Table 4. Number of live one- and two-year male and female offspring of Osmia californica reared from two sites in two years. 
Offspring grouped as in Table 1. SR = sex ratio. Number of dead cells shown in parenthesis next to total live cells. 
No. No. 1-yr. No. 2-yr. No. 
Site, year and nest type nests $ $ SR $ 9 SR cells 
Faust 1979 
1982] 
Torchio & Tepedino — Osmia Bees 
229 
I " 
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fN rd fN 
© oo 
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r. O' n 
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sq sO 
Tf rn 
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o sd 
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fN | m 
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Of 
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B 
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C« 
B 
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•“ O' 
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S — (N E 
s 
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oo 
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f ^ 
<U — fN 
s 
mixed 39 61 21 2.9 49 47 1.0 178 
totals 97 92 40 2.3 198 118 1.7 448(344) 
totals both forms SS 290, 99 1 58, SR 1 .84 
