N&w Species of Scale Insects. 383 



This species hibernates as a partially matured insect, 

 and is double brooded in the latitude of Springfield, 

 Illinois. The mature males begin to emerge about the 

 middle of April, and the first brood begins to appear 

 early in May; but young and eggs of the same brood 

 are often found as late as June 20. The mature males 

 for the second brood begin to appear about July 10 

 and continue to emerge until about August 1. The 

 young of the second brood first appear about the first 

 week in August, and may be found until late in Septem- 

 ber. It is quite possible that there are three broods in 

 the southern part of this State. 



The species is related to Aspidiotus ancylus Putnam, 

 but may be readily distinguished from that species by 

 its size, its coloration, and by the presence of the second 

 pair of lobes and the spinnerets on the last segment. 

 The mature male is larger and has a greater wing ex- 

 panse than ancyhis. 



Aspidiotus comstocki sp. n. (Plate XXX.; and Plate 

 XXXI., Fig. 1 and 2.) 



Scale of female. — The general shape of the scale of the 

 female depends almost entirely upon its position on the 

 leaf. It is generally attached close to the midrib, veins, 

 or veinlets on the under side of the leaf, and conforms, 

 to a certain extent, to the angle formed by the veins. 

 The commonest form is that shown at c. Fig 6, Plate 

 XXX. The side next the vein is slightly curved, some- 

 times nearly straight, and the scale varies in length from 

 1.5 to 2 mm., and in width from 0.5 to 1 mm. The 

 exuvijB are near the center of the margin next the vein. 

 The large, well-developed, rather flat scales are cream- 

 buff, excepting that part which covers the exuvijT', which 

 varies from yellowish to reddish brown and is often con- 

 colorous. 



Scale of male. — The mature male is cream-buff or gray- 

 ish white, more or less elongate-oval, and about 1 mm. 

 long by 0.5 mm. wide. The larval scale is at the an- 



