[Syrphidae] Specialist aphidophagous syrphids
Santos Rojo
rojo@carn.ua.es
Thu, 9 Nov 2000 18:53:46 -0800
Dear Christopher,
Yes, there is a classic paper of Elizabeth M. Heiss (1930) "A
Classification of the Larvae and Puparia of the Syrphidae of Illinois
Exclusive of Aquatic Forms", University of Illinois Bulletin, Vol
XXXVI, No1, where you can found some data about pipizine and Woolly
Apple Aphid: Eriosoma lanigerum.
In this paper appear two species related with WAA in both above and
bellow the ground... [Pipiza pisticoides and Pipiza radicum now
Heringia(Heringia) salax (Loew, 1866) and Heringia(Neocnemodon)
pisticoides (Williston, 1887) respectively, according to
BioSystematic Database of World Diptera (Systematic Entomology
Laboratory, USDA) http://198.77.169.80:591/diptera/names/search.htm]
On the other hand, we had working with some species of Pipizini
relatively abundant in Mediterranean areas of Southeastern Spain:
Pipiza festiva Meigen, 1822 and Heringia heringii (Zetterstedt,
1843). If you want I could sent to you a copy of our paper:
"Rojo & Marcos-Garc=EDa (1997). Syrphid predators (Dipt.: Syrphidae) of
gall forming aphids (Hom.: Aphididae) in Mediterranean areas:
Implications for biological control of fruit trees pests.
Entomophaga, 42(1/2): 269-276."
In this paper we study the relationship of both species of syrphids
with the gall-forming aphids (that produce also waxy secretions)
associated with trees of the genus Pistacia (Anacardiaceae) and
several fruit trees and their role in biological control of some
fruit tree aphid pests.
I hope success for your research,
Santos Rojo
********************************************
*Dpto. Ciencias Ambientales y Recursos Naturales
*Unidad de Entomologia. Universidad de Alicante
*Apdo. 99. E-03080 Alicante, Spain
*
*Tlf.: (int + 34) 96 590 34 00 ext. 3281
*FAX: (int + 34) 96 590 38 15
*e-mail: rojo@carn.ua.es
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Hello. We are working with Chris Thompson on identifying a Pipizine fly
that seems to be a specialist predator of the Woolly apple aphid. Larvae
collected from arboreal WAA colonies last summer were reared them to
maturity on WAA, but we don't know yet whether they feed on the edaphic WAA
colonies. That, and other questions, will form the basis for work next
year. Is anyone doing anything similar with syrphids that specialize on
hosts that produce waxy secretions? Are there recent or classic papers on
this topic out there that I might not be aware of? Thanks for the feedback.
J. Christopher Bergh
Virginia Tech
Alson H. Smith, Jr.
Agricultural Research and Extension Center
595 Laurel Grove Road
Winchester, VA 22602
Tel: (540) 869-2560
=46ax: (540) 869-0862
cbergh@vt.edu