Parasites. Host. 
Spathius canadensis Ashm ..-....-----.--- Phleosinus graniger. Bred from cocoons 
found plentiful under bark of Juniperus 
virginiana (Red Cedar) in mines of host 
Apr. 14, 18, 23. Tmago emerged May 10. 
Tomicus sp. Bred from cocoons in mines 
of host in White Pine bark, Mar. 31. 
Dryocetes autographus. Cocoons found 
under bark of dead Abies excelsa in mines 
of host, Mar. 15. Imago emerged Apr. 6. 
Cureulionid. Bred from cocoons and larva 
found under bark of dead Pinus inops in 
cocoons of host, Sept. 23. 
Magdalis olyra (2). Bred from branches of 
Carya alba infested by larva, pupa, and 
beetles, Apr. 29. 
Spathius brevicaudus Ashm. MS.-.-...---- Dryocetes autographus. Bred from cocoons 
. in mine of host under bark of dead Abies 
excelsa, Nov. 10, 1890, and Mar. 15, 1891. 
Spathius simillimus Ashm. MS.---....---- Bred from unknown cocoon found in sap- 
wood of decaying Abies nigra, host un- 
known, Mar. 29. 
Buprestid larva. Cocoons taken in mines 
of host, Mar.31. Imagoemerged May 1. 
Agrilus bilineatus. Cocoons found in green 
bark on White Oak stump in mines of 
host Apr. 25, May 2, and May 4. Imagos 
emerged May 18 and 25. eos 
Spathius unifasciatus Ashm. MS...-- =e PD Scolytus 4-spinosus. Bred from cocoons 
found under bark of Carya alba in larval 
mines of host, Apr. 29. 
Subtamily Hecaboline. 
Lysitermus scolyticida Ashm. MS ........Scolytus 4-spinosus. Bred from cocoons 
found under Hickory bark in mines of 
host, Apr. 30. 
Cenophanes langurie Ashm. MS ..-.-.---- Languria (?) larva. Cocoons taken in pith 
of Ambrosia trifida containing larve of 
host, Dec. 24. Imago found emerged 
Feb. 24. Samein Ambrosia artemisiefolia 
Novy. 13. Imago found emerged Feb. 24. 
Cenophanes pityophthori Ashm. MS..---.- Pityophthorus sp. Bred from cocoon found 
in mine of host under bark of small 
dying Spruce (Abies nigra), Feb. 24. 
Cenophanes anthaxize Ashm. MS......---. dnthaxia viridicornis. Bred from section 
of Willow infested by host, and from co- 
coons found in mines of same host, May 
4, June 24. 
Agrilus larva. Cocoon taken from mines 
of host under bark and in sapwood of 
Dogwood (Cornus jfiorida), Apr. 14. Im- 
ago emerged May 26. 
Cenophanes hylotrupidis Ashm. MS ...-. Longicorn larve. Bred from cocoons 
; found in mines of host in Juniperus vir- 
giniana, Apr. 4. 
