Quadrastichus vacuna (Walker, 1839)

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 vacuna (Walker, 1839)

Figs 27-32 , 33 New record for China

Cirrospilus vacuna Walker, 1839a: 305.

Cirrospilus numeria Walker, 1839a: 321. [Synonymised by Graham 1961b: 43]

Cirrospilus quercens Walker, 1839a: 307. [Synonymised by Graham 1961b: 43]

Cirrospilus alcithoe Cirrospilus alcithoe Walker, 1839b: 416. [Synonymised by Graham 1961b: 43]

Cirrospilus rhoesus Walker, 1839b: 417. [Synonymised by Graham 1961b: 43]

Cirrospilus sotades Walker, 1839b: 417. [Synonymised by Graham 1961b: 43]

Cirrospilus brunchus Walker, 1840: 236. [Synonymised by Graham 1961b: 43]

Tetrastichus quercens : Walker 1846: 76.

Tetrastichus alcithoe : Walker 1846: 78.

Tetrastichus rhoesus : Walker 1846: 78.

Tetrastichus vacuna : Walker 1848: 149.

Tetrastichus numeria : Walker 1848: 150.

Tetrastichus brunchus : Walker 1848: 151.

Tetrastichus migrator Fӧrster, 1861: 38. [Synonymised by Graham 1961b: 43]

Tetrastichus penetrans Fӧrster, 1861: 38. [Synonymised by Graham 1961b: 43]

Tetrastichus compressiventris Thomson, 1878: 286. [Synonymised by Graham 1961b: 43]

Aprostocetus vacuna : Graham 1961: 42.

Quadrastichus vacuna : Graham and LaSalle 1991: 94.

Qudrastichus vacuna : Boyadzhiev 2003: 82. [Misspelling]

Material examined.

5 females: [3 females on cards], China, Shangdong Province, Qindao City, Mt. Lao Shan , 11-13.VII.2014, Guo-Hao Zu, Zhi-Guang Wu, Hai-Feng Bai, by yellow-pan trapping, deposited in YCTU; [1 female on card, 1 female on slide], China, Xizang Province, Linzhi City , Mt. Sejila Shan , 20-24.VIII.2014, Hui- Lin Han , by yellow-pan trapping, deposited in NEFU .

Diagnosis.

Female. Body (Fig. 33 ) black without yellow markings. Antenna (Fig. 28 ) with scape nearly reaching vertex but not extending beyond it, clava 2.7-3.0 × as long as broad. Mid lobe of mesoscutum (Fig. 29 ) with 2-3 adnotaular setae on each side. Propodeum with median carina and paraspiracular carinae. Gaster lanceolate, acuminate, 2.5-4.0 × as long as broad, distinctly longer than head and mesosoma combined.

Male. Unknown for Chinese material.

Hosts.

Unknown from China. Non-Chinese records include Dasineura ulmariae ( Graham 1991) and Leucoptera scitella ( Herting 1975) ( Diptera : Cecidomyiidae ) and Heterarthrus vagans ( Askew and Shaw 1974) ( Hymenoptera : Tenthredinidae ).

Distribution.

China (Xizang, Shandong), Russia, Italy, Hungary, Bulgaria ( Boyadzhiev 2003), Netherlands ( Gijswijt 2003), Romania ( Hansson 2016), Austria, Norway, Poland, Switzerland, Sweden, Czechoslovakia, France, England, Ireland, ( Graham 1991).

Comments.

Graham (1991) reported that this species occasionally has two dorsal setae on the SMV. However, all specimens we examined only have one dorsal seta on the SMV.

Figures

Figure 33. Quadrastichus vacuna (Walker), female 33 habitus, lateral view. Scale bar: 500 μm.

Figures 27 - 32. Quadrastichus vacuna (Walker), female 27 head, frontal view 28 antenna, lateral view 29 mesosoma, dorsal view 30 fore and hind wings, dorsal view 31 legs, lateral view, from left to right: fore, mid, and hind legs 32 metasoma, ventral view. Scale bars: 100 μm.