BIOLOGIES OF WEEVILS CONTRIBUTING PARASITES. 47 
16. Chalecodermus «neus Boh. is the cowpea-pod weevil, although 
it has once been bred from a cotton square. It is recorded as a host 
of Myophasia nea. 
17. Tyloderma foveolatum Say breeds in the stems of Onagra 
biennis, an early summer evening primrose. Pupation takes place 
in the larval burrow. It is parasitized by Eurytoma tylodermatis and 
Cerambycobius cyaniceps. 
CEUTORHYNCHINI. 
18. Auletes tenwipes Lec. This species was found to breed in the 
buds of Galpinsia hartwegi at Dallas in the spring. The larvee feed 
within a single anther in the bud, leaving it when the flower opens 
and entering the ground for pupation. The entire life cycle does not 
_xceed 25 days, of which 11 days only is spent in the bud. Catolaccus 
incertus has been bred as a parasite. 
BARINI. 
19. Orthoris crotch Lec. is a very abundant fall weevil in western 
Texas, breeding in the seed: pods of Mentzelia nuda, a plains plant. 
Pupation is in a cell formed within several seeds. The species is 
highly parasitized by several species, the least of which, however, is 
Eurytoma tylodermatis. 
20. Trichobaris texana Lec. is a stalk weevil, breeding in the stems 
of Solanum rostratum, a plant common in waste places in the summer 
and fall. The weevil cells are not more than an inch apart through- 
out the stem. Cerambycobius cyaniceps has been bred as a parasite. 
21. Trichobaris trinotata Say, the potato stalk weevil, is another 
host of Sigalphus curculionis. 
22. Ampeloglypter sesostris Lec. is a grapevine weevil, and a host 
of Myiophasia xnea. It is not recorded from Texas. 
23. Zygobaris xanthoryli Pierce. This new species breeds in the 
berries of Xanthoxylum at Runge and Beeville, Tex., in the spring. 
The larve feed in the interior of the seed until the seed is thrown to 
the ground. They then enter the soil and pupate in a tiny earthen 
cell, being in,the ground about a month. Catolaccus incertus has been 
bred as a parasite. 
ANTHRIBID#. 
24. Brachytarsus alternatus Say breeds in the stems of Sideranthus 
rubiginosus. It is a constant breeder, entirely riddling the stems. 
Microdontomerus has been bred from it. 
BRUCHID®. 
Although not considered Rhynchophora by American writers, it is 
very probable that the Bruchide are a connecting link between the 
Anthribide and Chrysomelide. 
