THE CAMPHOR SCALE 



Ornamental plants — Continued. 



Oak (Quercus laurifolia rhom- 

 bica) 



Live oak (Quercus virginiana) 



American linden (Tilia ameri- 

 cana) 



Possurnhaw (Ilex decidua) 



Common locust (Robinia pseudo- 

 acacia) 



Tnliptfee (Liriodendron tulipif- 

 era) 



Chinese parasoltree (Firmiana 

 simplex) 



Black walnut (Juglans nigra | 



Black willow (Salix nigra) 



"Winged elm (Ulmus alata) 



Drummond maple (Acer rubrum 

 drummondii) 



Bed maple (Acer rubrum \ 



Southern magnolia (Magnolia' 

 grandifiora) 



Chinaberry (llelia azedaracli) 



American planetree (Plat an us oc- 

 cidental is) 



Lombardy poplar (Populus nigra 

 italica) 



S h u m a r d oak ( Q uercus sli u- 

 mardii) 



Maidenhair-tree (Ginkgo biloba) 

 Weeds : 



*Groundselbush (Baccharis hal- 

 i mi folia) 



*Morning-glory (Ipomoea lacu- 

 nosa and /. tricliocarpa I 



*Canada goldenrod (Solidago can- 

 adensis) 



Texas sage (Salvia coccinea) 



Wild aster (Aster sp.) 



Florida lettuce (Sonchus mulge- 

 dium) 



Tall iron weed (Ternonia dltis- 

 sima) 



Verbena (Verbena bonariensis) 



In addition to these hosts, the sea 

 ing plants from other countries : 



Azalea spp Japan (J, H). 



Eurija ochracea Japan (11, 12), Hawaiian Islands, India (12). 



Gardenia Argentina (li). 



" Kioku " Japan, Hawaiian Islands, India (12). 



"Mokkokn" Japan (15). 



Myrica rubra Japan {6, 12), Hawaiian Islands, India (12). 



Peony Japan (6, 14). 



Purple gumamela Philippine Islands (16). 



Rhododendron spp Japan (6, 12, 14) . Hawaiian Islands, India (12). 



Rhus succcdanea Japan (11, 12), Hawaiian Islands, India (12). 



Tea Japan (5, 11, 12), Hawaiian Islands, India (12). 



"Umame" Japan, Hawaiian Islands, India (12). 



Weeds — Continued. 



Inkberry (Ilex glabra) 



Prickly sowthistle (Sonchus as- 



per) 

 Big ragweed (Ambrosia trifida) 

 Beardgrass (Andropogon sp.) 

 Creeping dayflower (Commelina 



•nudi flora) 

 Tickclover (ileibomia sp.) 

 Mock-strawberry (Duchesnea in- 

 dica) 

 Wild flowers, vines, shrubs, and trees 

 other than timber trees : 



*Peppervine (Ampelopsis arborea) 

 *Heartleaf ampelopsis (Ampelop- 

 sis cor data) 

 *Poison-ivy (Toxicodendron radi- 

 cals ) 

 Carolina cherry-laurel (Prunus 



carolinia-na) 

 Frost grape (Vitis cordifolia) 

 American holly (Ilex opaca) 

 Dogwood (Corn us stricta) 

 Summer grape (Vitis aestivalis) 

 American elder (Sambucus canad- 

 ensis) 

 Chickasaw plum (Prunus angusti- 



folia) 

 Black cherry (Prunus serotina) 

 Texas boxelder (Acer negundo 



texanum ) 

 Oakleaf poison-ivy (Toxicoden- 

 dron pubescens) 

 Trumpetcreeper (Bignonia radi- 



cans) 

 Wild calla (Calla palustris) 

 Oxeye daisy (Chrysanthemum leu- 



canthemum) 

 Florida anisebush (Illicium flor- 



idanum ) 

 Wild grape (Vitis palmatal) 

 Wild plum (Prunus mexicana) 



le has been reported on the f ollow- 



DESCRIPTION OF STAGES AND HABITS 



The eggs, which are found beneath the covering of the female, are 

 oval in shape, with a lilac to purple coloring. The newly hatched 

 nymphs, or crawlers, are also oval in outline, nearly flat, and similar 

 to the eggs in color. When a crawler emerges from beneath the 

 covering, it wanders over the plant for 



short time before it 



