Tachardiobius silvestrii De Santis 1954

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 : 48

Tachardiobius silvestrii De Santis 1954

( Figs 9–11 )

Tachardiobius silvestrii De Santis 1954: 188 –191 (first time mentioned as “ Silvestrii ”); De Santis 1964: 215 –218; De Santis 1967: 161; Noyes 1980: 231.

Type locality. Puerto Madryn, Chubut, Argentina .

Type material examined. Holotype female on slide [ MLPA], labeled: 1. “ Tachardiobius silvestrii Det. De Santis HOLOTIPO 1956/1 MUSEO DE LA PLATA ”; 2. “Puerto Madryn (Gob. Chubut) s/ Tachardiella argentina Col. : Torres – De Santis II/1951 Ψ. Also 2 paratype females on slides [ MLPA, UCRC], with the same label data as holotype except for the different paratype numbers.

Diagnosis. FEMALE. Body length 1.25–1.35 mm. Body mostly dark brown, appendages light brown to brown (funicle uniformly brown, meso- and metatibiae mostly brown except light brown apically). Antenna ( Fig. 9 ) with scape about 4.1 x as long as wide; F1–F5 each at least a little longer than wide, F6 about as long as wide; clava about 2.1 x as long as wide. Forewing ( Fig. 11 ) about 2.3 x as long as wide, with disc almost hyaline. Ovipositor not exserted ( Fig. 10 ), ovipositor length: metatibia length ratio about 1.2:1.

MALE. Unknown.

Distribution. Argentina (Chubut) .

Host.? Tachardiella argentina (Dominguez) ( De Santis 1954) .

Comments. This species was described from a female holotype and three female paratypes, all with the same label data ( De Santis 1954). The third paratype specimen is deposited in the USNM ( De Santis 1964).

Figures

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