Peony (Pxonia sp.). 
Peppergrass (Lepidium suffruticosum 
Linn., Cav.), France. 
Planer a keakei C. Koch. 
Plum (Primus domestica Linn.). 
Poplar, Lombardy (Populus nigra var. 
italica Du Roi). 
Poplar, white (Populus alba Linn.). 
Quince (Cydonia vulgaris Pers.). 
Raspberry (Rubus idxus Linn.). 
Rose (Rosa rugosa Thunb.). 
Sassafras (Sassafras sassafras Karst.). 
Silverberry (Elxagnus argentea Pursh.). 
Spirxa spp. 
Spruce (Abies firma Sieb. & Zucc). 
Sycamore (Platanus sp.). 
Tallow tree (Sapium sebiferum Roxb.). 
Tamarisk (Tamarix afrirana Poir.). 
Tree of Heaven (Ailanthus glandulosa 
Desf.). 
Tulip-tree (Liriodendron tulipifera Linn.). 
Umbrella tree (Magnolia tripetala Linn.;. 
Viburnum sp. 
Virginia creeper (Ampelopsis quinquffolia 
Michx.). 
Willow, goat (Salix caprea Linn.). 
Willow, Napoleon (Salix babylonica 
Linn.). 
Willow, osier (Salix viminalis Linn.). 
Willow, (Salix xgyptiaca Forsk.). 
Willow, (Salix pedicellata Desf.). 
Walnut, English (Juglans regia Linn.). 
Walnut (Juglans sp.). 
Yucca ( Yucca sp. i. 
Algeria. 
PARASITIC AND PREDACEOUS ENEMIES. 
Minute parasitic Ilymenoptera are often efficient enemies of this 
scale, and in some localities they apparently hold the insect in check. 
If these little friends are present, small round holes can be seen on the 
dorsal part of the scale showing where the adult escaped. Those 
more commonly found are Aphelinus mytilaspidis Le B., A. abnormis 
How., A. fuscipennis How., A. diaspidis How., Aspidiotij^agus 
cilrinus How., Anaphes gracilis How., and Cheiloneurus diaspidinanim 
How. 
The larvoR of coccinellids, or ladybeetles, are sometimes found feed- 
ing on these insects, and certain species of mites assist in their de- 
struction. Birds are also credited with doing service, the most elli- 
cienl being the titmice and tree creepers. 
THE SCURFY SCALE. 
( 'hionaspis furfura Fitch, i 
The scurfy scale, while infesting a considerable number of plants, 
is a less general feeder than is the preceding species. It occurs prin- 
cipally upon rosaceous plants, such as the apple, peach, pear, plum, 
cherry, etc., and also on currant and gooseberry among cultivated 
plants, hut seldom becomes so abundant as to cause particular in- 
jni\ or to require spec die treatment. The insect may be recognized 
from the accompanying illustration (fig. 2), much enlarged. The 
scale of the female is dirty gray in color, irregularly pear-shaped, as 
shown in the picture. The male scales are much smaller, elongate, 
snow\ white, with three distinct keels extending longitudinally 
along the back. Unlike the former species, the scurfy scale is a 
native North American insect, and appears to be less adaptable to 
[Clr. iui I 
