Quadrastichus sajoi ( Szelenyi , 1941)

Li, Wen-Jian & Li, Cheng-De, 2023, Three new species of Quadrastichus Girault (Hymenoptera, Eulophidae) from China with a key to Chinese species, ZooKeys 1187, pp. 169-188 : 169

Quadrastichus sajoi ( Szelenyi, 1941)

Figs 35 , 36-41

Myiomisa sajoi Myiomisa sajoi Szelényi, 1941: 92. [Justified emendation by Graham 1991: 71]

Tetrastichus sajoi : Vereshchagina 1961: 31.

Aprostocetus scabricollis Graham, 1961a: 18. [Synonymised by Graham 1991: 71]

Quadrastichus sajoi : Graham 1991: 71; Zhu and Huang 2002: 598.

Cecidotetrastichus sajoi : Kostjukov 1997: 800.

Material examined.

4 females: [2 females on cards], China, Yunnan Province, Tengchong City, Village Pojiao, 1.V.2013, Xiang-Xiang Jin, Guo-Hao Zu, by sweeping, deposited in YCTU; [1 female on card], China, Jiangxi Province, Yichun City, Mt. Guan Shan , 21.VIII.2018, Xiang-Xiang Jin, Wang-Ming Li, by sweeping, deposited in NEFU; [1 female on slide], China, Jiangxi Province, Yichun City , Mt. Guan Shan , 22.VIII.2018, Xiang-Xiang Jin , Wang-Ming Li , by sweeping, deposited in NEFU .

Diagnosis.

Female. Malar sulcus (Fig. 35 ) distinctly curved, with a large subtriangular fovea below eye. Pronotum (Figs 35 , 38 ) with 4 coarsely reticulate yellowish areas, remaining surface dark. Mid lobe of mesoscutum with 2-3 adnotaular setae on each side. Fore wing (Fig. 39 ) narrow, 2.2-2.5 × as long as broad; MV 3.5-4.0 × STV; SMV with 1 dorsal seta; speculum small, marginal setae long.

Male. Unknown for Chinese material.

Hosts.

Unknown from China. Non-Chinese records include Acalitus phloeocoptes (Mezei, 1995) ( Acari: Eriophyidae ).

Distribution.

China (Gansu, Shaanxi, Guangxi ( Zhu and Huang 2002), Jiangxi, Yunnan [New records]), Montenegro, Moldova, Serbia, Croatia ( Bouček 1977), Syria, Czechoslovakia, Germany, Hungary, Italy, England, Russia ( Graham 1991).

Comments.

This species can be distinguished from other Quadrastichus species by the pronotum with four coarsely reticulate yellowish areas, with the remaining surface dark.

Figures

Figure 35. Quadrastichus sajoi (Szelenyi), female 35 habitus, lateral view. Scale bar: 500 μm.

Figures 36 - 41. Quadrastichus sajoi (Szelenyi), female 36 head, frontal view 37 antenna, lateral view 38 mesosoma, dorsal view 39 fore and hind wings, dorsal view 40 legs, lateral view, from left to right: mid and hind legs 41 metasoma, ventral view. Scale bars: 100 μm.