COCCIDAE OF OHIO. 63 



tinctly two or three notched on outer margin. Third lobe rudimentary 

 and raised to a point. A small chitinous process at inner base of 

 median lobes; chitinous processes bounding first and second incision, 

 the inner the larger. A pair of simple, inconspicuous plates between, 

 median lobes and one or two bifurcated ones caudad of each incision. 

 Spines prominent, borne on the dorsal surface, one by each lobe, one 

 one-third and another two-thirds of distance to penultimate segment. 

 On the ventral surface, they are laterad of the corresponding dorsaL 

 spines. Rows of dorsal pores very noticeable and complete; first row 

 of 3-4; second of 18-24; third of 20-22; fourth, in an irregular row, of 

 14-18. Five groups of circumgenital gland-orifices; median, 0-5; anter- 

 ior lateral, 8-16; posterior lateral,. 4-8. Anal orifice small, level with 

 third dorsal pore of first row. 



Remarks : This scale which was first described from English 

 Walnut (Juglans regiae) by Prof. Comstock in 1880, has been 

 found infesting various other trees, including some of our more 

 valuable fruit trees, such as peach, apricot, plum, black cherry 

 and pear. It has little economic importance in Ohio. 



Aspidiotus lataniae Signoret. 

 Fig. 18. 



A. lataniae Sign., Ann. Soc. Ent. Fr., (4), ix, p. 124 (1869). 



Scale of female: Rather elongated, convex, clear-yellow, trans- 

 hicid at center, dirty white at margin of lar.ge elliptical exuviae. 



Scale of male: Similar to the scale of the female in color, smaller 

 and elongated. 



Female: Mesal lobes only present, large, prominent, nearly as 

 broad as long, notched on both margins, the inner notch much the 

 smaller and nearer the apex. Two large interlobular incisions 

 bounded by chitinous processes, the inner the larger, and one very 

 small one, bounded by small chitinous processes, laterad of second 

 incision. Usually a small chitinous process at inner base of median 

 lobes. Two simple plates between median lobes; two incised plates 

 caudad of first and second incision and one or more between them. 

 Outside of the small third incision, the margin of the segment is 

 produced to appear almost like two or three simple plates. On both 

 dorsal and ventral surfaces, spines are located as follows: at outer base 

 of median lobes, between first and second incision, just outside of 

 second incision, and one about one-half of distance to the penultimate 

 segment. Four groups of circumgenital gland-orifices; anterior lateral, 

 4-6, posterior lateral, 3-4. Second and third rows of dorsal pores of 

 8-12 each, rather straight and distinct although interrupted. Anal 

 orifice large, rather remote from the margin. 



