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Subfamily Doryctine. 
Parasites. Host. 
Doryctes erythromelas Brullé........-.-- . Longicorn (?). Bred from cocoon found in 
mine of host, Apr. 3. 
Subfamily Rhogadine.. 
Rhogas inte?medius Cress...........----.dAeronycta americana larva. 76 imagos 
Fens) « ‘ oO 
emerged from host Oct. 5. Flying Sept. 
15. 
Subfamily Microgasterine. 
Apanteles congregatus Say...-.----.--.--- Cocoon found under bark of dead Norway 
Spruce. Imago emerged Feb. 27. 
Mpambeles xylina Say coc -s. fee Se Pionea rimosalis. Bred from cocoons on 
and with host on Cabbage, July 26.7 
Apanteles sp. -..-...-.----.-.-......-..--Orgyia leucostigma. Bred from host, Oct. 
Apanteles flaviconche Riley. ..........--Bred from cocoons found on weed stubble, 
Apr. 23. Imago emerged Apr. 30. 
Subfamily Agathidine. 
Microdus simillimus Cress ............... Lixus scrobicollis and Lepidopterous larvee. 
‘Bred from cocoons found in Ragweed 
pith infested by host, Apr. 27. Imagos 
emerged May 1. Plenty on Gooseberry 
bushes in bloom and infested by Nema- 
‘ tus ventricosus, May 2. 
Subfamily Calyptinee. _ 
Calyptus tibiator Cress.-..-..-.---i.-.---. Lepidopterous larva. Cocoons taken from 
pith of Ambrosia artemisiefolia in mines 
of host, Apr.27. Emerged May 8. Fly- 
ing, May 8. 
Subfamily Helconine. 
fclconmllmatONOAay soos Sosa ese se Scolytus muticus and Agrilus egenus. Bred 
from branches of Celtis occidentalis in- 
fested by host. 
Helcon tetrapodii Ashm. MS...--..---.... Tetropium cinnamopterum. Cocoon found 
in pupal chamber of host in sapwood of 
Spruce log (Abies nigra) July 8. Imago 
emerged July 14. 
Subfamily Aphidiine. 
Aphidius avenaphis Fiteh.-.....--..----..2 Aphis mali. Bred from Aphids on nursery 
, stock, July 20. 
The Braconidz mentioned above were determined by Dr. Riley and 
Mr. Ashmead; the Buprestidae and Cerambycide imagos by Dr. Horn, 
and the Scolytide by Mr. W. Hichhoff, Germany. Mr. Ashmead has 
prepared descriptions of the new Braconide. 
* This species was found plentifully wherever the host was observed. Gardeners 
generally were destroying the cocoons, supposing they were the eggs of the caterpil- 
lars, 
