REPORT OF STATE ENTOMOLOGIST, 1898 213 



French, G.H. Insects of Illinois. 7th Report. 1878. p. 227 (men- 

 tion, as Lithopha7u^, 



Riley, C. V. Papilio. 1882. 2 : 102 (var. of antenna fa). 



Edwards, Henry & Elliot, S. L. Papilio. 1883. 3 : 135 (food 

 plant, larva described, as Litho^hnne). 



Edwards, Henry. U. S. National museum. Bulletin 35. 1889. 

 p. 92 (bibliography, th-s, Lithopha7ie), 



Packard, A. S. U. S. Entomological commission. 5th Report. 

 1890. p. 526 (reared from wild cherry, as Lithophant). 



Sm'th, J. B. U. S. National museum. Buretin44. 1893. p. 229 

 (li>ted); Catalogue of the insects of New Jersey. 1890. p. 319 (hsted). 



Lugger, Otto. Minn. Agricultural experiment station. Entomolo- 

 gist. 1st Report. 1895. 1896. p. 146 [p. 242 of the station report] 

 (dates of capture). 



Slingerland, M. V. Cornell agricultural experiment station. Bulle- 

 tin 123. 1896. p. 509, 516, 517, pi. 2, pi. 5, fig. a, d (general account). 



Howard, L. O. U. S. Dep't agriculture. Division entomology. 

 Technical series no. 5. 1897. p. 23 (parasite mentioned). 



L.ECANIUM TULIPIFER'AE Cooli"' 



Jiilip-tree scale 

 Ord. Hemiptera : Subord. Homoptera : Fam. Coccidae 



The tulip-tree is commonly unaffected by insects, but in this large 

 species o^ Lecanium it finds an enemy that occasionally causes consider- 

 able injury. Several twigs from a tulip-tree, showing a very bad condi- 

 tion of affairs (fig. 13), were received on October ri, from Mr Alfred 

 Pell, of Highland Falls, N. Y., with an inquiry as to the nature of the 

 attack. The insects were so crowded on portions of the bark, that the 

 old scales were huddled together and badly deformed. Under a lens 

 it was seen that thousands of young had established themselv^es in the 

 immediate vicinity of their parents, almost covering the bark in many 

 places (fig. 14), while a few occurred along the veins of the leaves. The 

 young were still issuing from the parents, as a number of paler indivi- 

 duals were to be seen crawling over the twigs. Branches of Magnolia 

 soiilangeana badly infested by this species have also been received 

 recently from Fishkillon-the-Hudson. , 



Earlier injuries by this species. In 1878 this scale insect was 

 mentioned by Prof Cook as one that frequently destroys tulip-trees in 



a Referred to L, tiliae Fitch by some authors. 



