-159- 



Cupuliferae 



Quercus alba, L. (White Oak.) 

 Quercus obtusiloba, Michx. (Post Oak.) 

 Quercus macrocarpa, Michx. (Bur Oak.) 

 Quercus Prinus, L. (Chestnut .Oak.) 

 Quercus coccinea, Wang, (Scarlet Oak. ) 

 Quercus rubra, L. (Red Oak.) 

 Quercus palustris, Du Roi. (Pin Oak.) 



Castania vesca, L. (Chestnut.) 

 Fagus terruginea, Ait. (Am. Beech. ) 

 Fagus sylvatica, L. (Wood Beech.) 

 tragus v. purpurea, Ait. (Purple Beech. ) 

 Fagus v. laciniata, Lodd. (Cut-leaved 



Beech.) 

 Carpiuus Americana, Walt. (Hornbeam, i 



Betulaceae. 



Betula alba, L. (White Birch.) 

 Betula v. populifolia, Spach. (American 

 White birch.) 



Betula papyracea, Ait. (Paper Birch.) 

 Alnus serrula'ta, Ait. (Smooth Alder. 

 All. us incana, Willd. (Speckled Alder 



Salicaceae. 



Salix alba, L. (White Willow.) 

 Salix fragilis, L. (Brittle Willow.) 

 Salix Babylonica, Tourn. (Weeping 



Willow.) 

 Salix lucida, Muhl. (Shining Willow.) 

 Populus alba, L. (Silver Poplar.) 



Populus grandidentata, Michx. (Large- 

 toothed Aspen.) 



Populus tremuloides, Michx. (American 

 Aspen.) 



Populus angulata, Ait. (Angled Cotton- 

 wood.) 



Coniferae 



(Hemlock 



Abies Canadensis, Michx 



Spruce.) 



Larix Americana, Michx. (Am. Larch.) 

 Cupre ? sus thyoides, L. (White Cedar.) 



Taxodium distichum. 



Thuja occidentals, L. 



Juniper communis, L. 



Juniper Virginiana, L. 



(Bald Cypress.) 

 (Arbor Vita:. | 

 (Juniper.) 

 (Red Cedar.) 



A Note on the European Parasites and Food-Plants of 



Cryptorhynchus Lapathi. 



By L. O. Howard. 



In view of the interesting note of Mr. Jiilich in the October numher 

 of Entomologica Americana for the current year, upon the establishment 

 of Cryptorhynchus lapa/hi in this country and its damage to Willows in the 

 vicinity of New York, it may be interesting to record the European para- 

 sites of this somewhat destructive beetle. These are, among the Ichneu- 

 monidae, Ichneumon hassicus Ratz. , Pimpla cicatricosa Ratz. , Limneria 

 ruficeps Holmgr. , and Ephialtes tuberculatus Fourc. Among the Braconi- 

 dse, Rogas marginator Nees, Rogas sp. undet. , and Bracon immutator 

 Nees, have been reared from this insect ; while a solitary Proctotrupid — 

 Diapria melanocorypha Rtz —was reared from it by Ratzeburg. 



But one of these parasites has been found in this country and this is 

 Ephialtes tuberculatus Fourc., recorded by Mr. Cresson from U. S. and 

 Can., and bred from the Cryptorhynchus by Ratzeburg and by him de- 

 scribed as Campoplex gracilis. It will be noticed that the only parasite 

 reared by Mr. Jiilich — Ephialtes irritator Fabr. — is congeneric with this 

 last, and it will be interesting to observe, as the beetle becomes more 

 thoroughly domiciled with us, whether the native parasites which will 



