AN INJURIOUS NORTH AMERICAN APION, ETC. 31 



elongate pyriform, or pear-shaped; the rostrum or beak is more or 

 less prolono;ed in front of the eyes, and the head hack of the eyes is 

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

 elbowed. 



NOTES ON RELATED FORMS. 



The following ob.servations on other species of Apion are chiefly 

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

 <'redited, with the exception of those where the collector or observer 

 is mentioned: 



Apion ceneipenne 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 (^leibomia [Desmodiuni] ). When 

 the beetles were confined with leaves they riddled them with minute 

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



Apion turhidentum Sm. — This species was observed during the 

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

 siderable numbers on Meibomia marylandlca. The beetles were 

 numerous, occurring on the seeds, in which they undoubtedly liA-e. 

 although they were not reared. 



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

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

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



Apion proclive Lee. — July 18, 1808, ^NFr. E. jSI. Ehrhorn reported 

 that this species was infesting the pods of Lupin us arlyorca at Pacific 

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

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

 San Francisco, Cal. The beetles issued September 5-10. The species 

 proves to be parasitized by a chalcidid. 



Apion patruele Sm. — This species was found abmidantly on a 

 climbing wild legume at Cold Spring Harbor, Long I-laud, X. Y., in 

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

 that the larva inhabits the pods. 



Apion scgnipes Say. — The writer has reared fi'oni this species, 

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

 rosi(i\ rirginiaua). tln' clialcidid [>arasite K^ri/fo/nu fi/Jorlcnnatis 

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

 writer has also reared this species from its larva found in the cells of 

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

 fore, of two generations. 



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

 the genus Meibomia. Beetles have been reared from J/. panicuJata 

 and .1/. grandifora, and exit holes have been observed in pods of all 

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

 in Maryland and Virginia about Washington. The beetles began 



