36 PARASITES OF THE corron’ BOLL WEEVIL. 
found, so that no doubt could be expressed as to the source of the 
parasites. Corroboration was obtained by examining the cocoons. 
3. Bruchophagus herrere Ashm. Considerable doubt has been raised 
by very eminent parasitologists as to the actual parasitism of the 
boll weevil by this species and some doubt has been raised concerning 
its generic location. No subsequent corroboration has been obtained 
to prove parasitism of the boll weevil. 
4. Cerambycobius cyanicepsAshm. The first published record of the 
parasitism of the boll weevil by this species is found in Mally’s Report 
(Mally, 1902), in which that writer states that he had bred it since 
1899 at Austin, Tex. Only four records were obtained in previous 
years by the boll-weevil laboratory of the Bureau of Entomology; 1 
female bred July 7 at Calvert, Tex., by G. H. Harris; 1 male and 1 
female bred July 25 at Victoria, Tex., by W. E. Hinds, and 1 female 
bred March 11 at Corsicana, Tex., by C. M. Walker. 
Dr. F. H. Chittenden has reared it from the larva of Tyloderma 
foveolatum breeding in the stems of Onagra biennis, September 11, 
from material collected at Chevy Chase, Md. He has also reared it 
from Bruchus eriguus Horn (Chittenden, 1893b). In a personal letter 
dated August 30, 1906, Dr. Wm. H. Ashmead said of this species: 
“Tt is not rare, has been bred from cerambycids and other beetles, 
and I have always supposed it to be a primary parasite. All of these 
beetles, however, have braconid parasites, and it may yet prove to 
be a secondary parasite as other of the eupelmines are said to be.” 
One female was bred by the writer October 17, 1905, as a probable 
parasite of Lizus musculus Say, breeding in stem galls of Polygonum 
pennsylvanicum collected September 19 at Clarendon, Tex. On Octo- 
ber 26, 1906, a female was bred from a Lixvus musculus pupa collected 
in the same plant at Dallas, Tex., opposite the farm on which release 
experiments were conducted. On September 11 and 12, 1906, 2 
females were bred from Anthonomus albopilosus breeding in seed of 
Croton engelmanni collected August 26, 1906, at Johnsons Bayou, 
La., by J. D. Mitchell. On October 30, 1906, 1 female was bred from 
Trichobaris terana found breeding in stalks of Solanum rostratum 
by R. A. Cushman and the writer, along the road close to the plat 
upon which parasites were released at Dallas. 
This parasite is very abundant in eastern Texas, diminishing to 
the Southeast, and is entirely absent at Brownsville and through 
western Texas. It is a continuous breeder, attacking the weevil 
larvee and pupe, one individual for each host. The sexes are in the 
proportion 19.7 per cent males and 80.3 per cent females. The 
females are several times longer than the males. - 
The developmental periods for Cerambycobius cyaniceps have been 
worked out from data covering the period between July 12 and Octo- 
ber 4. The pupal period in July is 10 days or less, in August is from 
