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Diagnosis |
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Diagnosis
Postmarginal vein (PMV) absent or rudimentary, at most half the length
of the stigmal vein (STV).
Scutellum with two pairs of setae,
and usually with two pairs of longitudinal
lines (submedian and sublateral).
Female
antenna with three funicular segments; male
antenna with four.
Submarginal vein (SMV) with 1,
2,
3
or more setae on dorsal surface.
Notauli
always straight and complete to hind margin of mesoscutum.
Axilla
usually strongly advanced, defining a linear or almost linear scapula.
Male antennal scape with small
to large
sensory plaque on ventral edge.
Superfamily : Chalcidoidea
Family : Eulophidae
Classification
Overview
The Tetrastichinae is one of the two largest subfamilies of the Eulophidae, with about 1650 species in 90 genera. Members are common and abundant in all geographic realms. It is currently divided into two tribes: the Gyrolasomyiini contains only 2 species in one genus; the Tetrastichini contains everything else. The biology of Tetrastichinae is extremely varied, with species attacking over 100 different families of hosts in 10 insect orders, as well as spider eggs and gall forming mites and nematodes (La Salle, 1994). Only a relatively few species of Tetrastichinae are parasitoids of leafminers.
Identification
Keys to genera of Tetrastichinae are available for Australasia (Boucek,
1988), Europe (Graham, 1987;
1991) and North America
(La Salle, 1994; Schauff
et al. 1997). Gauthier
et al. (2000) provided a list to all genera in this subfamily.
Noyes (2002; 2003) provided an
electronic catalogue for the entire Chalcidoidea.