STATE HORTICULTURAL SOCIETY. 185 



If it was imported from England to America in 1787, it did not pass 

 into France until 1812, and did not reach Belgium until 1829, although 

 possible, yet it is somewhat strange that Hausmann should describe it as 

 infesting apple trees in Germany in 1801, and that without any hint of 

 its recent importation. A careful examination of what is said by Serville 

 and Amyot in reference to this point indicates that they overlooked 

 Hausmann 's statement, yet they used his specific name and had before 

 them volume I. q{ Illiger s Magazine, in which the description is found 

 and statement made. These facts', when connected with Salisbury's state- 

 ment, give us reason to doubt the correctness of the assertion that it was 

 imported into England from America. I may also further add, that M. 

 Eudes Deslongchamps, in a prize essay to the Royal Agl. Soc. of Caen, in 

 1830, and M. Blot, in a work of the same date, maintained that it was 

 not introduced from North America, but that it was indigenous to Europe, 

 that occasionally, under favorable circumstances, it was greatly multi- 

 plied in certain localities, and then for a time would disappear, and hence 

 the idea of its importation. The name, " American Blight," given to it 

 in England, indicates, on the other hand, the popular belief in that country 

 of its American origin. 



Prof. Riley, in his third report (1871), asserts, upon what authority I 

 am unable to say, that it is conceded on almost all sides that it was im- 

 ported into Europe from America, and that there is every reason now to 

 believe the two species here mentioned are identical, or at least but varie- 

 ties of one species. Without attempting now to decide this point, as I 

 have no European specimens, and am without copies of some of the latest 

 works on the subject, I will give brief descriptions of the former species — 

 the Woolly Aphis (^E. latiigera) — as found in Europe, and what is supposed 

 to be the same species as found in this country. 



The most recent description I have at hand at this moment is by 

 Goureau (1862), who gives the characters briefly as follows : 



Apterous individuals. — About one-tenth of an inch long ; reddish- 

 brown and covered above with a white, cottony secretion ; antennae, 

 short and pale yellow; legs, yellowish ; knees, brown; without honey 

 tubes, but with a circular cicatrix in place of each. Winged indiindua/s — 

 Antennae shorter than the head and thorax, and varying in color from 

 brown to black; head and thorax black, a brownish ring at the collar; 

 •the abdomen, chocolate-brown; legs, brownish; wings, hyaline, with 

 the veins and stigma deep brown ; body enveloped in a white, cottony 

 secretion. Serville and Amyot give the length of the apterous individu- 

 als as only eight-hundredths of an inch ; they describe the winged indi- 

 viduals as less, and with the body almost naked. 



Hausmann and Knapp and Harris, following them, were of the 

 opinion the species never acquired wings; but so far as the European type 

 is concerned; this is evidently a mistake; and Mr. Verrill, in an article 

 in The Practical Entomologist, informs us that he has observed quite a 

 number of winged individuals of this species — both males and females — 

 upon apple trees in New England. These he describes as having well- 

 formed and rather large wings, but in other respects closely resembling 



