78 THE CANADIAN ENTOMOLOGIST. 
SIREXx.—This genus is well known by the large size of the few species 
that have been discovered and by its especial habitation in the North. 
I have mentioned elsewhere its occurrence in Eastern Siberia, which may 
have been the earlier habitation of the European species, and wherein 
some of the North American species also dwell, such as S. gigas, S. 
albicornis, S. juveneus, S. spectrum and S. flavicornis. JS. juveneus has 
appeared as far south as Algeria, and S. cedrorum is contemporaneous 
with the cedars on Mt. Lebanon. 5S. varipes and S. dimidiatus inhabit 
North America, and there are three apparently undescribed species from 
that region and one of small size from Mexico. There are two in North 
Hindostan and one in Australia, and three or four whose native country 
is unknown to me. It does not appear that distance in space between 
two species is accompanied by corresponding difference in character, for 
the Australian species is very nearly allied to S. juveneus. In the neigh- 
bouring genus, Zremex, the European 7! juxicernis is represented in North 
America by Z: columba, and there are three undescribed species, one of 
North America, one of Hindostan, and one of China. 
NOTES ON COLLECTING. 
BY THEODORE L. MEAD, NEW YORK. 
Last season, while in the Catskill Mountains, I made some experiments 
in sugaring for moths, which may be interesting to collectors. 
The sugaring mixture employed was “ molasses sugar” and water, in 
the proportion of three or four pounds to the gallon; I could not per- 
ceive that other additions, such as alcohol or preserved fruit, &c., were of 
any advantage. 
About twenty trees in an orchard were sugared, but very few moths 
were seen for the first night or two, though as afterwards they came in 
immense numbers, it would seem that a little time is required for the news 
to spread. 
Having found a cyanide poison-bottle to be very useful in killing small 
Diurnals, and noticing the almost universal habit of these moths, when 
disturbed, of darting downward before flying away, it occurred to me to 
make a poison-bottle on a large scale and to dispense with a net, always 
50 inconvenient to use at night. 
