.•68 OHIO STATE ACADEMY OF SCIENCE. 



lobes to the penultimate segment. Between the third and fourth pairs 

 of spines, there are three or four irregular, spine-like extensions of the 

 margin of the segment. Four or five groups of circumgenital gland- 

 orifices are present; Median, 0-G, (rarely more than three); anterior 

 lateral, 5-14; posterior lateral, 4-8. Rows of dorsal pores sometimes 

 quite prominent. 



Remarks: This scale popularly known as "Putnam's 

 Scale," is not an important economic insect per se, but the possi- 

 bility of mistaking- the San Jose' Scale for this one, attaches to 

 it more importance. The scales arc lighter in color, and the ' ' dot 

 and ring" is not nearly so prominent as in the San Jose' Scale. 

 Remedial measures for the latter are fully as effective for Put- 

 nam's Scale. 



ASPIDIOTTJS COMSTOCKI Johnson. 

 Fig. 9. 



A. comstocki Johns., Ent. News, vii, p. 151 (189G). 



A. comstocki Johns., Bull. 111. St. Lab. Nat. Hist., iv, p. 383 (1896). 



Scale of female: The shape depends upon the position upon the 

 leaf, but usually approaches a semicircular form, attached close to the 

 midrib, veins or veinlets of the leaf. Length, 1.5 — 2 mm., width, 0.5 — 

 J mm. Large, rather flat, cream-buff, excepting the part which covers 

 the exuviae which varies from yellowish to reddish-brown, or is often 

 concolorous. 



Scale of male: Length, 1mm., width 0.5 mm. Cream-buff or 

 grayish-M'hite, semi-transparent, more or less elongate oval. Exuvia 

 submarginal. 



Female: There are two pairs of well-developed lobes, the second 

 pair often as long or longer, and as broad as the median pair, which 

 are commonly notched on the lateral margins near the tip. Plates 

 conspicuous. Between the first and second lobes, they are more or less 

 toothed and about as long as median lobes; laterad of second lobe is a 

 broad circular fringe; laterad of this are three large toothed plates. 

 Spines prominent; a pair at outer base of median lobes, a pair at outer 

 base of second lobes, the third on the rudimentary third lobe, and the 

 fourth just laterad of the plates. Four groups of circumgenital gland- 

 orifices; anterior lateral, about G; posterior lateral, 4. 



Remarks: Found on the leaves of Sugar Maple. {Acer 

 saccharum) at Columbus, Ohio, associated with Phenacoccus 

 acericola (King). 



