﻿28 



BULLETIN 19, IT. S. DEPARTMENT OE AGRICULTURE. 



Table XI. — Length of each of the Jive nymphal stages of the grape leaf hopper for 114 

 nymphs recorded from June 22 to October 13, 1912 — Continued. 



1912. 

 July 10 



Do... 

 Julv 11 



Do... 



Do... 



Do'. . . 

 Do... 

 Do... 



July 12 

 Do... 



Do... 

 July 13 



Do... 



Do... 

 July 14 



Do... 

 Do... 

 July 15 

 Do... 

 Do... 



July 18 

 Do... 

 Do... 

 Do.. 



July 19 



Do... 

 Do... 

 Do... 

 Do... 

 Do... 



July 20 

 Do... 



July 29 

 Do... 

 Do... 



Do... 

 Do... 

 Do... 



July 30 

 Do... 



Do... 



Do... 



Aug. 5 



Do.. 



Aug. 13 



Do.. 

 Do.. 

 Do.. 

 Aug. 14 

 Do.. 



Do.. 

 Do.. 

 Do.. 

 Do.. 



Do.. 



Do.. 

 Do.. 

 Do.. 

 Do.. 

 Do.. 



1912. 

 July 14 



..do 



July 15 



..do 



July 16 



July 15 



..do 



July 14 

 July 17 

 July 16 



July 17 

 July 19 

 July 17 

 July 19 

 ..do 



July 21 



July 19 



July 22 



July 21 



July 20 



July 25 

 ..do.... 



Aug. 2 

 July 25 

 July 29 



July 24 



July 27 



July 26 



July 25 



July 28 



July 27 



July 26 



Aug. 8 



Aug. 7 



Aug. 5 



Aug. 7 

 Aug. 8 

 Aug. 6 

 Aug. 11 

 Aug. 7 



Aug. 9 

 ...do.... 

 Aug. 11 

 ..do.... 

 Aug. 19 



Aug. 18 



Aug. 21 



Aug. 18 



Aug. 20 



Aug. 19 



Aug. 20 

 ...do.... 

 ...do.... 



Aug. 19 

 Aug. 20 



Aug. 19 

 Aug. 20 

 ...do.... 



Aug. 19 

 Aug. 24 



Dys. 

 4 

 4 

 4 

 4 

 5 



4 

 4 

 3 

 5 

 4 



1912. 

 July 18 

 July 17 

 July 19 



..do 



..do 



..do 



..do 



July 18 

 July 20 

 July 21 



..do..... 

 July 23 

 July 21 

 July 23 

 July 25 



July 27 

 July 25 

 ..do.... 

 ..do.... 

 July 26 



Aug. 2 



July 29 



Aug. 7 



July 30 



Aug. 6 



July 27 

 Aug. 3 

 ...do.... 

 ...do.... 

 Aug. 6 



July 29 

 Aug. 3 

 Aug. 11 

 ...do.... 

 Aug. 10 



Aug. 11 



Aug. 12 



Aug. 11 



Aug. 14 



Aug. 11 



Aug. 14 

 Aug. 12 

 Aug. 15 

 ...do.... 

 Aug. 23 



...do.... 

 ...do.... 

 Aug. 22 

 Aug. 25 

 Aug. 24 



...do.... 

 ...do.... 

 ...do.... 



Aug. 23 

 Aug. 24 



Aug. 23 

 Aug. 25 

 Aug. 26 

 Aug. 23 

 Aug. 29 



Dys. 



4 

 3 

 4 

 4 

 3 



4 

 4 

 4 

 3 

 5 



4 

 4 

 4 

 4 

 6 



6 

 6 

 3 

 4 



1912. 

 July 23 

 July 19 

 July 24 



..do 



July 25 



..do 



..do 



July 23 

 July 26 

 ..do 



July 30 



July 29 



July 26 



July 29 



July 30 



Aug. 4 

 Aug. 1 

 Aug. 5 

 Aug. 2 

 ..do.... 



Aug. 8 

 Aug. 6 

 Aug. 9 

 Aug. 8 

 Aug. 11 



Aug. 3 

 Aug. 9 

 ..do... 

 ...do.... 

 Aug. 12 



Aug. 3 

 Aug. 9 

 Aug. 15 

 Aug. 17 

 Aug. 14 



Aug. 15 

 Aug. 16 

 ...do.... 

 Aug. 20 

 Aug. 15 



Aug. 19 

 Aug. 17 

 Aug. 20 

 ...do.... 

 Aug. 27 



...do.... 

 Aug. 29 

 Aug. 26 

 Aug. 31 

 Aug. 28 



Aug. 29 

 Aug. 28 

 ...do.... 

 Aug. 27 

 Aug. 29 



Aug. 27 

 Aug. 29 

 Sept. 2 

 Aug. 27 

 Sept. 2 



Dys. 

 5 

 2 

 5 

 5 

 6 



6 

 6 

 5 

 6 

 5 



9 

 6 

 5 

 6 

 5 



1912. 

 July 30 

 July 25 

 July 30 



..do 



Aug. 2 



Aug. 1 

 Aug. 3 

 July 30 

 Aug. 4 

 July 30 



Aug. 7 

 ..do.... 

 Aug. 2 

 Aug. 7 

 Aug. 9 



Aug. 10 

 ..do.... 

 Aug. 11 

 Aug. 10 

 ..do.... 



Aug. 14 

 Aug. 11 

 Aug. 15 

 Aug. 13 

 Aug. 15 



Aug. 9 

 Aug. 15 

 ...do.... 

 Aug. 14 

 Aug. 15 



Aug. 9 

 Aug. 14 

 Aug. 21 

 Aug. 22 

 Aug. 21 



...do.... 

 Aug. 22 

 ...do.... 

 Aug. 25 

 Aug. 21 



Aug. 25 

 Aug. 22 

 Aug. 25 

 ...do.... 

 Sept. 2 



Aug. 29 

 Sept. 3 

 Sept. 2 

 Sept. 4 

 Sept. 3 



Sept. 

 Sept. 

 Sept. 

 Sept. 

 Sept. 



Sept. 

 Sept. 

 Sept. 

 Sept. 



Dys. 



7 

 6 

 6 



Eh 



1912. 

 Aug. 11 

 Aug. 14 

 Aug. 12 



...do 



Aug. 13 



Aug. 12 



Aug. 13 



Aug. 10 



Aug. 13 



Aug. 15 



Aug. 14 



Aug. 15 



Aug. 12 



Aug. 15 



Aug. 17 



Aug. 19 

 ..do.... 

 Aug. 21 

 Aug. 19 

 ..do.... 



Aug. 22 



Aug. 20 



Aug. 24 



Aug. 22 



Aug. 25 



Aug. 15 

 Aug. 23 

 Aug. 24 

 Aug. 23 

 Aug. 25 



Aug. 23 

 Aug. 24 

 Aug. 31 

 Sept. 1 

 Aug. 29 



Aug. 30 

 Sept. 1 

 ...do.... 

 Sept. 3 

 Aug. 30 



Sept. 2 



Se.pt. 1 



Sept. 5 



Sept. 3 



Sept. 8 



Sept. 9 

 Sept. 10 

 Sept. 8 

 Sept. 11 

 Sept. 9 



Sept. 10 

 Sept. 11 

 Sept. 9 

 Sept. 8 

 Sept. 9 



...do.... 

 ...do.... 



Sept. 14 

 Sept. 9 

 Sept. 10 



Dys. 

 12 

 20 

 13 

 13 

 11 



11 

 10 

 11 



Dys. 

 32 

 35 

 32 

 32 

 33 



32 

 33 

 30 

 32 

 34 



33 

 33 

 30 

 33 

 34 



36 

 37 

 37 

 35 

 35 



35 

 33 

 37 

 35 

 37 



27 

 35 

 36 

 35 

 36 



34 

 35 

 33 

 34 

 31 



32 

 34 

 34 

 35 

 31 



34 

 33 

 31 

 29 

 26 



27 



28 





°F. 

 69.81 

 69.86 

 69.58 

 69.58 

 69.69 



69.58 

 69.69 

 69.62 

 69.75 

 69.32 



69.42 

 67.14 

 69.08 

 69.10 

 68.75 



68.63 

 66.77 

 68.36 

 68.34 

 68.34 



67.67 

 67.79 

 67.71 

 67.84 

 67.92 



68.77 

 67.84 

 67.71 

 67.84 

 69.81 



67.79 

 67.66 

 67.53 

 67.73 

 69.03 



67.84 

 67.73 

 67.73 

 68.16 

 67.68 



67.95 

 67.68 

 69.95 

 68.55 

 71.52 



71.41 



71.55 

 71.52 

 71.75 

 71.33 



71.48 

 71.75 

 71.33 

 71.44 

 71.33 



71.33 

 71.33 

 71.24 

 71.33 



71.48 



