254 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 5 



kind, from which were taken larvse in the field, are not included in this 

 count. Not a single case of infestation of any larger bolls has been 

 found. It is probable that these newly-set bolls were infested just 

 before the opening of the flower. After the flower is shed and the 

 boll begins to grow, it is not affected by the weevil. 



In July and August of the present year 4408 squares were collected 

 from various points in the whole area at various dates, making 20 

 separate lots. These were fallen squares, and hanging squares that 

 were either dead or more or less yellowed or opened indicating work 

 of the weevil. From these were secured exactly 2800 weevils and 

 573 parasites. Most of these issued naturally, but all the squares 

 were later opened and unissued weevils and parasites extracted. There 

 was found to be a total of 2131 squares that had contained weevil 

 stages. The other squares had doubtless been largely killed by the 

 feeding punctures of the weevil. 



The parasitism of weevil stages in the squares indicated by the 

 above figures is practically 17%, being slightly short of it. That 

 indicated in the newly-set bolls is over 9%. 



The total of 591 parasites from the July and August, 1911, lots 

 appears to represent at least 11 species, all of which I believe to be 

 true parasites of the weevil. They are as follows, in the order of 

 their comparative abundance: 



(1) Sigalphus n. sp. (det. Viereck) — 439 specimens. Ten of these 

 averaged very much smaller than the rest and further differed in 

 having much darker legs, but they are probably only a variation. 

 This, as will be seen, is by far the most abundant parasite. The 

 rearing records indicate a period of not less than 23-26 days, and 18-21 

 days for the small form. 



(2) Bracon n. sp. (det. Viereck) — 71 specimens. Two of these 

 were extremely small, being only one and one-half millimeters in 

 length, but I could see no structural nor even colorational differences 

 in them. The rearing record is evidently valueless here, indicating 

 not less than 11-13 dajj-s. 



(3) Cerambycobius n. sp. (det. Crawford) — 42 specimens, 33 being 

 female and 9 male. Stated by Mr. Crawford to resemble closely C. 

 cushmani, but differing in the sculpture of the mesonotum. Rearing 

 records indicate not less than 17-29 days for the females, and 18-23 

 days for the males. 



(4) Catolaccus n. sp. (det. Crawford) — 13 specimens. Rearing 

 records indicate not less than 10-14 days, which is evidently too 

 short. 



(5) Eurji;oma n. sp. (det. Crawford) — 9 specimens. 



(6) Braconid— 5 specimens. This is a large and elongate species, 



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