THE BED SPIDER ON COTTON. 



47 



parasites, thus indicating a parasitism of 48.4 per cent. Of a series 

 of 93 chrysopid eggs, 7 were parasitized, which represents an egg 

 parasitism of 7.5 per cent. The total parasitism, from species 

 issuing from the egg and from species issuing from the cocoon, is 

 computed at about 55.9 per cent. Tliese parasites, as identified by 

 J. C. Crawford, are as follows. Reared from cocoon : ChrysopopJiagus 

 compressicornis Ashm., Perilampus chrysopae Crawford, Geniocerus 

 chrysopae Crawford, Isodromus iceryae Plow., Orthizema atriceps Ashm. 

 and Heloris sp. Reared from egg: Telenomus chrysopae Ashm. 



Fig. 12.— The golden-eyed lacewing fly (Chrysopa oculata): a, Eggs; 6, full-grown larva; c, foot of same; 

 d, larva devouring an insect; e, cocoon; /, adult insect; g, head of same; h, adult, natural size. All 

 enlarged except h. (Marlatt.) 



Table XVII presents our data relative to the parasitism of chrysopid 

 eggs by Telenomus chrysopae. 



Table XV'II. — Parasitism of chrysopid eggs by Telenomus chrysopae Batesburg, S. C. 



Individ- 

 ual No. 



Egg col- 

 lectefl. 



Host. 



Parasite 

 issued. 



Interval 

 from col- 

 lection to 

 issuance. 



1 



2 



3 



4 



5 



6 



7 



July 10,1914 



do 



July 11,1914 

 July 15,1914 



do 



July 17,1914 

 do 



Cotton — 

 ClematLs. . 

 Cotton 



July 13, 1914 

 July 19,1914 

 do 



Days, 

 i 

 9 



8 

 8 

 5 



9 



Kim 



Cotton 



...do 



Clematis . . 



July 2;i, 1914 

 July 20, 1914 

 July 24, 1914 

 July 20, 1914 



