60 IXSECT ENEMIES OF THE BOLL WEE\^L. 



Table XX. — Lengths of developmental periods of the holl-iveevil parasites. 



Species and period. 



June. 



July. 



August. 



Sep- 

 tember 



October 

 1-15. 



October 

 1&-30. 



Novem- 

 ber. 



Decem- 

 ber. 



Hicrobra^on mellitor: 



Egg and larva 



Days. 

 13-19 

 2-8 

 21+ 



Days. 



6-8 

 5-7 

 13+ 



Days. 

 10-15 

 3-8 



18+ 



Days. 

 6-10 



4-8 

 14+ 



Days. 

 6-20 

 10-26 

 30+ 



20+ 



14+ 

 34+ 



8-25+ 

 8-22 

 1^33+ 



20-40 



13 



33-53 



Days. 



9+ 

 141-147 

 150+ 



Days. 



Days. 



118+ 



Pupa 





14+ 

 132+ 



70+ 

 15+ 



85+ 



70+ 



Total 



156+ 



21+ 

 13+ 

 34-138+ 



Habrocytus piercei: 



Egg and larva 



Pupa 













Total 













Catolaccm Mnteri: 



Egg and larva ; 



9-14+ 

 6-11 

 20+ 



9-10+ 

 7-8 

 17+ 



14-17+ 



4r-7 



21+ 



9-12+ 

 6-9 

 18+ 



9-12+ 

 5-7 

 16-17 



5-11+ 

 6-8 

 13-15 



13-15 



6-8 

 21+ 



9-12+ 

 (^9 



18+ 





Pupa 





7-12 

 16+ 



15+ 

 85+ 



Total.. 





Catolaccus incertus: 



Egg and larva 







Pupa 









Total 





67+ 





Cerambi/cobius sp. : 



Egg and larva 





65+ 



Pupa 

















18+ 



Total . . 

















83+ 



Cerambycobius cushmani: 



Egg and larva 





13+ 



3+ 

 16+ 



f^9 

 10-13 

 19+ 



11-16+ 

 4-9 



20+ 



4-10+ 

 6-12 

 16+ 



16+ 

 -12 



28+ 



15-19 

 7-11 



26+ 



7-11+ 

 7-11 

 18+ 



16-20 

 8-12 



28+ 























Total... 













Cerambycobius cyaniceps: 

 Egg and larva 



10+ 

 9+ 

 19+ 



18+ 

 7+ 

 25+ 







84-113 



Pupa 







10-37 



Total 



129+ 



139+ 



121-150 



Ennyomma globosa: 

 Egg and larva . 





Pupa 

















Total 

















Eurytoma tylodermatis: 



Egg and larva 



11-12+ 

 5-6 

 17+ 



12-25+ 



5-9 



21-30 



15+ 



11-36 

 17-41 



8+ 

 8-11 

 16+ 



8-9 

 7-8 

 16+ 



11+ 



15-23 



26+ 



158+ 

 20+ 



178+ 





110+ 



Pupa 





17-25 



Total 





135+ 



LariopTiagm texanus 







MicTOdontoncrus anthonomi: 

 Egg and larva 





14-15 



6-7 



21+ 



26+ 

 6-11 

 32-37 

























Total 



20+ 











Myiophas-ia senea: 

 Egg and larva 





- 







Pupa 

















Total 

















Pimplasj).: 



Egg and larva 















62+ 



Pupa 

















15- 



Total 

















87+ 



Sigalplius curculionis: 



Egg and larva 











17-20+ 



13-16 



33+ 

























Total 

















Tetrastichus Jiunteri: 

 Egg and larva 





8-11+ 

 16-19 

 27+ 







143-216+ 

 31+ 

 174-216+ 







Pupa 















Total 















Urosigalphm antJionomi: 







6+ 

 9+ 

 15+ 









Pupa. 

















Total 

















Urosigalphus sp.: 

 Egg and larva 





12+ 

 3+ 

 15+ 





























Total . . 





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