44 PARASITES OF THE COTTON BOLL WEEVIL. 
Parasite. Host. 
Tchneumonoidea—Continued. 
Sigalphus curculionis Fitch.....-.------ Anthonomus grandis Boh. 
Conotrachelus juglandis? in nuts. 
Conotrachelus nenuphar Hbst. 
Trichobaris trinotata Say. 
ISG OLDRUS Bs Bae Zoic we. alere terme Chalcodermus xneus Boh. 
Sigalphus zygobaridis Cwid...-- - oe ee Zygobaris xanthoxyli Pierce. 
Urosigalphus anthonomi Owid.....-.---- Anthonomus grandis Boh. (Texas). 
Urosigalphus armatus Ashm.....-.-.-.--- Balaninus spp., Conotrachelus spp. 
Urosigalphus bruchi Cwid.....-.------- Bruchus prosopis Lec. 
Urosigalphus schwarzt Cwid.......------+ Anthonomus grandis Boh. (Guatemala). 
Braconide. Chelonine. 
Phanerotoma tibialis Hald...........--- Anthonomus nigrinus Boh. 
Braconide. Agathidinz. Micro- 
dini. 
Microdus simillimus Cress.....--------- Lixus scrobicollis Boh. 
Braconide. Braconine.  Braco- 
nini. 
Glyptomorpha liai Ashm.....--.-.------ Lizxus scrobicollis Boh. 
Glyptomorpha mavaritus Cress...-.--.-- Lixus scrobicollis Boh. 
Glyptomorpha novitus Cress....--------- Tixus musculus Say. 
Glyptomorpha rugator Say..--.--------- Lixus concavus Say. 
Lizus musculus Say. 
Vipiobelfrage: Gress: oo. yn e8 eh = oe = Lizxus scrobicollis Boh. 
Melanobracon simplex Cress...-------. -- Dendroctonus picexperda Hopk. 
Microbracon nwperus Cress.....--------- Orthoris crotchii Lec. 
Bracon analcidis Ashm...-.--- - Cotte ee Tyloderma fragarix Riley. 
Bracon anthonomi Ashm.......-.------- Anthonomus signatus Say. 
Bracom. elUlor Say <2 hos as Se oe Cea Anthonomus eugenti Cano. 
Anthonomus albopilosus Dietz. 
Anthonomus fulvus Lec. 
Anthonomus grandis Boh. 
Anthonomus squamosus Lec. 
Desmoris scapalis Lec. 
Braco DissOdis: NSO e eet os eet a Pissodes strobi Peck. 
Bracon rhyssemati Ashm. ms.....-.----- Rhyssematus lineaticollis Say. 
Bracon smicronygis Ashm. ms...-------- Smicronyx tychoides Lec. 
BT OCOTe Bie a ee cc eee ae eee Tomicus pint Say. 
BRACOR ISDS tat = el ee onee eee cee Brachytarsus limbatus Say. 
Braton: Spa one Skee tes os eae eee Baris sp. 
Braconidze. Rhogadinz. Rhyssa- 
lini. 
Rhyssalus pityophthori Ashm.....--.---- Pityophthorus sp. 
Braconidze. Spathiinse. Spathiini. 
Spathius canadensis Ashm...-.---------- Dryocetes autographus Ratz. 
(?) Magdalis olyra. 
Phleosinus graniger 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 
