44 



spicuously clouded with dull black, as ligured. The tail is short and 

 inconspicuous; the nectaries are clavate, reaching- to the tip of the 

 abdomen. The species is somewhat remarkable on account of the incon- 

 stanc}^ of the wing- venation. Certain of the terminal veins are often 

 wanting, as illustrated at 1>. The apterous or wingless female, shown 

 atf', and the last stage of the nymph, (c/), are of similar general color 

 to the winged form, but usuall}^ paler. 



The length of the bod}' and head together is about ^^ <^*'^ •'" i'l*'^ 

 (nearlv 2'"'") and the wing expanse aoout \ of an inch (5-(i"""). 



Fig. l'>.—l!lii)p(ilosiphuiii. riobr: a., winged female; h, win.i; of saine, showing aberrant venation; 

 r, wingless (agamie) female: d, nymph— m11 innc'li enlarged (original). 



DTSTRTBTJTION. 



This plant-louse is of doubtful nativity. The fact that it appears to 

 contine its attack to plants grown indoors would indicate a tropical 

 and therefore foreign origin; Init as the species has been described 

 from this country, and is not known elsewhere, it will have to be con- 

 sidered native until we learn to the contrary. The present distribu- 

 tion includes the following localities, the list being necessarily small 

 on account of the newness of this insect as a pest: Toronto, Canada; 

 Poughkeepsie, Rochester, and Cornwall-on-Hudson, N. Y. ; Newton 

 Center, Mass. ; Providence, R. I. ; Garrett Park, Waverly, Brooklyn, 

 and elsewhere in Maryland; District of Columl)ia; Gordonsville, Va. 



DIVISIONAL RECORDS OF INJURY. 



In August, 18i)S, Mr. Dorsett visited Mr. Theodore Diedrich at 

 Anacostia, D. C, and ascertained from that gentleman that this 

 species had done immense injury to violet blossoms, the cash estimate 

 of his losses being placed at $1,000 to $1,200 for that year. 



