76 



INSECT ENEMIES OF THE BOLL. WEEVIL. 



Desmoris scapalis LeConte. This weevil (fig. 21) occurs mainly 

 on the black prairie in Texas and breeds in the heads of Sideranthus 

 ruhiginosus. It is parasitized by Microbe agon mellitoe. 



ANTHONOMIN.E. 



Macrorhoptus spJiseralcise Pierce. This weevil was found breeding 

 in stems of Sphxralcea angustifolia. It is the host of Eueytoma 



TYLODEEMATIS, 



Tachypterellus quadrigihhus Say. This fruit weevil breeds in the 

 seed of apple, pear, Cratsegus oxyacantha, and Cratscgus mollis. It is 

 known to us to be parasitized by Ceeambycobius cyaniceps and 

 Catolaccus hunteei. 



Smicraulax tuberculatus Pierce. This species breeds in the stems 

 of mistletoe {Phoradendron iiavescens) throughout Texas, and evi- 

 dence of its work has been observed in Louisiana and [Mississippi. It 



is parasitized by Eueytoma tylo- 

 DERMATis, Ceeambycobius cyani- 

 ceps, Catolaccus hunteei, and 



MiCEOBEACON MELLITOE. 



Anihonomus fulvus LeConte. 

 This weevil breeds in the larger 

 buds of Callirrhoe involucrata and 

 C. digitata. It is a characteristic 

 woodland and meadow insect in 

 Oklahoma and Texas. The known 

 parasites are Catolaccus incee- 

 Tus and Miceobeacon mellitoe. 

 Antlwnomus signatus Say. The 

 strawberry weevil is mainly char- 

 acteristic of the humid Austral zones, and it breeds in the buds of 

 strawberry, blackberry, dewberry, raspberry, Ruhus vlUosus, Poten- 

 tilla canadensis, and Cercis canadensis. It is parasitized by Micro- 

 hracon anthonomi, Calyptus tihiator, Catolaccus hunteei, C. incee- 

 Tus, and C. anthonomi. The two latter species were described from 

 this weevil. 



Anthonomus albopilosus Dietz. This little Texas weevil breeds in 

 the capsules of Croton capitatus, C. engelmanni, and C. texense. It 

 is known to us to be parasitized by Miceobeacon mellitoe, Cato- 

 laccus hunteei, C. inceetus, and Ceeambycobius cyaniceps. 



Antlionomus nigrinus Boheman. This species is eastern in habitat 

 and breeds in the buds of Solanum carolinense, and the potato {S. 

 tuberosum). It is the host of Entedon lithocolletidis, Eriglyptus 

 rohustus, Catolaccus inceetus, and C. anthonomi. 



Fig. 21.— The ironweed weevil {Desmoris sea. 

 pedis), a, cohostoi boll- weevil parasites. En- 

 larged. (From Hunter and Hinds.) 



