Eighth Report of the State Entomologist. 153 



Change to the Perfect Stage. 

 A few days thereafter, on June 26th, the perfect winged forms 

 were disclosed, showing them to be Clastoptera 

 obtusa (Say), and therefore identical with the Alder 

 insect, to the history of which reference is above 

 made. Its development was unexpectedly rapid, 

 for when received on the 23d, no pupoe were observed, [ 

 and only four days thereafter the perfect insect was 

 found in the box, so fully colored that it must have 

 emerged from the pupal case the previous day. The -pia. ii— The obtuse 



. • 1 • xp* 11 Clastoptera, C. obtusa. 



msect IS shown m l^lgUl-e 11. (Original.) 



Food-plants. 



Those that were observed in 1889 (see loc. cit.) occurred on the 

 alder, Alnus serrulata, upon which it had been reported as common by 

 Mr, Uhler. 



Dr. Fitch includes it, in his 3d Report, among the Insects of the 

 Butternut, adding, that it may frequently be met with on quite a 

 number of different trees and shrubs, from the middle of July till the 

 end of the season. 



Dr. Packard, in his Insects Injurious to Forest and Shade Trees, 

 names it, on the authority of Dr. Fitch, among the Insects of the 

 Butternut, but without mentioning its occurrence on any other tree. 



Mr. E. P. Van Duzee, in his Hemiptera from, Mushoka Lake 

 District, Canada, gives it as very common on the blueberry, in com- 

 pany' with Clastoptera Proteus, during the latter part of July, 1888, 



There seems to be no previous record of its observation on the 



linden. 



Distribution. 



It apparently extends over a large portion of the United States and 

 Canada. Say, in his original description, gives it as inhabiting " the 

 United States." It was found by him in the Northwest near Council 

 Bluffs. Provancher gives it as very common in Canada. Uhler states 

 that it is found in many parts of the Eastern United States and in 

 Texas, and extends also to Tamaulipas, Mexico. 



Clastoptera pini Fitch. 



The Pine Clastoptera. 



(Ord. Hemiptera: Subord, Homoptera: Fam. Cercopid^.) 



Fitch: in 4th Ann. Rept. [N. Y.] St. Cab. N. H., 1851, p. 58; in Trans. N. Y. 

 St. Agricul. Soc. for 1857, xvii, p. 738; 4th Rept. Ins. N. Y. (in 3d-5th 

 Repts,), 1859, p, 52, No. 259. 

 20 



