54 OHIO STATE ACADEMY OF SCIENCE. 



Hemichionasipis aspidistrae (Signoret). 

 Fig. 38. 



Chionaspis aspidistrae Sign. Ann. Soc. Ent. Fr. (4), ix, p. 443 

 (18G9). 



Chionaspis latus Psyche, vii, SuppL, i, p. 21 (1896). 



H. aspidistrae Cooley, Spl. Bull. Mass. Exp. Sta., p. 45 (1899). 



Scale of female: Length, 1.8 — 2.5 mm. Decidedly broadened 

 posteriorly, rather strong in texture, yellowish-brown or brown. Ex- 

 uviae concolorlous with the scale but brighter. 



Scale of male: Distinctly tri-carinated, 1 — 1.3 mm. in length. 

 Exuvia bright yellow. 



Female: Long, broadest near the middle; the four segments 

 anterior to the pygidium are produced laterally almost into protuber- 

 ances, at least very conspicuous. Two pairs of well-developed lobes, 

 third pair rudimentary. Median lobes two or three-notched on outer 

 margin; the two lobes forming a semi-circle and a chitinous club- 

 shaped thickening extending anteriorly, all much darker than the other 

 lobes. The second lobe is widely separated from the median by a 

 prominence bearing a marginal gland-orifice. Lobules of second lobe 

 long and spatulate, the inner the longer and with thickened margins 

 at the base. The gland-spines are arranged as follows: 1, 1, 1, 1, 2-4. 

 Second row of dorsal pores and anterior groups of third and fourth 

 rows absent; posterior groups of third and fourth rows with 2-5 each. 

 Median group of circumgenital gland-orifices, 5-15; anterior lateral, 

 14-22; posterior lateral, 15-23. 



Remarks : This species can be easily distinguished from 

 II. tlteae (Mask.) by comparing the broad, ovate exuvia of H. 

 aspidistrae with the narrowly elliptical exuvia of H. tlteae. 

 Found on Shield Fern (Cyrtomium falcatum) in the Ohio State 

 University Conservatory. 



Fiorinia fioriniae (Targ.) 

 Fig. 21. 



Diaspis fiorinia Targ., Studii sub. Cocc, p. 14 (1867) 



Fiorinia earnettiae Comst., Rep. U. S. Dep. Ag., 1880, p. 329 (1881). 



fiorinia fioriniae Ckll., Ent. Mon. Mag., xxix, p. 39 (1893). 



Scale of female: Yellowish-brown, with first exuvia yellow, and 

 remainder of scale a white thin margin. There is a central, longitudi- 

 nal, dark-brown ridge, and sloping parallel sides more or less wrinkled. 



Scale of male: Similar to scale of female but smaller. 



Female: Two pairs of lobes. The caudal extremity of the seg- 

 ment is deeply notched, the median lobes are borne by the margins 

 ■of this notch; they are confluent at base but widely divergent at apex. 

 The second lobe is deeply incised, the mesal lobule the larger The 



