Eleventh Report of the State Entomologist 245 



Blanket-flower [GaillarJid). Tomato {Lycopcrsiciii/i csciilejitiwi). 



Cone-flower {Rudbcckia). Tobacco [Nkotiana tabaciufi). 



Catnip {Nepe/a cataria). ^2iVn^%\.oyNnys^^A{Datiira stramonium). 



Heal-all {Brunella vulgaris). Garden leek {Allium porrum). 

 Four o'clock {Mirabilis). Onion. 



Distribution. 



The distribution of this Thrips is an extensive one, in both Europe 

 and the United States, but how generally throughout these countries we 

 are unable to state. From Mr. Pergande's paper we have the following 

 localities: Russia, Germany, Bermuda, Massachusetts, Connecticut, New 

 York, New Jersey, Pennsylvania, Virginia, Ohio, Illinois, Iowa, Colorado, 

 and California. 



The Insect Described. 



It is a little over i mm. long, and varies from a yellowish-green 

 color in the wingless, immature forms to a brownish-yellow and even 

 black in the mature winged insect; in the latter the eyes and the tips of 

 the mouth-parts are a dark-brown color. 



The antennae are composed of seven subequal segments ; the terminal 

 one apparently single but under a high power, is seen to be composed of 

 two minute segments, the apical one not sharply separated from the 

 seventh (Plate XV, fig. i<?). The lateral aspect of the head is shown in 

 figure 2, on Plate XV, in which are represented the minute palpi and the 

 general form of the conical mouth-parts. 



The four wings are semi-transparent, and with an expanse greater than 

 the length of the body (Plate XV, fig. i) ; stout bristles occur along the 

 anterior margin and the veins ; the outer two-thirds of the posterior 

 margin of the fore wing is thickly fringed with long wavy hairs; in the 

 hind wings the fringe along the posterior margin extends to the anal 

 angle, though that of the inner third is thinner. 



The lateral aspect of the tip of the female abdomen is represented in 

 figure 3 of the same plate. On the ventral surface there is a pair of 

 curved saws, which are coarsely serrate along the concave edge and 

 finely serrate on the opposite border. 



Described from 30 specimens mounted in balsam. 



Life-History of the Insect. 

 A brief abstract of the life-history of this species based upon the valuable 

 work of Dr. Lindeman, in Russia {Joe. ci/.), is given, as almost nothing 

 concerning it has been published in this country. 

 17 



