GENUS PIOEINIA IK THE UNITED STATES. 81 



mm. in length and varying from brown to dark brown with frequently 

 a white secretionary margin, and inclosing the adult insect, which is 

 situated in the anterior portion of the scale. Length 1 to 1.25 mm. 

 Breadth about 0.50 mm. 



Eggs. — Yellow and arranged in a double row. 



Scale of male. — Wliite, tricarinate, larval exuvia pale yellow, 

 Length about 1 mm. Breadth about 0.40 mm. 



Female. — Thin and much contracted after oviposition, elongate, 

 possessing rudimentary antemise, which are apparently two-jointed, 

 the fhst consisting of a fleshy tubercle, which bears the second joint 

 and a bristle, the second joint occasionally possessing a short lateral 

 branch near the tip; anal plate triangular, 0.187 to 0.204 mm. in 

 Vtddth, slightly truncate at tip, median notch distinct and formed by 

 the median lobes, which are oblique and serrated along their entire 

 free edge; second lobes prominent both in second larval exuvia and 

 adult, incised, about twice as long as broad and followed by several 

 indentations ; margin of the pygidium exhibiting four rather con- 

 spicuous tubular pores; between the median lobes are two short 

 spines; loca,ted on the dorsal surface situated along the lateral 

 margin of the median lobe there are two spines, the posterior being 

 the larger, one on the outer lobule of the second lobe and two situ- 

 ated between the second lobe and the penultimate segment; on 

 ventral surface there is a spine corresponding with each dorsal spine, 

 except on the first lobe; laterad of each lobe there is an elongate pore 

 and two between the second lobule and the penultimate segment; 

 anal opening twice the vadth of one median lobe and far removed 

 from the tip; median and anterior lateral paragenitals contiguous, 

 forming an arch. 21 to 23, posterior laterals 10 to 16. 



Fiorinia Jlorinix japonica Kuw. 



Fiorinia fiorinise japonica Kuwana, Proc. Cal. Acad. Sci. (3), III, p. 79 (1902). 



Fiorinia fiorinise jajoomca Coleman, Journ. N. Y. Ent. Soc, XI, p. 84 (1903). Rec- 

 ord only. 



Fiorinia fiorinise japonica Leonard!, Redia, III, Fasc. 1, p. 36 (1905). Bibliography 

 and description. 



Fiorinia fiorinix japonica Kuwana, Bui. Imp. Cent. Agr. Exp. Sta., Japan, p. 200 

 (1907). Bibliography and record only. 



Fiorinia fiorinise japonica Brick, Sta. f. Pflanzenschutz z. Hamburg, XI, p. 6 (1909). 

 Record only. 



Fiorinia fiorinix japonica Brick, Jahxb. Hamb. v/iss. Anst., XXVII, p. 505 (1909). 

 Record only. 



Fiorinia fiorinise japonica Essig, Pom. Journ. Ent., II, 2, p. 207 (1910). Descrip- 

 tion and figure. 



Fiorinia fiorinise japonica Lindinger, Zeitschr. f. wiss. Insektenbiol., VII, 4, p. 126 

 (1911). Record oidy. 



Although this variety of fiorinise. is a native of Japan, it has been 

 introduced into this country on numerous occasions on infested ever- 



