THE CANADIAN KNTOMULOGIST. 263 



ASCLEPIADIPHILA, gCll. IIOV. 



This new genus comes very close to Antistrophus, Walsh, and might 

 easily be confused with it, since it agrees with it in all particulars except 

 as follows : 



The female antenuiv are 13-jointed, not r4-jointed, the third joint 

 being shorter than the fourth; in the male the antennae are 14 jointed, 

 not 15-jointed. The second abdominal segment occupies fully two-thirds 

 the whole surface, while in Antistrophus the second segment is consider- 

 ably shorter. 

 Asclepiadiphila stephajiotidis, sp. n. 



Gall. — A small, rounded or pea-like gall averaging from 6 to 8 mm. 

 in diameter, growing from the stems of a species of Stephanotis. Ex- 

 ternally it is opaque and varies from a gray to a brownish colour, while 

 internally it is whitish and composed of a dense pithy substance with a 

 single larval cell in the centre. 



Gall-wasp. — %. Length 3 mm. Head, thorax and legs reddish- 

 brown, the sutures of the thorax dusky, the mesonotum with a dark 

 streak down the middle, while the middle and hind tarsi are more or less 

 obfuscated. Antennse 13-jointed, brown. Abdomen black, highly polished. 

 Wings hyaline, the veins pale yellowish ; the first branch of the radius is 

 straight or nearly so ; areolet entirely wanting, the tranverse cubitus about 

 two-thirds the length of the first abscissa of the radius, the first branch 

 of the cubitus very delicate, indistinct, and originating from about the 

 basal third of the basal nervure. 



^ . — Length 2.6 mm. Black ; tips of femora and more or less of 

 anterior and middle tibise basally dark honey-yellow, rest of legs black. 

 Antennae 14-jointed, the scape and pedicel black, the flagellum brown. 

 Hab. — Oregon, Missouri. 

 Types, No. 3737, U. S. N. M. 



A NEW FOOD PLANT FOR PAPILIO ASTERIAS. 



BY G. H. FRENCH, CARBONDALE, ILL. 



A few days ago I received a letter from Mr. A. V. Thomsen, Chicago, 

 giving a new food plant for Papilio Asterias. But I can give it best by 

 quoting part of Mr. Thomsen's letter. He says : 



" Having made a very interesting observation in my study of Lepi- 

 djptera, I herewith enclose the notes regarding the same. Aug. 26, '97, 

 I received from Mr. Higgins, in charge of Dept. of Hardy Perennials 



