393 
Ann. Rept. Insects Mass., pp. 5-8), under the name of Limotltrips frit id. 
which, however, is neither a Limothrips nor Thrips tritici Fitch. Dr. 
Packard states that Mr. B. P. Ware, of Swampscott, Mass., had suf- 
fered a serious loss from the attacks of this insect; that he had noticed 
it on his onions for the last fifteen years, but that the damage in 1872 
was greater than ever before, and that the evil appeared to be equally 
serious in other parts of Essex County, especially in Lynn, Salem, and 
parts of Danvers. He estimated that at least one-tenth of the crop of 
one season, amounting to 810,000, was destroyed by this new pest, in 
Essex County alone. 
The next authentic record of a Thrips upon onion plants was on the 
island of Bermuda, and was published by Prof. A. E. Shipley, of Cam- 
bridge, England, in Bulletin 10 of Miscellaneous Information, Royal 
Gardens, 1887 (p. 18), with the remark, however, that it appeared to 
cause but little injury. 
Two years later another account of the injurious work of the onion 
Thrips was published by Dr. Roland Thaxter (Ann. Rept. Conn. Agr. 
Exp. St. for 1889, p. 180) in the following words : 
The white "blast of market onions is the most serious disease to which onions in the 
field have been subjected this year, and has heen reported from numerous localities 
and observed in all the onion districts which have heen visited. The injury j^ives 
the held a whitish appearance, which starts in one or more spots and spreads in all 
directions. The onions themselves "become stunted in their growth, while the leaves 
are more or less completely dying, according to the severity of the attack; hecoming 
water-soaked at the hase if the weather he at all wet, inducing decay, and generally 
injuring the keeping quality of the bulbs. 
In addition to the above I have seen several other references to what 
is without doubt this same species. 
In the Annual Report of the Colorado Experiment Station for 1892 
(p. 36) the following note from the pen of Mr. C. P. Gillette, station en- 
tomologist, appears: " The onion Thrips (Thrips striata Osb. ?) was 
extremely abundant on the,, college grounds [Fort Collins] the past 
summer and fall, and has been reported as a pest at Greeley, Colo. 
Thousands of these Thrips were present on single onion tops in the 
college garden." In the report for 1893 (p. 55) this insect is again 
reported as exceedingly abundant at Fort Collius and Denver. In 
Bulletin 21 of the Colorado station, published the same year, a three- 
page account of this insect is given, including a description of the 
species, with illustrations. Mr. Gillette adds that should the species 
prove to be new, the name Limothrips allii be applied to it. Mention 
is here made also of an article on this subject by Mr. C. F. Baker, 
published in volume VII of the American Florist (p. 188); 
Dr. J. A. Lintuer, in his ninth Xew York Report, for 1892, (p. I r» . 
mentions a Thrips from Kingston, Pa., attacking the leaves of cabbage 
and cauliflower in large numbers, which evidently also belongs to this 
species. 
In the Annual Report of the New Jersey Agricultural College Experi- 
ment Station for 1893 (p. 411), Dr. J. B. Smith states that the onion 
