Tachardiobius

Triapitsyn, Serguei V., 2008, A review of Tachardiobius (Hymenoptera: Encyrtidae), with description of a new species from California, USA, a parasitoid of Tachardiella spp. (Hemiptera: Kerriidae), Zootaxa 1716, pp. 44-52 : 45-46

Key to species of Tachardiobius

1 Female (clava 3-segmented)......................................................................................................................2

- Male (clava entire or 2–segmented, sometimes the subdivision is indistinct or incomplete; not known for T. silvestrii De Santis )................................................................................................................................4

2(1) Meso- and metatibiae mostly whitish, with two submedial dark bands (best observed in lateral view, Fig. 3 ) ........................................................................................................................... T. nigricans Timberlake

- Meso- and metatibiae brown to dark brown, at most light brown basally and apically............................3

3(2) F3–F5 longer than wide ( Fig. 9 ) ............................................................................... T. silvestrii De Santis

- F3–F5 wider than long ( Fig. 12 ) ..................................................................................... T. vladimiri sp. n.

4(1) Funicle segments longer than wide ( Fig. 6 ); meso- and metatibiae mostly whitish, with two submedial dark bands (best observed in lateral view, as in Fig. 3 ) ........................................ T. nigricans Timberlake

- Funicle segments wider than long ( Fig. 16 ); meso- and metatibiae brown to dark brown, at most light brown basally and apically ............................................................................................. T. vladimiri sp. n.

Figures

FIGURES 1 – 5. Tachardiobius nigricans, female (Riverside County, California, USA). 1. Antenna. 2. Head (rear view). 3. Middle leg. 4. Mesosoma and metasoma. 5. Forewing.

FIGURES 9 – 11. Tachardiobius silvestrii, female (holotype). 9. Antenna. 10. Mesosoma and metasoma. 11. Forewings.

FIGURES 12 – 15. Tachardiobius vladimiri sp. n., female (holotype). 12. Antenna. 13. Head (rear view). 14. Mesosoma, metasoma, and legs. 15. Fore and hind wings.

FIGURES 6 – 8. Tachardiobius nigricans, male (Riverside County, California, USA). 6. Antenna. 7. Forewing. 8. Genitalia.

FIGURES 16 – 18. Tachardiobius vladimiri sp. n., male (paratypes). 16. Antenna. 17. Forewing. 18. Genitalia.