[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)]

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

----- Original Message -----

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