33 



fessor Uhler's handwriting, " Tingis cmgulata Uhler MS. on beans, 

 Riley." The locality where Professor Riley made this observation is 

 probably St. Louis, Mo. , as most of the unlabeled material from the 

 Riley collection was obtained in the early seventies in the vicinity of 

 that city. As the facts concerning this species are meager, it was 

 thought best to describe the species in a periodical publication rather 

 than in our general series; hence Mr. Heide- 

 mann's description was sent to the Canadian Ento- 

 mologist, and appeared in the issue of October, 1899 

 (Vol. XXXI, p. 301). The species may readily be 

 determined by this description and by compari- 

 son with the illustration which is presented here- 

 with. 



It is, as stated by Mr. Heidemann, closely al- 

 lied to G. viridescens Champ., from Mexico and 

 Texas, but differs by the angulated sides of the 

 pronotum, by the larger number of areoles at the fig. 8.—GargapMa anr,u- 

 costal area, and the longer hairs at the edge of ^kJTif enlargcd 

 the pronotal margins and of the hood. It is also 

 allied to G. higrinervis Stal. , from Colombia and Mexico, but does not 

 have the discoidal area of the hemelytra abruptly closed behind by a 

 transverse, oblique raised nervure. 



THE DESTRUCTIVE GREEN PEA LOUSE. 



{Nectarophora destructor Johns.) 



Most remarkable of all the injurious occurrences of insects on edible 

 leguminous crops during the year 1899 was that of the green pea louse, 

 JYectarophora destructor Johns., which has overrun and laid waste fields 

 of peas from Nova Scotia and Canada to Virginia and Maryland. It 

 was first reported simultaneously from Virginia and Maryland, and has 

 already been the subject of communications' by Professor Johnson, 

 published in Bulletin No. 20 of this Division (new series, pp. 91-99) 

 and elsewhere. The notes which follow may be considered as supple- 

 mentary to Professor Johnson's articles; the object of the present 

 paper being to record the facts concerning injuries observed and 

 reported to this Division. 



INJURIOUS OCCURRENCES OF THE YEAE 1899. 



Injury was first reported to this office May 17, when we received 

 from Mr. Thomas Bridges, Bridges, Gloucester County, Va. , speci- 

 mens of the insect, with the report that it was destroying the pea crop 

 in that county. About 1,000 acres of peas were stated to be planted 

 there, and many farmers had already begun to plow them under. The 

 same day Mr. John T. Griffin, Portsmouth, Va., wrote us concerning 

 17591— No. 23 3 



