BEECH INSECTS. 39 



B. OTHER IMPORTANT BEECH PESTS. 



HEMIPTERA. 



'^^^pfefoThlorus exsiccator AltVLm, anoamigratory plant louse; middle Europe; very injurious to the twigs 

 and stems of young trees. 

 ^Phyllaphisfagi Linnaeus, nonmigratory plant louse; Europe; feeds on foliage. 



Coccidae: 



Unarmored— ... , „ ^ 



CcBiostomidia as«imji!s Maskell; New Zealand; viitQ.c^s Fagus menziesn a.nA F.fusca. 

 Caslostomidia pilosa Maskell; New Zealand. 

 Cr!/p<ococcM« /tti/i Baerensprimg; Europe; Fagus sylvatica. 

 Eriococcus accris Signoret; Europe; Fagus silvatica. 

 Eriococcus fagicorticus UaskeXl; New Zealand; Fagus fusca. 

 Eriococcus pallidus UaaV-elV, New Zealand; Fagus fusca. 

 ETiococcii,s raithbyi Maskell; New Zealand; Fagus mcnziesii. 

 Oossyparia cavelUi Maskell; New Zealand; Fagus menziesii. 

 Inglisiafagi Maskell; New Zealand. 

 Phenacoleachia zealandka Maskell; New Zealand. 

 Pulvinaria bctulx Linnixus; Europe; Fagus sylvatica. 

 Rhizncoccus intermedlus Maskell; New Zealand; Fagus mcnziesii. 



Rhizococcus pulchellus Ua,ske\l; New Zealand; Fagus fusca, F. menziesii, F. cliff ortioides. 

 Rhizococrus totarx Maskell; New Zealand; Fagus menziesii. 

 Ripersia fagi Uaskell; New Zealand; Fagus menziesii. 

 Solenococcus fagi Maskell; New Zealand. 



COLEOPTERA. 

 .'inobiiilas. 



XestoMum plumbeum Illiger; Europe; injures wood for technical purposes. 

 Xestobium rufovillosum De Geer; Europe; injures wood for technical purposes. 

 Ptilinus pectinicornis Linnaeus; Europe; bores in wood. 



Athous'subfuscus Muller, a snapping beetle; Europe; larvae destroy germinating beech. 



Lymexylonidae. 



Hylecoetus dcrmestoides Linnaeus; Europe; breeds in bark and wood. 



Amphimallon solstitialis Linnseus; Europe; develops like the June beetle at the roots of trees. 

 Melolontha hippocastani Fabricius, and M. melolontha Linnaeus; Europe; also breed at the roots of 



seedlings and as adults feed on the foliage. 

 Polyphyllafullo Linnaeus; Europe; breeds at the roots of trees and the adults feed on the foliage. 



Agrilus angustulus Illiger, A. biguttatus Fabricius, A.clongatus Herbst, and *^.win(J(s Linnajus (see 

 Oak); wood borers; Europe; attack bast and sapwood, especially of yoimg trees. 



f prjiiiibvcldjc* 



Callidium xncum DeGeer; and C. vinlaccum Linnajus; long-horned wood borers; Germany; attack 



wood of felled trees and lumber. 

 Saperda scalaris Linnaeus; Europe; bores in wood. (See Poplar.) 



Chrysomclldse. 



Haltica quercctorum Foudr.; a leaf beetle; Germany. (See Oak. ) 



Brachyrhinidae. 



Strophosoma capitata De Geer, and S. melanogramma Forster, weevils; Europe; adults feed on the 



leaves and buds of seedlings. 

 Polydrusus cervinus Linnffius, P. chrysomela Olivier, P. griseomaculatus Desbrochers, P. lateralis Gyl- 



lenhal, P. micans Schonherr, P. mollis Stroem, P. picus Fabricius,* P. sericeus Schall., and * P. 



viridicollis Baudi, weevils; Europe; as adults feed on buds and foliage; probably breed at the roots 



The two latter species have been introduced into the United States. 

 Phyllobius argentatus Liimaeus, P. urticx De Geer and P. viridicollis Fabricius; weevils; Europe; 



adults injure buds and leaves. 



Attelabldae. 



Apoderus coryli Linnaeus, a leaf rolling weevil, Europe; larva breeds in the leaf rolls. 



Rhynchites alni Muller and Rhynchites betulae Linnaeus, leaf rolling weevils; Europe; larvae breed in 



the leaf rolls. 

 Byctiscus betulx Linnaeus, a leaf rolling weevil; Europe. 



