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to the surface of the leaf. Other species have the instrument much 
stronger and are able to cut a groove even in the harder tissues, sufficient 
to entirely hide and protect the egg. The larvae have a general resem- 
blance to those of many Lepidoptera, and are often known as false- 
caterpillars. The greater number feed openly upon the leaves, but 
some produce galls, or are inquilinous in the galls of other insects, and 
others are leaf-miners, or infest buds, etc. The species feeding openly 
are protected from their enemies in many different ways : as by 
assimilating to the colour of the foliage, emitting disagreeable odours or 
secretions, raising and lashing the abdomen about, feeding at night or 
on the under surface of the leaves, constructing shelters, etc. The im- 
mediate neighborhood has already yielded about one hundred and fifty 
species of Sawfiies, but the true value and affinities of many forms can- 
not be known until they have been determined by breeding, for the 
larvae and food-plants of comparatively few species are yet known to us. 
A list of the species collected in 1889 is given in Canadian Entomolo- 
gist Vol. xvii, p. 23. 
TENTHREDINID.-E. 
ClMBEX. 
C. atnericana, Eeach. 1 male, 1 female. 
Var. decemmaculata, Leach. 2 males. May nth. 
Var. alba, Norton. 1 female. 
Var. LaPortei, St. Farg. 3 males. June 16th. 
This handsome and very variable insect is not common, but its 
larvae are occasionally found on willow and elm. They are yellow, with 
a black dorsal line, and a finely granulose apparence ; when at rest they 
are coiled spirally on the leaf. 
Trichiosoma. 
T. trianguliiw, Kirby. 2 males and female. May 12th, July 28th. 
Not a common insect, although the larvae are not infrequent on 
willows. Seems to be more abundant farther north, as for instance at 
Sudbury. Larvae resemble those of Cimbex, but are green and without 
dorsal line. 
