Aug. 22 . 



7.45 p.m., Aug. 20 



5.30 a . m. , Aug. 21 

 8.00 a. m., Aug. 22 

 1.00p.m., Aug. 21 



1.45 p.m., Aug. 21 



2.15 p.m., Aug. 26 

 Died 











48 



234 



314 



381- 



42 



65} 



46} 



461 



46J 



5.15 a. m., Aug. 22 



5.15 a. m., Aug. 22 



6.00 a. m., Aug. 23 



5.15 a. m., Aug. 22 



1.00p.m., Aug. 22 

 6.00 p.m., Aug. 24 

 1.00p.m., Aug. 23 

 4.00 p.m., Aug. 23 

 Aug. 28 



23 J 



361 



17 



334 



314 



58 



48 



501 



7i 



7} 

 7} 

 7} 

 Vi 

 9J 

 8| 

 8* 

 9+ 



















10.00a. m., Aug. 19 



10.00a. m., Aug. 19 



1.00 p.m., Aug. 22 



1913. 



Apr. 2'- 



Removed for descrip- 

 tion. 

 8.15 a. m., Aug. 26 

 Aug. 29 











48J 







8+ 



Aug. 30 





s 



Apr. 11 



Days. 

 2 



Apr. 14 





11 



Apr. l! 







15 



Mar. 31 s... 



A l.r. 23 



4 



Apr. 24 





24 













1 Winged female; all others wingless. 



2 Records by Gibson at Nashville, Term., in 1913. 



3 Hatched from egg. 



