BIOLOGICAL NOTES ON THE PARASITES. 39 
very many different beetles, although usually rhynchophorous 
beetles.” 
The typical form has been bred from Anthonomus grandis at. all 
times and in all places between June 15 and October 4. The form 
xanthostigma has only been bred from the boll weevil between Sep- 
tember 16 and April 28, while dorsator was bred August 2, 1903, at 
Victoria; November 20, 1895, at Goliad, and December 17, 1895, at 
Beeville. B. mellitor was bred June 19, 1905, at Dallas by W. W. 
Yothers from Anthonomus fulvus Lec., which breeds in the buds of 
Callirrhoe involucrata, and on June 14 he bred dorsator from the same 
weevil. On September 20, 1905, F. C. Pratt bred male and female 
dorsator and female mellitor from Desmoris scapalis Lec., breeding in 
the flower heads of Sideranthus rubiginosus at Mexia, Tex.; on Sep- 
tember 23 he bred the typical form from the same weevil collected 
at Calvert, Tex.; on September 29 both the typical form and dorsator 
from Mexia material; and on October 27 he again bred the typical 
form from Mexia material. On September 30, 1905, the writer bred 
mellitor and xanthostigma from Anthonomus squamosus Lec., breeding 
in the heads of Grindelia squarrosa nuda at Clarendon, Tex.; on 
October 2, 4 of the typical form and 1 xanthostigma were bred; on 
October 3, 3 typical, and finally on October 16 a xanthostigma, were 
bred. On October 18 and 23 dorsator was bred by F. C. Pratt from 
Anthonomus eugeni Cano, breeding in peppers at San Antonio, Tex. 
On September 6, 1906, J. D. Mitchell bred a typical form from Antho- 
nomus albomlosus Dietz, breeding in seed of Croton capitatus at 
Victoria, Tex. 
The data upon the life-cycle of Bracon mellitor cover the period 
from June 25 to November 15. The entire developmental period 
covers at least 21 days in June and 33 in October, but probably con- 
siderably more. The period within the cocoon has been limited to 
between 5 and 6 days in June, to 7 days in July, 6 to 11 days in 
August, 3 to 7 days in September, and 15 to 27 days in October. 
The minimum of 3 days in September is based upon an observa- 
tion of the spinning of the cocoon and the time of maturity, and the 
record of 5 days in June was obtained in the same manner. 
The larve of Bracon can be immediately separated by the absence 
of hairs and by the body being punctate instead of lineolate. The 
pupe are yellowish, loosely constructed, with the appendages very 
fragile and inclosed in a stout one-meshed silken cocoon, which varies 
from pure white to golden yellow or dark brown. In several cases 
where particular note was made of the brown color of the cocoon 
hyperparasites were bred, but this was not a constant indication. 
The species varied greatly in size, depending upon the amount of 
food available. (See figures of larva and pupa, PI. I, figs. 5, 6.) 
