42 INSECT ENEMIES OE THE BOLL WEEVIL. 



Insecta — Continued . 

 Hymenoptera. Chalcidoidea — Continued. 

 Perilampidse. 



Perilampus sp.^ (parasite), Louisiana. 

 Encyrtidse. Eupelminse. 



CeramhycoMus cyaniceps Ashmead (parasite), Arkansas, Louisiana, Mississippi, 

 Oklahoma, Texas. 



Cerambycobius cushmani Crawford (parasite), Texas. 



Cerambycobius sp. (parasite), Mississippi. 

 Pteromalidae. Pteromalinae. 



Catolaccus incertus Ashmead (parasite). United States. 



Catolaccus hunteri Crawford (parasite), Louisiana, Mississippi, Mexico, Texas. 



Habrocytus piercei Crawford, Louisiana, Texas. 



Lariophagus texanus Crawford (parasite), Texas. 

 Eulophidae. Tetrastichinse. 



Tetrastichus hunteri Crawford (parasite), Louisiana, Mississippi, Texas. 

 Hymenoptera. Ichneumonoidea. 



Ichneumonid^. Pimplinae. Pimplini. 



Pimpla sp. (parasite), Texas. 

 Braconidse. Sigalphinae. 



Sigalphus curculionis Fitch (parasite), Louisiana, Mississippi, Texas. 



Urosigalphus anthonomi Crawford (parasite), Texas. 



Urosigalphus schivarzi Crawford (parasite), Guatemala. 



Urosigalphus sp. (parasite), Texas. 

 Braconid^. Braconinae. Braconini. 



Microbracon mellitor Say (parasite), Mexico, United States. 

 Braconidse. 



Unknown species (parasite), Texas. 

 Diptera. Cyclorrhapha. 

 Phoridae. 



Aphiochseta nigriceps Loew (parasite), Texas. 



Aphiochxtafasciata Fallen {ipaiasite), Texas. 



Aphiochseta pygmsea Zetterstedt (parasite), Texas. 

 Tachinidae. 



Myiophasia senea Wiedemann (determined by Coquillett) (parasite), Texas. 



Ennyomma globosa Townsend (parasite), Louisiana, Texas. 



HYPERPARASITES. ^ 



Diptera. 



Plastophora (Pseudacteon) crawfordi Coquillett on Solenopsis geminata Fabricius. 



2. THE HOSTS OF BOLL- WEEVIL PARASITES. 



As has just been stated, the boll weevil has 55 species of insects, 

 which are known to attack it. Among the parasites are to be found 

 7 which are occasionally accidentally hyperparasitic. At least 1 par- 

 asite is known to attack one of the predators. The accidental preda- 

 tor {Alabama argillacea) is attacked by 12 parasites, 46 predators, 



1 This species may be a parasite of a Clirysopa larva or of some lepidopteron whicli had entered a weevil 

 cell. 



2 The enemies of Alabama argillacea Hiibner afford some interesting sidelights on the complexity of the 

 biological relations of cotton insects. 



