5 
HISTORY IN THE UNITED STATES AT LARGE.* 
This insect seems to have been first observed in the United 
tates about the year 1877, and was first reported from Elmira, 
lew York, where it had done noticeable injury to peach-trees, 
n 1880 Dr. Riley mentioned its occurrence at Fairhaven, New 
ersey; in Coopersburg, Pennsylvania; Hillsborough, Missouri; 
Williamsport, Maryland; and the District of Columbia. At Fair- 
aven it had destroyed all the cherry-, peach-, and plum-trees 
3t out on a particular lot; in Pennsylvania it had injured the 
herry; and in Missouri and Maryland it had attacked also the 
each. In 1884 Dr. Hagen, of the Harvard University Museum, 
iscovered it in the larger branches of young pear-trees at Cam- 
ridge; and the same year it was reported from Georgia—the 
pecimens being determined by Dr. Riley—as occurring in pear, 
,pple, peach, and plum. In 1885 Dr. John Hamilton, of Alle- 
heny, Pennsylvania, made the surprising and important state- 
lent that he had obtained this insect twice by breeding from 
ickory-twigs; but Mr. E. A. Schwarz, of the U. S. National 
luseum, to whom the specimens were referred, reported later 
hat they were not S. rugulosus , but a species apparently 
ndescribed. (Proc. Ent. Soc. Wash.^I., 1886, p. 30.) In North 
larolina it infested peach, plum, and cherry in 1885 and 1886, 
,nd did considerable damage in that State. One, and possibly 
wo, hymenopterous parasites of the larvae were there bred from 
b by Prof. Atkinson. These parasites were found quite common 
a larvae infestingthe peach, and are of especial interest as the first 
adication, of any natural check upon the multiplication of this 
pecies. The fact that it is not commonly considered very seri- 
usly injurious in Europe, where it has long been known, makes it 
ery likely that it is kept in check there by parasites, and gives 
•round for the hope that parasitism here may presently put a 
top to its increase. It is said, indeed, by Goureau,t to be 
estroyed there in great numbers by two species of parasites, 
•oth small Hymenoptera, which attack it in its galleries, the 
arva of the parasite devouring that of the Scolytus and usurp- 
ag its place. Neither of these occurs in America, and it is quite 
•ossible that the time may come in the history of this insect 
/hen it will be worth while to especially import its European 
nemies The species referred to are Blacus fuscipes , G., and 
3 teroinalus bimaculatus , N. de E. 
* A recent letter from Dr. Riley gives me the following additional dates and localities 
iken from his correspondence and collections: 
Ammendale, Md.. Oct.. 1881, from plum; Marlboro, N. Y., Nov. lf>, 1881: Macon, Ga.. Oct. 5, 
183, on pear; Glendale, Md., April 9, 1884, on plum: Wading River. N. Y„ Mar. 18, 1884, on 
herry; Junction P. O., 'Va., Oct. 2,1885; Mt. Vernon, Ind., June 24,1890,on peach; New Lex- 
lgton. Pa., July 7,1890, on pear; LaFayette, Ind., Aug, 15,1890, on peach. 
+ “Les Insectes Nuisibles aux Arbres Fruitiers aux Plantes Potageres aux Cereales et 
ux Plantes Fourrageres,” pp. 23, 24. 
