CODLING MOTH IN COLORADO. 



89 



sarily follow from this that the moth naturally migrates to any con- 

 siderable extent. 



Table LXIV. — Flight records of the codling moth, Grand Junction, Colo., 1915. 



Moth 

 No. 



Sex of 

 moth. 



Date of 

 flight. 



Actual 

 distance 

 between 

 starting 



and 

 finishing 



points. 



Esti- 

 mated 

 distance 

 of flight 

 between 

 starting 



and 

 finishing 

 points. 



Remarks. 



1 



2 

 3 



4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 

 35 





June 11 

 ...do 



Feet. 

 1C5 

 120 

 360 

 138 

 189 

 840 

 600 

 420 

 180 

 390 

 579 

 249 

 715 

 294 

 135 

 276 

 180 

 717 

 507 

 102 

 699 



1,035 

 910 

 595 

 336 

 150 



1,155 



1,344 

 117 

 590 

 792 



1,356 

 747 

 789 

 423 



Feet. 



In two flights. 



Lost from view. 



Dropped to ground; when released, flew from sight. 



On wing 2 minutes, then lost from view. 



Do. 

 On wing 5 minutes, then lost from view. 

 On wing 74 minutes, then lost from view. 

 In two flights, on wing 64 minutes, then lost from view. 

 Flew out of sight. 



On wing 3 minutes, then lost from view. 

 On wing 4 minutes, then lost from view. 

 On wing 1 minute, then lost from view. 

 On wing 1J minutes, then lost from view; swift flier. 

 On wing if minutes, then lost from view. 

 Dropped to bushes. 



On wing 1£ minutes, dropped to bushes. 

 On wing 2 "minutes, then lost from view. 

 On wing 24 minutes, then lost from view. 

 Very erratic; exhausted after 6-minute flight. 

 Dropped to bushes. 

 On wing 2 minutes. 



On wing 64 minutes, then lost from view 

 Lost from view. 

 On wing 2 minutes. 

 On wing 1 minute. 



On wing 4 minutes, then lost from view 



In two flights. 



Dropped to ground, apparently exhausted 



In two flights, on wing 2 minutes. 



In three nights, on wing 1J minutes. 







...do.... 

 do 



...do 



.. do .. 



720 



Female . 



...do 



...do 



...do 



...do 



...do.... 



...do 



...do 



...do.... 



...do 



June 17 

 ...do 





2,500 

 1,800 

 1,200 



600 

 750 







.. do 



Female . 

 ., do 



June 24 

 ...do 







...do... 



...do... 





. do .. 



...do... 





...do.... 

 ...do.... 



...do.... 



...do 



.. do.. 



350 

 1,000 



...do.... 



July 27 





749 

 3,000 



Female . 



...do 



...do... 



...do 



...do 



...do... 





Male . . 



.. do... 





...do 



Female - 



Female . 



...do.... 

 ...do.... 



do 



July 29 

 .. do... 













Female . 



...do 



. . do. . . 







Female . 



Aug. 3 

 .. do.. 







Female . 



...do 







TIME OF COPULATION. 



Observations of the time of copulation of the codling moth were 

 taken during the seasons of 1915 and 1916. (See PL I, B.) The 

 data for 1916 are more extensive than those for the preceding year. 

 No attempt was made to watch the moths closely at all times, but 

 instead they were examined at intervals to note if they had separated. 



In 1915 the following records were secured : 



Moths of the spring brood. — May 30, one pair found in copula 

 at 7 p. m. ; June 8, one at 6.50 a. m. ; June 9, one at 6.45 a. m., and 

 another pair at 7 a. m. 



Moths of the first brood. — The data for moths of this brood are 

 presented in Table LXV. 



