10 



SPEING BROOD OF MOTHS. 



At Fort Collins moths have been captured out of doors as early as 

 Aj)ril 26, long before apple trees were in bloom. Our earliest records 

 for other portions of the State are as follows: Grand Junction, May 7; 

 Canon City, May 5; Rockyford, May 10. 



Moths from larvae brought into the laboratory during April and 

 Maj' have continued to appear in good numbers to June 2'd at Fort 

 Collins, and moths have continued to appear in cellar breeding cages 

 to Juh' 24. The early larvae and pupae taken at Grand Junction by 

 Mr. Silmon Smith continued to give moths till June 1, those taken 

 at Canon City by Dr. Peare gave moths till June 24, and those taken 

 at Rockyford by Mr. H. H. Griffin emerged till June S. In none of 

 these cases was any special attenii3t made to get the latest ai^pearing 

 moths for the locality. The extreme range in time of appearance of 

 the first brood moths in our cages at Fort Collins in lUOO was 69 days. 



The following table, giving the dates at which the codling moth 

 appears in its different stages in different parts of Colorado and in 

 some other States, may be of interest for comparison, although there 

 are many blanks that can not be filled at present : 



Table I. — Dates of transformations of the codling moth in different places. 



Locality. 



Moths 

 of first 

 brood, 

 date of 

 emer- 

 gence. 



Apr. 24 

 May 7 

 May 10 

 May 



Mesilla Park, iST. Mex 



Grand Junction, Colo ... 



Rockyford , Colo 



Canon City. Colo 



Corvallis, Oreg I May 16 



Xevr Brunswick, N. J 



Morgautown, W. Va 



Ithaca, X.Y.. 'May 3 



Lincoln. Nebr | May — 



Denver. Colo I 



Fort Collins. Colo -...' May 5 



St. Louis, Mo May 7 



Northern Illinois May 12 



Eggs of first 

 brood. 



First. 



Most 

 common. 



Larvae of first 

 brood. 



First. 



Most 

 conimoii 



May 4 --.- j May -31 



May 18 June 5 



June 15 



June 20 



June 26 

 June 3 



June 9 July 3 



Julv 

 .-.-do. 



.do. 



July 20 

 June 27 

 Julv 1 

 June ai 

 July 3 

 June 28 

 June 23 



Julv 21 

 Julv 25 

 JulV S 





Moths of second 

 brood. 



Eggs of Larvte of second 

 second ^Tood. 





Locality. 



First. 



Last. 



Tost ,i„3^ -^"'>^°"'>-- 



MesiilaPark.X.Mex 



June 26 

 June 28 

 July 5 

 I Jvily 15 

 Aug. 1 







T.D. A.Cockerell. 



Grand Junction. Colo 



Sept. 12 

 Sept. 15 

 Sept. 10 

 Sept. 15 



Julv 23 



Aug. 15 

 Aug. 20 



Silmon Smith. 



Rockvford.Colo 



Aug 6 



H.H.Griflin. 



Canon City. Colo 



.- Aug. 1 



R.J. Peare. 



Corvallis, Oreg 



New Briiuswick. N. J 





F. L. Washburn 





;::::::;;: 



and A. B. Cordlev. 

 J. B. Smith. 

 A. D. Hopkins. 



Ithaca. NY 



Lincoln. Nebr 



July ""2" 









M. V. Sliugerkmd. 

 F. W. Card. 



Denver. Colo 







Sept. 5 

 Sept. 12 



David Brothers. 



Fort Collins. Colo 



July 13 

 ■^July 8 

 July 15 



Sept. \Z 



Aug. 12 Aug. 3 

 Aug. — 



C.P.Gillette. 



St. Louis, Mo 



C. V. Rilev. 3 



Northern Illinois 









W. Le Baron. 











On or before. 



^ Estimated by writer. 



First Missouri report. 



