40 PARASITES OF THE COTTON BOLL WEEVIL. 



Xo dark forms of this species were bred until September 10, 1906, 

 except a single B. dorsator which was bred from Cuero material col- 

 lected August 31. The rest were all bred from material collected 

 at Brownsville, September 29; Dallas, October 2, 6, 10; and Waco, 

 October 12. The record of all Bracon bred after October 10 is as 

 follows: 



October 10, Bracon. mellitor, :\ males, 5 females. 



1 1, Do. 1 male. 



12, Do. ] male. 



13, Do. 1 female: mellitor xanthostigma, 2 females. 

 L5, Do. 1 female. 



18, Bracon mellitor xanthostigma, 3 females. 

 20, Do. 2 females. 



22. Bracon mellitor, 3 females; mellitor xanthostigma, 2 females: mel- 

 litor dorsator, 2 males. 1 female. 



24, Bracon m. xanthostigma, 1 female. 



25. Do. 2 females: m. dorsator, 1 female. 

 31, Do. 2 females. 



November 1. Do. 3 females: m. dorsator, 1 male. 



5, Do. -» 1 female. 



6, Bracon mellitor dorsator. 1 female. 



14, Bracon mellitor xanthostigma, 1 female. 



11. An undetermined braconid of the size of Bracon mellitor, but 

 with the base of the abdomen black and belonging to a different sub- 

 family, was bred September 17 from a yellow cocoon in a fallen 

 square collected at Victoria, Tex., September 1. Unfortunately this 

 was lost in the mails. 



12. MyiopJiasia senea Wied. This species is recorded as a parasite 

 of Balaninus nasicus Say, CJidlcodermus sp., Conotrachelus jughndis 

 Lee, and SphenopJiorus parvulus Gyll. (Coquillett, 1897), and also of 

 Arnpeloglypter sesostris Lee. (Aldrich, 1905). One specimen was bred 

 July 6 by the writer from a larva of Conotrachelus aifinis Boh. found 

 in a hickory nut collected June 8 at Logansport, La. As parasites 

 of the boll weevil from fallen squares collected at Many, La., August 

 23, 1 male was bred September 5 and 1 female September S, while 

 1 failed to mature. From a hanging square collected at Waco. 

 Tex., August 29, a puparium was obtained but the fly not bred. 

 From a small boll collected at Victoria, Tex., July 12, a deformed 

 fly was bred. 



Parasitism by this species can always be positively proved if the 

 puparium is found, as it is inside of the stretched skin of the weevil 

 larva. The affected larva is of a tawny parchment color and shows 

 the projections of the appendages of the fly puparium. 



The developmental period is undoubtedly in excess of 28 days, as 

 shown by the first record above. 



13. Several attempts have been made to introduce Pediculoides 

 ventricosus Newp. into Texas as a parasite of the boll weevil, but 



