90 



The -pupa is about 7'"'" in lengtli, and of the same milk}' wliite color 

 as the larva. It is shown, side view, in the, iUustration at 1>. 



DISTRIBUTION. 



At the time this species was described in 1876 (Rh^nichophora of 

 America North of Mexico, pp. 94, 95) it was known to have a wide 

 distribution, stated to l)e ""from New Jersey to Montana." At the 

 present time it is known to occur from Maine to California, and has 

 been reported at various times as being destructive in g'reenhouses in a 

 large number of states. The habit it has of feeding in the larval state 

 in the earth about greenhouse plants makes it peculiarl}^ susceptible to 

 transportation with the plants from one locality to another, and it is 

 quite remarkable that it does not cause more destruction than is 

 reported. 



The first observed specimen of this insect appears to have been 

 received by Mr. A. S. Fuller from Montana, and as the only other 

 species of the genus Aramigus is American, it seems probable that, in 

 spite of the fact that the insect lives ahnost exclusively indoors, it is 

 native to America, although prol)ably of neotropical origin. It was 

 probabl}^ introduced from Mexico. 



A list of localities follows: Bucksport, Me.; Cani])ridge, Boston, 

 Worcester, Mass.; New York, Rochester, Little Falls, Poughkeepsie, 

 Albany, Long Island, N. Y. ; Madison, Summit, Jersey City, Union 

 County, N. J.; Baraboo, Wis.; Mt. Airy, Griffin. Ga. ; Sandwich, III.; 

 Montana; National City, San Francisco, San Diego, Los Angeles, 

 Fullerton, Cal.; Brantford, Stewarton, Ottawa, Canada, and Hawaii. 



Concerning the distribution and periodicity of attack of this species, 

 Mr. Schwarz of this office has pointed out (Proc. Ent. Soc. Washing- 

 ton, Vol. Ill, p. 145) that the insect does not occur so far as we know 

 out of doors, either in Montana or in neighboring states farther south, 

 although it is known to live outdoors in California. 



If it could be proved that it lived in Montana originally, we have a 

 case of rapid difiusion eastward analogous to that of the C'olorado 

 potato l)eetle, the weevil having spread to the Eastern States only a 

 few years after that Chrysomelid. There is this difference, however, 

 that the latter became disseminated mainly by flight, and the former, 

 a wingless insect, through the agency of man. 



RECENT INJURY. 



March 15, 1900, Mr. Willie A. Toole, Baraboo, Wis., sent speci- 

 mens of the larva of this beetle with the information that the insect 

 was very troublesome in greenhouses around the roots of rose-scented 

 geranium. They first eat the tine roots and then the larger ones, and 

 when they get through with the plant there is nothing left of the roots 



