196 THE ORCHID REVIEW. 
siderable time. The complete cycle of development from egg to perfect 
insect can take place in rather under four months, but may take longer, and 
it seems probable that there are at least two broods in the year. The 
author concludes that the conditions of an Orchid house suit it perfectly, 
and that it is the very worst of Orchid pests, and yet with reasonable care 
successful war can be waged against it. Imported plants should be gone 
over, and any brown, discoloured parts should be removed. If the leaves 
are eaten, thus revealing the presence of the perfect insect in the house, 
they should be searched for after night-fall with a lantern, and destroyed. 
If the larve are at work in the pseudobulbs, a gradual discoloration will 
appear, and the grub must be cut out, or, if too far gone, the whole bulb 
should be removed. With a little perseverance in this treatment the pest — 
should soon be eradicated. 
Dr. Macdougal deserves the thanks-of all Orchidists for the pains he has 
taken in working out the life-history of the insect, and it would be interest- 
ing to have the history of another Dendrobium beetle, Xyleborus perforans, 
traced in a similar way. 
ODONTOGLOSSUM x WENDLANDIANUM. 
Mr, J. O’BrIEN has made another suggestion as to the parentage of this 
puzzling plant. Writing on the question, he remarks :—‘‘ There seems to 
be little doubt that O. crispum Lehmanni is one of the parents, and on 
perusing a letter received from Consul F. C. Lehmann, in which he briefly 
describes a new Odontoglossum which he had found, which tallies closely 
with the characters of the plant illustrated in a recent issue of the 
Gardeners’ Chronicle, I think it most probable that the O. X Wendlandianum 
would be derived from the O. crispum Lehmanni and the O. aspidorhinum, 
Lehm., which was sent to this country, together with other Odonto- 
glossums, about the time he wrote. O. aspidorhinum has the spiny crest 
which formed the puzzling feature in O. X Wendlandianum, and is | 
otherwise when crossed with O. C. Lehmanni a more likely combination 
than any other suggested. A strengthening circumstance in the argument 
is that Mr. McBean, of Cooksbridge, who flowered the variety illustrated, 
acquired many of the O. crispum Lehmanni, and other Odontoglossums 
sent over by Consul F. C. Lehmann, though, as is too often the case, 
he failed to label the plants, or keep them separate from others,”— 
Gard. Chron., 1900, xxvii., p. 290. I wish this presented us with a solution 
of the difficulty, but we have Consul Lehmann’s own testimony that the 
two supposed parents grow in quite different localities. O. c. Lehmanni 
grows in dense woods near Santiago and Putamayo, on the Eastern Andes, 
in the Pasta district, at 5,800 to 7,400 feet altitude (Engl. Jahrb. xxvi. 
