72 OHIO STATE ACADEMY OF SCIENCE. 



Scale of male: Similar in color to scale of female, elongated; 

 exuvia subcentral, orange. 



Female: Three pairs of well-developed lobes, notched on outer 

 margin and narrowed at outer base; third lobe slightly smaller than 

 median and second lobes. Extending anteriorly from either margin 

 of the median and second lobes, and the inner margin of the third 

 lobe, are long clavate, chitinous processes; those on the outer margins 

 the longer. Outside of third lobe is a thickened, serrate, projection, 

 of the margin. Plates as long as lobes, fringed; two between median, 

 two between median and second, three between second and third 

 lobes, and outside of third lobe are two peculiarly fringed plates 

 longer than the lobes. Spines short and inconspicuous, borne on the 

 dorsal surface by each lobe and one close to penultimate segment; the 

 ventral spines are just laterad of the corresponding dorsal spines. 

 Dorsal pores in three rows; 1st (between median and second lobes) 

 of two, 2nd of three to four, 3rd of four to six. Four groups of cir- 

 cumgenital gland-orifices; anterior lateral, 3 — 4; posterior lateral, 2. 



Remarks : Occurs as a greenhouse species in the Northern 

 United States. Found in the Ohio State University Conservatory 

 on Ficus pumila var. minor, Palm, Faiidanus, and on a small 

 potted Arhor Vitae. 



CHRYSOMPHALIJS OBSCURUS (Comst.) 



Aspidiotus obscurun Comst., Rep. U. S. Dep. Ag., 1880, p. 303 (1881). 



Chrysomphalus obscurus Leon., Riv. Pat. Veg., vii, p. 205 (1899). 



Aspidiotus obscurus Hunter, Kan. Univ. Quar., viii, p. 7 (1899). 



Aspidiotus obscurus Hunter, Kan. Univ. Quar., ix, p. 107 (1900). 



Scale of female: Very dark gray, only slightly convex and agree- 

 ing in color with the bark of host is difficult to detect; exuviae jet 

 black. 



Scale of male: Similar to scale of female in color, oval, convex 

 anteriorly. 



Female: Three pairs of well-developed lobes and the posterior 

 tip of the thickened and notched margin of the segment apparently 

 forming a fourth lobe. Median pair broad, rovmded; second and third 

 pair rather close, converging and serrate on the outer margin. Eight 

 short club-shaped, chitinous processes on each side of the meson; two 

 bounding the first incision, the inner much the larger; three at second 

 and third incisions respectively, the middle one the larger and longer. 

 The plates are short and inconspicuous, one between the median lobes 

 and the median and first lobes respectively; two between second and 

 third lobes and two slightly furcated ones laterad of third lobes. On 

 the dorsal surface, spines are borne at the outer base of second and 

 third lobes; one laterad of third incision, and one about one-half of 



