58 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



ZYGOPIN.E. 

 Cylindrocopturus adspersus Le Conte. 



Bred from stems of Xanthium March 30, 1908; bred from 

 stems of flelianthus, May 3, 1908; July 31, 1907 (Mitchell). 

 Breeding in the stems of Ambrosia trifida, December 12, 1908 

 (Mitchell) and parasitized by Cerambycobius cyaniceps Ash- 

 mead, Horismenus lixivorus Crawford, and an undetermined 

 braconid (Pierce). Breeding in the stems of Xanthium, Decem- 

 ber 12, 1909 (Mitchell) and parasitized by Cerambycobius cush- 

 mani Crawford and a braconid (Pierce). 



Cylindrocopturus longulus Le Conte. 



Bred from the stems of ID a ciliata May 3, 1908 (Mitchell), 

 October 9, 1907 (Mitchell and Cushman). Parasitized during 

 winter by Cerambycobius cyaniceps Ashmead, Cerambycobius 

 cushmani Crawford, Eurytoma tylodermatis Ashmead, Neoca- 

 tolaccus tylodermcB Ashmead, and a braconid (Pierce). 



Cylindrocopturus mammillatus Le Conte. 



Bred from the stems of Verbesina virginica, June 11, 1907 

 (Mitchell). Bred from stems of Eupatorium alternifolium, Sep- 

 tember 17, 1910 (Mitchell). 



CEUTORHYNCHINJE. 

 Acanthoscelis griseus Dietz. 



May 3, 1907 (Mitchell). 

 Craponius inaequalis Say. 



Beaten from grape-vines, April 4 (E. A. Schwarz). 

 Auleutes nebulosus Le Conte. 



On seed of joint-grass in marshy place July 11, 1905; August 

 1905 (Mitchell). 



Auleutes tenuipes Le Conte. 



August, 1905 (Mitchell). 

 Rhinoncus pyrrhopus Boheman. 



Breeds in Polygonum, Miracle Mud Marsh, larvae June 21, 

 1909, adults July 1 (Mitchell). Parasitized by Cerambycobius 

 (Pierce). 



Rhinoncus longulus Le Conte. 



August, 1905 (Mitchell). 

 Perigaster cretura Herbst. 



Breeds on the leaves of water purslane (Ludwigia natans). 

 The larvae are first noticed near the bud; they feed externally on 



