No.im NORTH AMERICAN THYSANOPTERA— HINDS. 173 



barrel-shaped and animlated; remaining segments narrower than these 

 two and more elongated; three and four fusiform; seven and eight 

 nearl}' cylindrical; eight very slender; one, two, and three nearly 

 ooncolorous, light yellow with tinge of gray or ])rown on one and 

 two; four and iive light yellow in basal half, shading to light brown on 

 apical half: six, seven, and eight uniforudy chocolate ])rown; segments 

 two to live annulated; spines slender, light colored. 



Prothorax transverse, about one-fifth wider than the head, twice as 

 wide as long and shorter than the head; sides round(Kl; without con- 

 spicuously large spines. Mesothorax about one and two-thirds times 

 as wide as the head; anterior angles prominent; mesonotum with deep 

 incision on posterior margin; metanotum with four spines standing in 

 a square near its center. Wings present, long, about one sixteenth 

 as broad as long; fore wings broadened at base, with two longitudinal 

 veins, the second l)ranching from the first not far from the base of 

 the wing. Spines upon veins of fore wing stout, dark colored, and 

 set at uniform distances; costa bears seventeen to twenty, fore vein 

 fourteen to seventeen, hind vein ten to thirteen, scale three to five 

 besides pair at its tip; spines on basal fourth of wing are light colored, 

 smaller and much less conspicuous; anterior fringe on both wings 

 fairly long and stout; posterior fringe long, slender, and dark colored. 

 Wings grayish brown to dark gra}", lighter between the longitudinal 

 veins; three nearly white cross bands; one across base before branch- 

 ing of veins, another at three-fourths the length of wing and the third 

 across the tip. Legs: All tibise, tarsi, and fore femora yellow; mid- 

 dle and hind femora dark brown, yellow only at ends; spines upon 

 legs small and inconspicuous except ten to twelve on inner side of 

 hind tibia?. 



Abdomen broadly ovoid, conical at tip, twice as wide as head; ovi- 

 positor long and slender; tenth segment split open above; segments 

 two to eight with dark cross line near anterior edge. Two or three 

 spines on sides of each segment from two to eight, not conspicuous; 

 anal spines weak. Color of abdomen yellowish brown to dark ])rown; 

 last two segments umch more 3"ellow, but shading to browni at poste- 

 rior edges. 



This species has the power of springing. 



No males found. 



Food 2jlant8. — Ainarillis sp., Aralia, Amm, Oestrum- nocturnum, 

 Chri/santheiim7n, Crinimi, cucumber, Dracaena %^^. ., Eucharh grandi- 

 p>ra,Fi(yus elastica.^ F. grandijiora^ Gardemia^ Gossypium, Hydrangea., 

 M'ma lohata, moonflower, Panda?im^ Phoefiix, Rlchirdia aethiopiea., 

 tomato, Ylth. 



Ilahlfat. — Helsingfors, Finland (Renter), United States: District of 

 Columbia; Amherst, Massachusetts. 



Life historv unknown. 



