Rhopus

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1 Body color yellow; club usually darker ……..……………………………………… sp. 1
1’ Body color mostly brown …………………………….……………………………….. 2

2(1) Ovipositor not prominent ……………………………………….…………..….  sp. 2
2’ Ovipositor prominent ……..……………………………………………………… sp.  3

 

Sp. 1: Alameda, Contra Costa, El Dorado, Imperial, Lassen, Marin, Placer, Riverside, San Benito, Santa Barbara, Solano, Sonoma, Tuolumne (RLZC, UCD, UCR)
Sp. 2: Alameda, Contra Costa, Marin (EMEC, RLZC)
Sp. 3: Riverside (UCR)

 

Nearctic species and distribution

americanus (Girault, 1915): USA (DC, DE, OR)
nigroclavatus (Ashmead, 1902): USA (IL, IN, NE, SD, VA)

 

References

Ashmead, W.H. 1902. The hymenopterous parasites of Phenacoccus cavalliae, Ckll. Canadian Entomologist 34: 301-302.
Girault, A.A. 1915. New genera of chalcidoid Hymenoptera. Journal of the New York Entomological Society 23: 165-173.