INDEX OF HOST TREES 



271 



Sycamore (continued) 

 in wood — (continued) 

 flatheaded borers — 

 Dicer ca horni, 190 

 Polycesta spp., 191 

 roundheaded borer, Rosalia funebris, 198 

 on twigs — 



scale, Lepidosaphes ulmi, 66 

 under bark of large trunk or branches — ■ 

 clear-winged moth, Ra»iosia mellinipennis , 

 200 

 Tanoak (Lithocarpus rfensiflorus) — 

 in smaller limbs, twigs, or trunk — 

 twig girdler, Agrilus angelicus, 46 

 in wood — 



ambrosia beetle, Monarthrum scutellare, 

 186 

 Willow (Salix spp.) — 

 attacking leaves — 

 leaf beetles — 



Altica ambiens, 123 

 Chrysomela calif ornica, 125 

 Chrysomela interrupta, 125 

 Chrysomela lapponica, 125 

 Chrysomela scripta, 124 

 Galerucella decora, 124 

 leaf chewers — 



Halisidota maculata, 88 

 Hemerocampa vetusta, 93 

 Hemileuca juno, 86 

 Hemileuca maia, 86 

 Hemileuca nevadensis, 86 

 Hyphantria cunea, 88 

 Hyphantria textor, 89 

 Malacosoma californica, 95 

 Malacosoma disstria, 94 

 Malacosoma fragilis, 94 

 Notolophus antiqua, 93 

 Platysamia cecropia, 86 

 Platysamia euryalus, 86 

 Platysamia gloveri, 86 

 Pseudohozis eglanterina, 86 

 Stilpnotia salicis, 93 

 Telea polyphemus, 86 



Willow {continued) 



attacking leaves — (continued) 

 leaf miners — 



Phyllonorycter apicinigrella, 115 



Phyllonorycter salicifoliella, 115 

 sawflies — 



Cimbex americana, 122 



Cimbex pacifica, 122 



Cimbex rubida, 122 



Trichiosoma lanuginosa, 122 

 in smaller limbs, twigs, or trunk — 

 flatheaded borers — 



Anthaxia aeneogaster, 47 



Chrysobothris femorata, 47 



Chrysobothris mali, 47 

 roundheaded borers — 



Oberea ferruginea, 47 



Oberea quadricallosa, Al 

 twig beetle, Micracis hirtellus, 39 

 twig girdler, -'Agrilus politus, 46 

 twig weevil, Magdalis gracilis, 42 

 in wood — 



ambrosia beetle, Xyleborinus saxeseni, 187 

 carpenter worm, Prionoxystus robiniae, 199 

 clear-winged moths — 



Aegeria tibialis pacifica, 200 



Paranthrene robiniae, 200 

 flatheaded borers — 



Chrysobothris spp., 190 



Dicer ca prolongata, 190 



Polycesta spp., 191 

 roundheaded borers — 



Malacopterus tenellus, 198 



Rosalia funebris, 198 



Synaphaetae guexi, 198 



Xylotrechus insignis, 197 



Xylotrechus annosus, 197 

 weevil, *Cryptorhynchus lapathi, 198 

 on twigs — 



scale, Lepidosaphes ulmi, 66 

 under bark of large trunk or branches — 

 clear-winged moths — 



Aegeria tibialis pacifica, 200 

 roundheaded borer, Saperda calcarata, 174 

 Yew, Pacific (Taxus brevifolia) , 5 



