Tetracnemoidea

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1 Body with yellow band medially (scutellum, mesopleura, ventrally)………………. sp. 1
1’ Body completely dark ………………………….……………………………………… 2

2(1) Scape completely light ………………………………………………………….. sp. 2
2’ Scape at least partially darkened ……………………………………………………… 3

3(2) Wings maculated centrally, scape yellow medially and dark laterally …  sydneyensis
3’ Wings completely hyaline, scape light basally and dark apically………………..…… 4

4(3) Scape short, no longer than pedicel plus first 2 funicle segments ………………. sp. 3
4’ Scape as least as long as pedicel plus first 3 funicle segments ………………..……… 5

5(4) F1 shorter than F2 ……………………………………….……..………… peregrina
5’ F1 longer than F2 ………………………………………………………….. brevicornis

 

Sp. 1: Alameda, Marin, Stanislaus (RLZC), Santa Barbara (SBNH)
Sp. 2: San Diego (UCR)
Sp. 3 Marin (RLZC)

 

Nearctic species and distribution

brevicornis (Girault, 1915): Introduced into USA (CA)
peregrina (Compere, 1939): Introduced into USA (CA)
sydneyensis (Timberlake, 1929): Introduced into USA (CA)
westwoodi (Cockerell, 1898): CAN (QC); USA (CO, ME)

 

References

Cockerell, T.D.A. 1898. Note on a chalcidid of the subfam. Encyrtinae, parasitic on Phenacoccus minimus. The Canadian Entomologist  30: 224.
Compere, H. 1939. Mealybugs and their natural enemies in South America. University of California Publications in Entomology 7: 57-73.
Girault, A.A. 1915. New genera of chalcidoid Hymenoptera. Journal of the New York Entomological Society 23: 165-173.
Timberlake, P.H. 1929. Three new species of the hymenopterous family Encyrtidae from New South Wales. University of California Publications in Entomology 5: 5-18.