An Overwintering Site of the Gypsy Moth Parasite, Brachymeria intermedia 12

1978 ◽  
Vol 7 (5) ◽  
pp. 782-782 ◽  
Author(s):  
Michael G. Waldvogel ◽  
Mark W. Brown
Keyword(s):  
Gypsy Moth ◽  
Brachymeria Intermedia ◽  
Overwintering Site

BRACHYMERIA INTERMEDIA (HYMENOPTERA: CHALCIDIDAE) PARASITIZING GYPSY MOTH IN MAINE

1971 ◽  
Vol 103 (5) ◽  
pp. 654-656 ◽  
Author(s):  
David E. Leonard
Keyword(s):  
New England ◽  
Gypsy Moth ◽  
Pest Species ◽  
Natural Spread ◽  
Wide Range ◽  
Northern New England ◽  
Brachymeria Intermedia ◽  
Artificial Introduction

AbstractBrachymeria intermedia (Nees), an introduced parasite of the gypsy moth, was recovered from gypsy moth pupae collected in Fryeburg, Maine (latitude 44°). The recovery of this parasite in Maine shortly after it was reported established on gypsy moth in Connecticut suggests that B. intermedia is rapidly expanding its range. The wide range of hosts attacked by the parasite, and its occurrence in northern New England, make it a promising potential biotic agent on a variety of northern pest species of lepidopterans, either through natural spread or by artificial introduction.

Sex ratio regulation in Brachymeria intermedia, a pupal gypsy moth parasitoid

1986 ◽  
Vol 64 (7) ◽  
pp. 1412-1415 ◽  
Author(s):  
M. A. Mohamed ◽  
H. C. Coppel
Keyword(s):  
Sex Ratio ◽  
Gypsy Moth ◽  
Intraspecific Competition ◽  
Host Density ◽  
Host Size ◽  
Male Density ◽  
Brachymeria Intermedia ◽  
Ratio Variables

The solitary pupal gypsy moth endoparasitoid, Brachymeria intermedia (Nees) (Hymenoptera: Chalcididae), regulates the sex ratio of its progeny such that the ratio is generally female skewed. Parents with a male-skewed sex ratio produce progeny that are female biased more than parents with a female-skewed sex ratio. Variables such as host size, host density, and intraspecific competition played no role in determining the sex ratio of the progeny. We conclude that sex ratio regulation of the progeny in this species is a function of male density.

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