Table 6a .--Regression coefficients where time of hatching is related to 
properties of temperature distribution during March 2-June 24 
Regression Coefficients 
Melanoplus species Tag Ta, Tay Ta3 
sanguinipes (early hatching) -- '-0.126285 -0 .029896 -0 .020392 -0 .002009 
sanguinipes (late hatching)--- |- .155716 | - .003799 .001096 .000467 
bivittatus ------------------- - .102086 | - .008109 .000925 | - .000925 
differentialis --------------- - .088386 } - .005039 .001264 i - .000905 
femurrubrum ------------------ - .100526 } - .000499 | .001803 .001777 
Table 6b.--Values of t for testing significance of regression coefficients 
Degrees 
freedom 
Calculated t values of regression coefficients 
Tag Ta al ! Tao Ta3 
t 
Melanoplus species 
sanguinipes (early 
hatching) -------- 4 .58%** 3.77%** | 2.05+ 
sanguinipes (late 
hatching) -------- 2 005 .68 4 .28%% 
bivittatus--------- 6 .63%** wD 1 ie W 
differentialis----- .89 £330 a75 
femurrubrum-------- .09 190+ 1.62 
1/ ** and + = 1- and 10-percent level of significance, respectively. 
en a1t5) a= 
