December, '09] JOURNAL OF ECONOMIC ENTOMOLOGY 431 



The Pit-Making Oak Scale 



Aster olecanium variolosum (Ratz.) 



Plate 19, Fig. 11 



Coccus variolosus Ratz., Tharander Jahrbuch, p. 187 (1870). 

 Asterolecanium quercicola Sign., An. Soc. Ent. Fr., 4, X, p. 279 (1870). 

 Lecanium quercicola Altnm, Forstzoologie, III, pt. 2, p. 365 (1882). 

 Asterodiaspis quercicola Riibs., Berl. Ent. Zeit, XXXIX, p. 200 (1894). 

 Coccus quercicola Eclist., Forstzoologie, p. 556 (1897). 

 Asterolecanium variolosum Ckll., Pr. Ac. N. Sci. Ph., p. 269 (1899). 



This species is the only one of its genus which is found outside 

 of greenhouses in the northern section of this country. It is a native 

 of the Palearctic region and lives only on various species of oaks. 



There have been many references in literature to this scale under 

 the name A. quercicola Bouche, but Bouche's original description un- 

 doubtedly refers to what is known as Aspidiotus zotiatus Frauenf. 

 Eatzeburg's description of variolosum is good and is illustrated by 

 fair figures. 



Reports are at hand of its occurrence in Massachusetts, Connecticut, 

 New York, Pennsylvania, Ohio, Michigan, Maryland, New Jersey, 

 Virginia, North Carolina, District of Columbia and Ontario. 



This scale is nearly circular in outline and somewhat convex:, 

 delicately ridged transversely, and yellowish-green to bronze green 

 in color when alive. After the death of the female the body shrinks, 

 and becomes reddish brown, the color showing through the anterior 

 part of the test. Diameter about 2 mm. The adult female lacks legs 

 and antennae and exhibits few microscopic characters other than the 

 marginal row of figure 8 pores. 



The Long-Tailed Mealy Bug 



Pseudococcus adonidum (Linn.). 



Plate 19, Fig. 1 



Coccus adonidum Linn., Syst. Nat., Ed. XII, p. 140 (1767). 

 Pseudococcus adonidum Westw., Mod. Class. Ins., I, Synop., p. 118 (1839). 

 Coccus Uliacearum Bouche, Stett. Ent. Zeit, p. 300 (1844). 

 Coccus tuliparum Bouche, Stett. Ent. Zeit., p. 301 (1844). 

 Coccus zamice Lucas, Bui. Soc. Ent. Fr., 3, V, p. CVII (1855). 

 Dactylopius longispinus Targ., Catalogue, p. 32 (1869). 

 Dactylopius lioyw Sign., An. Soc. Ent. Fr., 5, V, p. 317 (1875). 

 Dactylopius pteridis Sign., An. Soc. Ent. Fr., 5, V, p. 321 (1875). 

 Dactylopius longifilis Comst, Rep. U. S. Dep. Agr., 1880, p. 344 (1881). 



The general appearance of this soft, mealy, segmented scale-insect 

 is well shown in the accompanying plate. There are but few species 



