COCCIDAE OF OHIO. 31 



AA. Scale of female elongated, with exuviae at one extremity, 



E. Scale of male similar to scale of female, smaller, 



F. Scale of female with sharp, central, longitudinal ridge 



Fiorinia, p. 54 

 FF. Scale of female plain, convex or flattened Lepidosaphes, p. 73 

 FFF. Scale of female plain, with very large exuviae Parlatoria, p. 75. 

 BE. Scale of male white, small, with parallel sides, and cari- 

 nated (except in two species) 



Hemichionaspis, Chionaspis, pp. 53, 43 

 AAA. Scale of female usually mining under the epidermis of 



the host Howard!, p. 51 



SYSTEMATIC TREATISE OF OHIO SPECIES 



Subfamily ORTHEZIINAE. 

 Under this subfamily are included only three genera, viz.^ 

 Orthczia, Newsteadia and Ortheziola, neither of the last two 

 named being represented in the United States. 

 Genus ORTHEZIA Bosc. 

 Mr. C. P. Lounsbur.y, in his paper on Ortliezia, published as 

 a part of the 32nd Rep. of the Mass. Agricultural College (1894), 

 gives the following generic characters for Ortliezia : 



"Adult Male: Head, thorax and abdomen distinct. Eyes and 

 ocelli present. Antennae long, filiform, nine-or ten-jointed. Wings, 

 two, diaphanous with one furcate nerve. Halteres, each with a bristle 

 which hooks into a pocket in the base of the wing. Legs long, 

 pubescent, with one claw, no digitules. Two or more long, slender, 

 snow-white filaments pi'oject from near the posterior end. 



Adult Female: Head, thorax and abdomen not separated. An- 

 tennae eight-jointed; nine-jointed in maennrbni'is (Doug.). Tarsus 

 with one claw without digitules. Eyes simple. Anal ring with six 

 setae. Body more or less covered with cereous matter arranged in 

 compact symmetrical plates. The eggs are laid in an elongated ovisac 

 which projects behind the body, and are there carried until they hatch. 

 The insect is active throughout its entire life." 



OrUiezm ixslgais Douglas. 

 Fig! 5G. 

 O. insignis Doug., Jn. Quekett Micr. Club, p. 169 (1887). 

 O. insignis Doug., Ent. Mo. Mag. xxxiv, p. 1G9 (188). 

 O. insignis Lounsb., 32nd Rep. Mass. Ag. Coll., p. Ill (1895). 

 Adult Female: Body broad oval; width, 1.2 mm., length, 1.5mm., 

 exclusive of lamellae, ochreous mottled to dark green; distinctly seg- 

 mented. Arranged around the body beginning with the second thoracic 



