SCALY WINGED COPEOGNATHA. 123 
SUPPLEMENTARY NOTE ON THE SCALY WINGED 
COPEOGNATHA. 
By E. ERNEST GREEN. 

is the foregoing paper Dr. Enderlein has given us very careful 
and elaborate descriptions of the remarkable little scaly-winged 
insects allied to the Psocide or “booklice.” A few notes on the habits 
and appearance of these insects in life may be of interest to the 
general reader and of use to those who may wish to collect and 
study them. In this connection it may be mentioned that of the 
twenty-five species collected by me in Ceylon, all but three or four 
were taken in the Peradeniya Gardens. It is probable therefore 
that a careful search in other parts of the Island—to say nothing 
of the Oriental region in general—will bring to light numerous other 
species, and perhaps still more extraordinary and beautiful forms. 
In general appearance they may be likened to minute moths, 
their wings and bodies being usually clothed with scales greatly 
resembling those of the Lepidoptera. Some species have a more 
hairy appearance, though most of these hairs are really elongated 
scales. Such species might perhaps be mistaken for the hairy- 
winged flies—Psychodide. 
Several species are to be found frequenting buildings. They 
seem to prefer damp situations, such as outside walls, especially 
where minute algz have obtained a footing. But there are others 
that I have taken only inside houses—either on the walls and 
ceilings or amongst books and old papers. The greater number of 
(and more interesting) species are to be found upon the trunks of 
trees and under loose bark. 
They may be recognized by their movements. When disturbed, 
they run rapidly for a short distance and then come to a halt. The 
species that frequent the trunks of trees are practically invisible so 
long as they remain still, their colour harmonizing with the varied 
tints of the lichens and alg on the bark. They appear to prefer 
such trees as have a comparatively smooth bark. I have seldom 
found them upon gnarled or corky stemmed trees. I do not think 
that the species of tree per se has anything to do with this 
preference. It is more a question of the vegetable growths on the 
