2o8 NEW YORK STATE MUSEUM 



appearing at Amherst IMass., according to Professor Cooley, about the 

 middle of May and all emerging within a very short time. Professor John- 

 son's observations show that the insect is two brooded and that the females 

 confine themselves to the bark of the tree, and may be found from the 

 trunk to the very tips of the twigs. The males occur both on the bark and 

 on the underside of the leaves. The female is stated to lay about 70 eggs 

 as a rule, but the number varies from a very few to about 85. 



Distribution. This is a native American species and appears to have a 

 wide range, it having been recorded from a number of eastern and western 

 states. 



Description. The eggs are about ' 12 inch in length, ellipsoidal and pur- 

 plish in color. The young are about ^ 5 inch in length, oval in outline, 

 broadest posteriorly, reddish, and with distinct anal filaments, about as long 

 as the width of the middle of the body. The female scale is usually 

 broadest near the middle, about 's inch in length, convex, moderately thick 

 and white, though often coated b\- black particles from the bark. The 

 exuviae are long, brown, frequently almost completely hidden by the adher- 

 ent coatings. 



Natural enemies. I'rofessor Johnson has reared two parasites from this 

 insect, Perissopterus pule hell us How. and Physcus vari- 

 cornis How. He has also observed the )-oung and adults of the twice 

 stabbed ladybug, C h i 1 o c o r u s b i v u 1 n e r u s Muls., feeding on it. 



Bibliography 

 1899 Cooley, R. A. Mass. Agric. Exp. Sta. Spec. Bui. p. 41-4.3 



Tuliptree scale 

 Eidecaniuin talipjjo'ae Cook 

 Large, nearly hemispheric brownish scales occurring in clustered masses on the 

 underside of the limbs of tuliptrees. 



The tuliptree Is commonly unaffected by Insects, but In this large 

 species of Eulecanium It finds an enemy that occasionally causes con- 

 siderable injury. Several twigs from a tuliptree, showing a very bad con- 



