— 7— 

 margin is rather variable so that these characters are of spe- 

 cific vahie only in connection with others. 



Specimens received from Prof. Hunter, collected at 

 Lawrence, Kan. , from Qncrcus alba differ only in having the 

 second and third incisions apparently a little longer and 

 narrower. 



This species was originally described from specimens 

 collected from white oak [Qucrcits alba) at Ames, Iowa. 

 Specimens have been received from Lawrence, Kan., on the 

 same host, and Prof. T. U. A. Cockerell has reported the 

 occurence of this species in Georgia. It has been taken also 

 at Ames from ironwood (^Ostrya Virginicd). 



ASPIDIOTUS ANCYLUS Putnam. 



Diaspis atnylus. Putiuiin J. D., Trans. la. Ilort. Soc, Vol. XII, 

 p. :»;il. 1877. 



AspidiotHs amylus. Putnam, Proe. Davenport Academy Natur- 

 al Sciences, Vol. II, p. 346. Davenport, Iowa. 1S80. 



Female scale round, 5-6 mm. to i mm. m diameter; 

 male scale longer, about 5-6 mm. wide by \]A^ mm. long. 

 Both male and female scale same color, varying with host, 

 dark on maple or apple, gray when upon white bark of birch, 

 on some hosts wood beneath the scale turned to a pinkish 

 color; exuviae orange red. 



First pair of lobes of ultimate ventral segment of female 

 well developed, slightly separated, interior edges sub-parallel, 

 outer edges notched about three-fourths distance from base 

 to apex, interior edge usually plainly notched just below apex, 

 sides of notches straight, meeting at an angle of approximate- 

 ly 90 degrees, apex sub-truncate with corners rounded; 

 second pair lobes not extended beyond anal margin, apex not 

 markedly rounding, more nearly truncate, wide; third lobe 

 rudimentary, rudiment truncate. Incision between first and 

 second lobes wide, about equal in width at base and apex, 



