环索赤眼蜂属和窄翅赤眼蜂属三新种记述及一新族的建立(膜翅目:赤眼蜂科)

DESCRIPTIONS OF TWO NEW SPECIES OF HAYATIA AND ONE NEW SPECIES OF PRESTWICHIA FROM CHINA, WITH DISCUSSION ON A HIGHER CATEGORY, NEW TRIBE ETEROLIGOSITINI (HYMENOPTERA: TRICHOGRAMMATIDAE)

本文记述环索赤眼蜂属、窄翅赤眼蜂属3新种。同时,根据环索赤眼蜂属种类的雄性外生殖器特征,调整了Viggiani(1971)的分亚科、分族系统。在寡索赤眼蜂亚科下,增设一个新族Eteroligositini,以容纳环索赤眼蜂属和异茎赤眼蜂属。

Genera Hayatia Viggiani and Prestwichia Lubbock are first recorded for Chinese trichogrammatid fauna. Three new species are described. All type specimens on slides are deposited in the Biological Control Research Institute, Fujian Agriculural College.A study of the male genitalia of 2 new species of Hayatia has revealed that this genus is closely allied to Eteroligosita Viggiani. According to the male genitalia of known species of Trichogrammatidae described by Viggiani(1971, 1884), et al. and since the shape of the male genitalia of both genera, Hayatia and Eteraligosita, is unique in the bisegmented aedeagus and other characteristics, a new tribe Eteroligositini, next to Oligositini under the subfamily Oligositinae, is proposed for the reception of them.1. Hayatia tortuosa sp. nov. (figs. 1—6)It resembles H. indica, but differs from the latter in the proportional lengths of antennal segments, the shape of antenna and male genitatia, the antennal funicle notably larger and the bisegmented aedeagus strongly contorted.Holotype (?), Shouning County (27.3°N, 119.3°E), Fujian Province. Aug. 6, 1986, coll by Liu Gao-sheng. Allotype ♀, same locality as holotype, June 14, 1987, coll. by Lin Ping-hui Paratypes 1(?), 1♀, same data as holotype.Host unknown.2. Hayatia latiuscula sp. nov. (figs. 7—9)This new species is distinctly separatable from the other two known species of this genus in forewing wider, discal cilia denser and the bisegmented aedeagus uncontorted.Female unknown.Holotype (?), Songxi County (27.4N, 118.4°E), Fujian Province. July 23, 1987, coll. by Wu Zu-iian.Host unknown.3. Prestwichia multiciltata sp. nov. (figs. 10—13)It is similar to P. indica, but can be recognized from the latter in more numerous discal cilia on forewing, reticulated mesonotum and different proportional lengths of antennal segments.Male unknown.Holotype ♀, Fuzhou (26.0°N, 119.2°E), Fujian Province. July 3, 1987, Lin Nai-quan collected from yellow-pan trap. Paratypes 8♀♀, same data as holotype, 1♀, Shouning County (27.3°N, 119.3°E), Fujian Province, June 11, 19 87, Lin Ping-hui collected from yellow-pan trap.Host unknown.