132 Journal New York Entomological Society, [^oi. xxix. 



Chelymorpha argus Licht. (Coleop.). 



This species known as the argus tortoise beetle is recorded by 

 Blatchley (Col. Ind., p. 1233) as throughout Indiana, frequent, April 

 7 to August II, on milkweed and wild potato. Smith (Ins. N. J., p. 

 356) says, common on Convolvulus and Asclcpias, but we have not 

 found it to be common on the latter. In the U. S. D. A. Yearbook 

 (1908, p. 579) it is mentioned as injuring morning glory and moon- 

 flower vines in western Texas. Webster and Mally (Bull. 17, n. s., 

 Div. Ent. U. S. D. A., p. 99, 1898) state that adults were reared from 

 larvae found in Ohio on strawberry vines. 



It is probably best known as a wild morning glory and sweet 

 potato pest and as such is treated by Crosby and Leonard in their 

 Manual of Vegetable Garden Insects (1918, p. 238). Additional 

 food plants given by these authors are sunflower and horse radish. 

 Sanderson (Ins. Pests Farm Garden, Orchard, p. 436) figures the 

 eggs, larvae and adults and gives short descriptions. Chittenden 

 (Bull. 9, n. s., Div. Ent. U. S. D. A., p. 23, 1897) gives an account 

 of its activities on sweet potatoes, and also mentions the larva 

 as feeding on Asclcpias but states that they prefer Convolvulus. 

 Packard in his " Guide " (p. 504) recorded the beetles as abundant on 

 the leaves of raspberry. 



Oncopeltus fasciatus Dallas (Hemip.). 



Known as the milkweed bug, this species is well distributed 

 throughout New Jersey, occurring principally on Asclcpias syriaca 

 but being found on other milkweeds as well. Adults appeared to 

 be most plentiful during July and October, although they were found 

 from June on. The adults hibernate and deposit their elongate light 

 ■red eggs in loose masses on the young milkweeds during the spring. 

 The nymphs and adults also feed on these plants, usually occurring 

 in colonies. Essig (Inj. and Ben. Ins. Cal., 2d ed., Suppl. Mon. 

 Bui. Cal. St. Comm. Hort., Vol. IV, no. 4, 1915) gives a brief ac- 

 count of this species and mentions Lygccus rcclivatus Say as another 

 common milkweed bug. Morrill (U. S. Bur. Ent. Bui., 86, p. 93, 

 [910) in his paper on plant bugs injurious to cotton bolls writes as 

 follows, " two large lygseids, OncopeltuiS fasciatus Dall., and Lygccus 

 turcicus Fab.,^ were common on cotton at Tlahualilo, Durango, Mex- 



1 Mr. H. G. Barber suggests that this may be Lygcnis kalinii. 



