NATURAL HISTORY, TORONTO REGION 
the list of Hymenoptera, and by Mr. E. P. Van 
Duzee, who arranged the list of Hemiptera, exclusive 
of the Aphididae and Coccidae. To all of these gen- 
tlemen I desire to express my sincere thanks. 
Class ARACHNIDA. 
The Arachnids of the Toronto district have been 
almost entirely neglected, and are practically un- 
known. The only records I have found are those 
of a few mites taken by Mr. J. B. Tyrrell from birds 
in 1878-1880 and described by Dr. C. Haller in the 
“ Archiv fiir Naturgeschichte ” for 1882. The fol- 
lowing is a list of these species, revised by Mr. Nathan 
Banks: 
Pteronyssus simplex, Haller. 
Analges digitatus, Haller. 
““  passerinus, Linn. 
“  tridentulatus, Haller. 
Megninia aculeatus, Haller. 
“ forcipatus, Haller. 
gladiator, Haller. 
pici-majoris, Buchholz. 
Allanalges gracilepinneata, Haller. 
(<9 
ce 
Class DIPLOPODA and Class CHILOPODA. 
Neither the Millipedes nor the Centipedes of the 
Toronto district have received any attention from 
zoologists. 
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