44 PARASITES OF THE COTTON BOLL WEEVIL. 



Parasite. Host. 



Ichneumonoidea — Continued. 



Sigalphus curculionis Fitch Anthonomus grandis Boh. 



Conotrachelus juglandis? in nuts. 

 Conotrachelus nenuphar Hbst. 

 Trichobaris Irinotata Say. 



Sigalphus sp Chalcodermus xneus Boh. 



Sigalphus zygobaridis Cwfd Zygobaris tanthoxyli Pierce. 



Urosigalphus anthonomi Cwfd Anthonomus grandis Boh. (Texas). 



Urosigalphus armatus Ashm Balaninus spp., Conotrachelus spp. 



Urosigalphus bruchi Cwfd Bruchus prosopis Lee. 



Urosigalphus schwarzi Cwfd Anthonomus grandis Boh. (Guatemala). 



Braconidae. Cheloninae. 



Phanerotoma tibialis Hald Anthonomus nigrinus Boh. 



Braconidae. Agathidinae. Micro- 

 dini. 



Microdus simillimus Cress Lixus scrobicollis Boh. 



Braconidae. Braconinae. Braco- 

 nini. 



Glyptomorpha lixi Ashm Lixus scrobicollis Boh. 



Glyptomorpha mavaritus Cress .Lixus scrobicollis Boh. 



Glyptomorpha novitus Cress Lixus musculus Say. 



Glyptomorpha rugalor Say Luws concavus Say. 



Lixus musculus Say. 



Fipio belfragei Cress Lix?/s scrobicollis Boh. 



Melanobracon simplex Cress . .Dcndroctonus piceseperda Hopk. 



Microbracon nuperus Cress Orthoris crotchii Lee. 



Bracon analcidis Ashm Tyloderma fragarise Riley. 



- Bracon anthonomi Ashm Anthonomus signatus Say. 



Bracon mellitor Say Anthonomus eugenii Cano. 



Anthonomus albopilosus Dietz. 

 Anthonomus fulvus Lee. 

 Anthonomus grandis Boh. 

 Anthonomus squamosus Lee. 

 Desmoris scapalis Lee. 



Bracon pissodis Ashm Pissodes strobi Peek. 



Bracon rhyssemati Ashm. ms Rhysscmatus lineaticolhs Say. 



Bracon smicronygis Ashm. ms Smicronyr lychoid.es Lee. 



Bracon sp Tomicus pin i Sa \ . 



Bracon sp Brachytarsus limbatus Say. 



Bracon sp 2?ar£s sp. 



Braconidae. Rhogadinae. Rhyssa- 

 lini. 



Rhyssalus pityophthori Ashm Pityophthorus sp. 



Braconidae. Spathiinie. Spathiini. 



Spathius canadensis Ashm Dryococtcs autographus Ratz. 



(?) Magdalis olyra. 

 Phlvosinus granigcr Chap. 

 Tomicus sp. 



BIOLOGIES OF THE WEEVILS CONTRIBUTING PARASITES. 



It is of considerable importance in framing means of combating 

 the boll weevil with parasites that the weevils usually found in the 

 vicinity of cotton fields should be thoroughly known. In order that 



