Se|.t.-i)cc.. 19-M.I Weiss-Dickerson : Milkweed Insects. 135 



Gourcau in the Annales de la Society Entomologique dc France 

 ;\'ol. IX. p. 138, 1851) figures the mine, adult, larva, etc.. and 

 -ivLS an account of injury to the leaves of liupJwrbia cyparissias 

 r.lso mentioning a i)arasite. Dciciiiisa iiiccrta Ci. In Xcw jersey, at 

 New Brunswick, on July 10. a parasite of the larva was secured and 

 identified by Mr. S. .\. Rohwer as Opiiis n. sp. 



A very complete account of this leaf-miner is ^iven by W'eltster 

 und Parks (Jour. .\g. Res.. Vol. I. no. i, 1913) under the title, 

 ■ The Serpentine Leaf Miner." This account ^'wes a history of 

 the species in luirope. its wide distribution in the United States, its 

 1 fe history, notes on food plants, descriptions of the various stages 

 nnd notes on parasites together with advice for controlling its in- 

 juries to alfalfa and forage crops. It has a wide range of food 

 l^lants including cabbage, nasturtium, radish, potato, turnip, spinach, 

 cowpeas. watermelon, beet, pepper, vetch, sweet pea, clover, rape, 

 cotton, tobacco, alfalfa, etc.. and was apparently first recorded in 

 .America by Riley in 1876. 



Milkweed Midges. 



Dr. E. P. Felt under the title " Hosts and Galls of American Gall 

 Midges" (Jour. F.con. Ji"t. Vol. IV. p. 454, 1911) and in his "Key 

 to .American Insect Galls" (N. Y. St. Mus. Bui., 200, p. 180) gives 

 the following information under Asclcpias. 



Elongate fusiform stem gall on A. incarnata Xcolasioptera asclcpiw. 



Rusty brown irregularly swollen young leaves on A. 



incarnata Cccidomyia sp. 



Oval, mid-rib, tumid fold, length 7 mm., diani. 4 mm. 



on A. incarnata Cccidomyi^i sp. 



Reared from rolled leaf of A. syrioca Lcstodiplosis asclepitc. 



At New Brunswick, N. J., on July 31. whitish, midge larvie were 

 found in the rolled edges of the leaves of Asclcpias syrioca. The 

 edges were rolled downward and the larv.e occurred in colonies of 

 from five to twelve. No adults were secured but it is probable that 

 the species was LcstodipUx^is asclcpicc Felt. 



Danaus archippus 1-abr. (l.ep.). 



Very little need be said about the Mnnarch butterfly which occurs 

 over the entire continent as far north as southern Canada. In New 



