247 



In the family CoccinellidtB Megilla maculata DeG., Hippodamia con- 

 vergens Guer., Coccinella 9-notata Hbst., and C. samjuinea Linn, were 

 common in all stages, feeding upon tbe cotton apbi.s {Aphis gossypii 

 Glover). Chilocorus bivulnerus Muls., Uxochomus marginipennis Lee, 

 and Pentilia auralis Lee, were observed feeding on the cotton Aley- 

 rodes {Aleyrodes gossypii Fitch), while two species of seymnids, Seym- 

 nus caudalis Lee. and *S'. cervicalis Muls., fed on both the cotton a^jhis 

 and the cotton Aleyrodes. 



The Pennsylvania tire-fly, Chauliognathus pennsylvanicus DeG., and 

 the yellow-margined fire-fly, G. marginatus Fab., were exceedingly 

 abundant in the blossoms, with occasional specimens of Pyropyga 

 miituta Lee. and Photinus marginellus Lee. 



All these insects are beneficial as pollenizers, and the larvfe of the 

 first two were frequently seen crawling over the ground beneath the 

 cotton plants. In this stage tliey are said to feed on the cotton-worm 

 and other lepidopterous larvte. 



In the Chrysomelidic I took the following species: Lema G-pnnctata 

 Oliv., Anonuca latidavia Forst., Cryptocephalus ealidus Suffr., Myochrous 

 denticoUis Say, Colaspidia fiavida Say, Nodonota tristis Ol., PhyUech- 

 thrus nignpennis Lee, Diahrotica 12-punctata Ol., I>. rittatd Fab., and 

 Sysfena elongata Fabr. Of these only three may be mentioned as injur- 

 ing the plant. A)iom(ea laticlaria feeds on the leaves, while Colaspidia, 

 flavida and Xodonota tristis gnaw little irregular holes through the outer 

 covering of the blossoms, and fre(|uently gnaw into the epidermis, of 

 the bolls, thus exposing them to the weather and causing them to drop. 

 The Diabroticas were captured in the blossoms feeding on pollen; they 

 evidently breed in neighboring cornfields. 



One species of Bruchidie was common in cotton blossoms — the four- 

 spotted bean-weevil {Bruchus ■i-maculatus Fabr.). It would be inter- 

 esting to know whether or not this species lives in cotton seed. 



The 8-si)otted mordellid {Mordella 8-punctata Fabr.) was often seen 

 in the blossoms, but in the larval state it is said to live in the stems of 

 various i)l;ints. 



Two species belonging to the family Anthicidte, Xotoxus bicolor Say 

 and Macratria murina Fabr., as well as some weevils belonging to the 

 family Curculionidie, Apion sp., Baris sp., and Ccntrimis jncnmnus 

 Fabr., and a Meloid, Epicaitta strigosa Gyll., were common in cotton 

 blossoms. 



