282 THE ORCHID REVIEW. [SePTEMBER, 1900. 
Botanical Gardens, Brussels, and from greenhouses in the North of England, 
and this year described Euthrips longipennis and Cephalothrips spinosus 
from Brussels, and Anaphoth ~ orchidaceus from England, Ireland» 
Scotland, and Belgium. 
‘* We are only able to Sa on record five species of Thysanoptera 
from the conservatories and propagating pits of the Royal Botanic Gardens, 
Kew, four of which have been collected by the late Mr. George Nicholson. 
It should be said that the houses are peculiarly free from these 
little pests. The writer on two occasions spent the whole day collecting in 
the propagating pits as well as the larger houses; on the first occasion a 
single specimen of Heliothrips hzmorrhoidalis, Bouché, was seen, and on 
the second, when special search was made for the species heretofore 
mentioned, only a few specimens of Anaphothrips orchidaceus, Bagnall, and 
Thrips tabaci, Lindeman, were captured. It is probable that the various 
ants which swarm in most of the houses help to keep down the thrips; the 
writer has found many species of hothouse thrips freely in several well- 
regulated and attended houses where ants are absent or scarce, but has 
always found thrips to be very scarce in houses infested.by ants.” 
The two species recorded as occurring on Orchids at Kew are 
Anaphothrips orchidaceus, collected on Zygopetalum, Epidendrum, and 
Cymbidium, and Heliothrips femoralis on Lissochilus spp. The former is 
said to occur also on Cypripedium and Odontoglossum, and we suppose is the 
‘* yellow thrip”’ too familiar to Orchid growers. 
The note places the maligned ant in a rather new light, for this insect 
has the reputation of carrying scale from plant to plant, and suffers much 
persecution in consequence. But perhaps Orchid growers prefer to keep 
thrips down by fumigation or spraying with some nicotine solution. The 
solution used at Kew is, we believe, the XL All liquid sold for the purpose, 
diluted to the strength recommended, but fumigation is also resorted to 
when necessary. 
ORCHID COLLECTIONS ROUND MANCHESTER. 
(Concluded from page 249.) 
THe HaAREFIELD HaLt CoLvLection.—The collection of E. Ashworth, 
Esq., Harefield Hall, Wilmslow, is a large and representative one, which 
has occupied a prominent position in the Manchester district for many years, 
and contains many features of interest. We were particularly pleased to see 
several healthy plants of the rare Trevoria Chloris, with flowering examples 
of Dendrobium Victoria-Regina, and the charming little Epidendrum 
Endresii—but we will not anticipate the order of our notes. 
On our way to the Orchid houses we passed through a corridor, where 
in a light and airy corner was a good plant of Cymbidium Lowianum 
