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1909. La Ponte des Aphelinus et I'interet individual dans les actes lies a la 



conservation de 1' espece. C. R. Acad. Sc. t. 148, pp. 1223-1225. 



QUAYLE, H. J. 



1910. Aphelinus Diaspisis How. Jour. Econ. Ent. Vol. 3, p. 398. 

 ROCKWOOD, L. P. 



1917. An Aphis Parasite Feeding at Puncture Holes made by Ovipositor. 

 Jour. Econ. Ent. Vol. 10, 1917, No. 4, p. 415. 

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1910. Do Parthenogenetic eggs of Hymenoptera Produce only Males? Amer- 

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1916. An attempt to Redefine the Host Relationships Exhibited by Ento- 

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1920. The Life-History and Successful Introduction into California of the 

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EXPLANATION OF PLATE. 



Fig. 1. Adult female Aphelinus semiflavus with male antenna and genitalia in 



insert. 

 Fig. 2. Female Aphelinus ovipositing in aphid nymph. 

 Fig. 3. Egg less than five hours old. 

 Fig. 4. Egg twenty-four to twenty-eight hours old. 

 Fig. 5. Egg forty-six to forty-eight hours old. 

 Fig. 6. Small larva just hatched. 



Fig. 7. Lateral view of full grown larva, just before pupation. 

 Fig. 8. Front view of larval head, greatly enlarged. 



All figures, except Figure 8, are drawn approximately to the same scale, 

 enlarged thirty-three and a third times. 



