AN INJURIOUS NORTH AMERICAN APTON, ETC. 81 



elongate pyriform, or pear-shaped; the rostrum or ])eak is more or 

 less prolonged in front of the eyes, and the head back of the eyes is 

 usually constricted, forming a neck. The antennae are delicate and 

 elbowed. 



NOTES ON RELATED FORMS. 



The following observations on other species of Apion are chiefly 

 from the writer's personal experience, and all rearings should be so 

 credited, with the exception of those where the collector or observer 

 is mentioned : 



Apion ameipenne Sm. — During the first two weeks of June nu- 

 merous examples of this species were obtained at Rosslyn, Va., by 

 beating a common tick-trefoil (Meibomia [Desmodium] ). AVhen 

 the beetles were confined with leaves they riddled them with minute 

 holes after the manner of the commoner ^1. nigrum on locust. 



Apion tiirhulentum Sm. — This species was observed during the 

 latter half of September in and near Cabin John, Md., and in con- 

 siderable numbers on Meihomia marylandica. The beetles were 

 numerous, occurring on the seeds, in which they undoubtedly live, 

 although they were not reared. 



Apion crihricoUe Lee. — We have, among the Department notes, 

 one on the rearing of this beetle from a species of lotus {Lotus 

 [llosackia] glabra) from Henwood, Santa Cruz County, Cal. 



Apion prodive Lee. — July 18, 1808, INlr. E. M. Ehrhorn reported 

 that this species was infesting the pods of Lupinus arhorea at Pacific 

 Grove, Cal.. where nearW every pod showed signs of attack. A 

 similar attack to lupine was reported by Mr. Ehrhorn in 1907 at 

 San Francisco, Cal. The beetles issued September 5-19. The species 

 proves to be parasitized by a chalcidid. 



Apion patrnele Sm. — This species was found al)undantl3' on a 

 climbing wild legume at Cold Spring Harbor, Long Island, N. Y., in 

 July. The plant at this time was in bloom, and there is little doubt 

 that the larva inhabits the pods. 



Apion segnipes Say. — The writer has reared from this species, 

 found in its well-known food plant, the goat's rue {Cracca [Teph- 

 rosia'] virginiana) , the chalcidid parasite luin/toma tt/Jodennatis 

 Ashm., in August, in Maryland, near the District of Columbia. The 

 Avriter has also reared this species from its larva found in tlie cells of 

 Tyloderma foveolatum in October. There is fair indication, there- 

 fore, of two generations. 



Apion decoJorntmn Sm. — This species breeds in the seed pods of 

 the genus Meibomia. Beetles have been reared from J/, paniculata 

 and J/, grandiforii^ and exit lioh's have been observed in pods of all 

 of the species of this genus of plants that have come luider observation 

 in Maryland and Virginia about Washington. The beetles began 



