COCCIDAE OF OHIO. 71 



Remarks : This species infests citrus trees, many palms, 

 oleanders and other ornamental plants. It is a serious pest in 

 conservatories, multiplying with astonishing rapidity. 



Chrysomplialus aurantii (Mask.) 

 Figs. 1.5, 16. 



Aspidiotus aurantii Mask., N. Z. Trans., xi, p. 199 (1878). 



Aspidiotus amantii Comst., Rep. U. S. Dep. Ag., 1880, p. 293 

 (1881). 



Chrysomx>halus aurantii CklL, Check. List, Suppl., p. 396 (1899). 



Scale of female: Light gray, translucent revealing the orange 

 or reddish insect beneath. Central nipple-like exuviae similar to Ch. 

 aoniduni. Diam. about 2 mm. 



Scale of male: Resembling female scale; with posterior gray flap. 

 Exuvia lighter in color. Diam. 0..5 — 0.6 mm. 



Female: Of a light-brown color and reniform shape; the thoracic 

 segment extending posteriorly, exceeding tip of pygidium. Three pairs 

 of well-developed lobes; median deeply notched on both margins, the 

 mesal notch posterior to the lateral. The second and third pair are 

 notched about midway on their lateral and often on their mesal mar- 

 gins. Laterad of the third lobe is a lobe-like, serrate projection of the 

 segment. Extending anteriorly from either margin of the second, the 

 lateral margin of the median and the mesal margin of the third lobes, 

 are short spatulate chitinous processes. The plates are all deeply 

 fringed on their lateral margins and exceed the lobes in length. Two 

 between median, two between median and second, three between sec- 

 ond and third lobes, and three compound plates between the third 

 lobe and the serrate mai-gin of the segment. On the dorsal surface, 

 each lobe bears a spine. On the ventral, there is a spine at the lateral 

 base of each lobe except the median. Dorsal pores not prominent, in 

 three series ; first of 2 — 3 ; second of about 10 ; third of about 7. Groups 

 of circumgenital gland-orifices are absent. 



Kemarks : This species infests Citrus trees principally, 

 although palms, etc., are affected. It multiplies rapidly and has 

 caused much loss to growers of citrus fruits. ■ 



CJi7'!/somp]ialns dictyospermi (Morg.) 

 Fig. 17. 

 Aspidiotus dietyospermi Morg., Ent. Mon. Mag., xxv, p. 352 (1889). 

 A. ( Chrysomjyhalus) dictyos2)ermi Ckll., Bull. 6, T. s., Dep. Ag., 

 p. 23 (1897). 



Scale of female: Grayish-white, oval, depressed; exuviae central, 

 light-yellow to dark-orange. 



