. 1927 ] 
Observations on Wood-boring Insects 
79 
Family Aulacidce 
Pammegischia pallipes Cresson. Four females and a male, 
July 13 and 17. The abdomen of two females is black, except 
the first and second segments; and the others agree with the 
description given by Bradley (’08) of P. xiphydrice Ashm. The 
male taken with them is typical of P. pallipes and Bradley is un- 
doubtedly right in regarding these two as sexes of the same 
species. P. xiphydrice has been bred from Xiphydria provancheri 
living in birch twigs according to Yiereck and Champlain reared 
P. burquei Prov. from another species of Xiphydria. 
Pristaulacus stigmaterus Say. Two females and one male, 
July 13 and 16. 
Gasteruption tarsatorium Say. Two females, July 13 and 17. 
Gasteruption incertum Cresson. Two females and two males, 
July 13 and 17. 
Family Braconidce 
Spathius simillimus Ashmead. One female, July 17. This 
species has been bred from the small Buprestid beetle, Agrilus 
bilineatus, a well known enemy of chestnut and oak. The mem- 
bers of the genus are parasites of small wood-boring beetles, 
principally bark-beetles of the family Ipidae. 
Helcon ligator Say. Three females and one male, July 13 
and 19. This has been bred from several Cerambycidae, in- 
cluding Neoclytus acuminatus Fabr. which is abundant in the 
present collection. 
Blacus longicaudis Prov. Five specimens of both sexes, 
July 18 — September 5. 
Ascogaster carpocapsce Viereck. One male, July 13. 
This species, described by Viereck as a Chelonus was bred 
from the codling moth Cydia ( Carpocapsa ) pomonella and has 
since been reared by Wilcox (Psyche, vol. 25, p. 17, 1918) from 
the Oriental moth {Cnidocampa flavescens ) . 
Apanteles consimilis Viereck. Seventeen females and two 
males, July 14- Aug. 23. According to Muesebeck this is not a 
common species, or at least has been only rarely taken. 
