8 CIRCULAR 349, U. S. DEPARTMENT OF AGRICULTURE 



from soil 10 to 15 inches above the fruit, but only 1 adult was 

 recovered above the 10-inch level in the packed series/ The packing 

 of the soil undoubtedly had something to do with the failure to find 

 adults at higher levels. The number of adults found in all the pits, 

 compared with the numbei of pup aria collected, is shown in table 7. 



Table 6. — Number and percentages of adults recovered in the same layers of all pits 

 of the packed and unpacked series 



Position of layer 



(distance in inches 



above fruit) 



15 

 14 

 13 

 12 

 11 

 10 

 9_ 

 8_ 



6. 

 5_ 



Unpacked 



Packed 



series 



series 



(7 pits) 



(6 pits) 





Pro- 





Pro- 



Adults 



por- 



Adults 



por- 



recov- 



tion 



recov- 



tion 



ered 



of 



ered 



of 





total 





total 



Num- 



Per- 



Num- 



Per- 



ber 



cent 



ber 



cent 



3 



23 



0.31 

 2.37 







1 



0.33 



28 



2.88 







.00 



20 



2.06 







.00 



24 



2.47 







.00 



26 



2.67 



2 



.66 



40 



4.11 



13 



4.29 



62 



6.38 



20 



6.60 



91 



9.36 



13 



4.29 



105 



10.80 



5 



1.65 



152 



15.64 



37 



12.21 



Position of layer 



(distance in inches 



above fruit) 



4 



3 



2 



1 



2-inch space occu- 

 pied by fruit 



1 inch below bottom 

 of pit 



Total 



Unpacked 

 series 

 (7 pits) 



\dults 

 recov- 

 ered 



Num- 

 ber 

 111 

 87 

 64 

 44 



972 



Pro- 

 por- 

 tion 

 of 



total 



Per- 

 cent 

 18.21 

 8.95 

 6.58 

 4.53 



2.67 



.00 



100. 00 



Packed 

 series 

 (6 pits) 



Adults 

 recov- 

 ered 



Num- 

 ber 

 81 

 31 

 47 

 25 



26 



2 



303 



Pro- 

 por- 

 tion 

 of 

 total 



Per- 

 cent 

 26.73 

 10.23 

 15.51 

 8.25 



8.58 



100.00 



Table 7. — Summary of number of adults and empty puparia recovered from both 



series of burial pits 



Unpacked series 



Packed series 



Depth of pit 

 (inches) 



£- 2 



"&§ 



I* 



Adults 

 emerged 



Adults 

 from 

 soil 



Total 

 adults 



Depth of pit 

 (inches) 



rs 



"ft 08 



Wft 



Total 

 adults i 



18 



Num- 

 ber 

 745 

 650 

 423 

 778 

 373 

 897 

 374 



Num- 

 ber 

 24 

 

 

 

 

 6 

 



Per- 

 cent 

 3.22 

 

 

 

 



.66 

 



Num- 

 ber 



99 

 288 



41 

 339 



21 

 168 



16 



Per- 

 cent 



13.28 



44.30 

 9.69 



43. 57 

 5.63 



18.73 

 4.27 



Num- 

 ber 

 123 

 288 



41 

 339 



21 

 174 



16 



Per- 

 cent 



16.50 



44. 30 

 9.69 



43.57 

 5.63 



19.39 

 4.27 



19 



Num- 

 ber 

 708 

 178 

 312 

 454 

 245 

 556 



Num- 

 ber 

 189 

 46 

 5 

 45 

 

 18 



Per- 

 cent 

 26 69 



22 



22 



25. 84 



23 - 



26 



1.60 



26 .- 



27 



9.91 



26 5 



30 







27 



34 



3.23 



28 .. . 



Total or average- 









Total or average.. 



4,240 



30 



.70 



972 



22.92 



1,002 



23.63 



2,453 



303 



12.35 



All from soil. 



The presence of pupal parasites caused a slight error in computing 

 the number of adults that might be obtained from the puparia found 

 in the pits. This error is negligible because the proportion parasitized 

 was less than 1 percent at the time this work was started. It will be 

 noted that six specimens of the parasite Opius crawfordi Vier. were 

 found in the unpacked* series of pits and none in the packed series 

 (tables 3 and 4). One of the adults was found 18 inches above the 

 fruit and 14 inches above the nearest puparium; another was found 

 16 inches above the fruit and 11 inches above the nearest puparium. 



