100 THE REPORT OF THE No. 1» 



NOTES ON INJURIOUS INSECTS OF THE ABITIBI REGION. 

 By Tennyson D. Jarvis, B. S. A.,Dbmonstratohin Biology, Ontario Agricultural College. 



Larch Satv-Fly (Nematus Erichsoiiii): — Nearly all of the trees in this northern country 

 have been destroyed by the larvte of this Saw-Fly. During the early part of July the adult 

 flies were seen floating down the Porcupine Rivt^r, and a few days later the shore of Night- 

 hawk Lake was covered with them. Pupa-cises were found in masses beneath the surface of 

 vegetation of all the trees examined in the district. The flies deposited their eggs about the 

 firs'-, week in July and the eggs hatched about the 12th of July. 



Sprn.ce Gall Louse (Chermes abietis): — The Gall Louse was very common on the Black and 

 White Spruces. The Spruces along the water seemed to suff"er more than the inland trees, and 

 the White Spruce more than the Black. 



Birch Case-Beare7 (Coleophora sp.): — This insect was found feeding on the Paper Birch 

 and Alder. In some districts it was very common and destructive to the Birch. 



American Tent Caterpillar (Clisiocampa americana) : — This pest was found about one 

 huadred miles north of Metagama feeding on the leaves of the Pin Cherry. 



Pale Brown Byturns (Byturus unicolor) : — This pest was found throughout the district 

 feeding on the leaves and buds of the Wild Raspberry. 



Pine Borer (Monohammus confiisor) • — A few specimens of this Borer were found, and 

 the work of the insect was noticed in a few places. 



American Saw-Fly (Cimbex Americana) : — The larvte of this insect were found in'consider- 

 able numbers on the W^illow trees around Nighthawk Lake. 



Lace Bugs (Corythuca arcuata) : — Common on the Birch and Alder through the region. 



Spittle Bugs (Aphrophora sp) : — Common on the Red Osier, Dog Wood, Spruces, and many 

 herbs. 



Cabbage Butterjly (Pieris rapae) :— The larvte of this insect were found in the Indian 

 gardens around Nighthawk Lake feeding on turnips and cabbage. The adults were found 

 throughout the Region. 



Clouded Stdphur (Eurymus philodice) : —Adults were quite common around*Nighthawk 

 Lake. 



Cut Worms (Hadena sp.) ; — Very injurious in gardens at Fort Mettagami, and common 

 in the Abitibi region, 



Alder Blight (Schizoneura tessellata) : — Alders were covered with this insect. 

 ■ Scthrfy Bark LoH.se (Chionaspis sp ) ; — Found on the Alder at Fort Frederick Ho'ise Lake. 



Ash Colored Blister Beetle (Epicauta cinerea) : — Were found feoding^'oki the Wild Vetch 

 near Porcupine Lake. 



Black Blister Beetle (Epicauta Pennsylvanica) ; — Found feeding on Golden Rod. 



Butter-cup Oil-Beetle (Meloe angusticollis) : — Were found in gmss. 



Maple Borer (Dicerca divaricata) : — The adult of this Borer was'found in the middle of 

 July around Nighthawk Lake. 



The Handed Purple (Basilarchia arthemis) : — This butterfly was found in open places along 

 river banks. 



Yelloio Sa-aMow Tail (Papilio turnus) : — These butterflies were found in the same'places as 

 the Banded Purple, and usually accompanied them. 



Fall Canker Worm (Alsophila pometaria) :— Were found on the Birch. Aspen, and many 

 »ther shrubs throughout the district. 



Pulyphem'iis Moth (Telea polyphemus) :— These were observed floating on the water, and 

 riyuig around the river banks. 



