Research Article |
Corresponding author: Cheng-De Li ( lichengde0608@yahoo.com.cn ) Academic editor: Thorleif Dörfel
© 2020 Wen-Jian Li, Cheng-De Li.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Li W-J, Li C-D (2020) A new species of Oomyzus Rondani (Hymenoptera, Eulophidae) and first record of O. gallerucae (Fonscolombe) from China, with a key to Chinese species. ZooKeys 950: 41-49. https://doi.org/10.3897/zookeys.950.48795
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Oomyzus flavotibialis sp. nov. is described from Liaoning and Shandong provinces, China. Oomyzus gallerucae (Fonscolombe) is reported for the first time from China. A key to Chinese species of Oomyzus is provided.
Chalcidoidea, new species, taxonomy, Tetrastichinae
The genus Oomyzus currently contains 26 valid species worldwide (
Oomyzus can be recognized by the following combination of characteristics (
In the present paper, a new species of Oomyzus from China is described, O. gallerucae is newly reported from China, and a key to Chinese species is provided.
Specimens were collected by sweep net and most were dissected and mounted dorsally in Canada balsam on steps following the method of
1 | Mid lobe of mesoscutum without median line (Fig. |
2 |
– | Mid lobe of mesoscutum with median line present although sometimes weak | 3 |
2 |
MV 2.1–2.6× as long as STV (Fig. |
O. flavotibialis sp. nov. |
– | MV 3.0–3.7× as long as STV; propodeum with median carina sharply defined; reticulation present | O. scaposus (Thomson) |
3 | Callus with 5–8 setae; F1 as long as pedicel | 4 |
– | Callus with 2 setae; F1 shorter than pedicel | 5 |
4 | Propodeum with median carina (see |
O. sinensis Sheng & Zhu |
– | Propodeum without median carina (see |
O. hubeiensis Sheng & Zhu |
5 | Clava 2.0–2.25× as long as broad; meso- and metabasitarsus hardly shorter than corresponding second tarsomeres | O. sokolowskii (Kurdjumov) |
– | Clava 2.7× as long as broad (Fig. |
O. gallerucae (Fonscolombe) |
Holotype : female [on slide], China, Liaoning Province, Anshan City, Mount Qian Shan, 23.VI.2015, Hui Geng, Yan Gao, Zhi-Guang Wu, and Si-Zhu Liu, by sweeping. Deposited in NEFU.
Paratypes : 8 females, 1 male. China. Liaoning Province, same data as holotype, [1 female on card]; Anshan City, Mount Qian Shan, 25.VI.2015, Hui Geng, Yan Gao, Si-Zhu Liu, and Zhi-Guang Wu, sweeping, [2 females on slides]; Anshan City, Mount Qian Shan, 20.IX.2015, Hui Geng, Yan Gao, and Xin-Yu Zhang, sweeping, [2 females on slides]; Fushun City, 18.VI.2012, Hui Geng, Xiang-Xiang Jin, and Jiang Liu, sweeping, [1 female on slide]; Shandong Province, Pingdu City, Mount Daze, 18.VII.2014, Hui Geng, Yan Gao, Si-Zhu Liu, and Zhi-Guang Wu, sweeping, [2 females, 1 male on slides]. All deposited in NEFU.
Female. Body black with all tibiae yellow; propodeum with median carina poorly defined, spiracle circular, partly exposed, and separated by about its diameter from metanotum; propodeum reticulation absent; MV 2.1–2.6× as long as STV; SMV with two dorsal setae. Male. Antenna with plaque 0.67× as long as scape. Forewing with costal cell 1.4× as long as MV, MV 2.5× as long as STV, SMV with two dorsal setae.
The new species belongs to the incertus-group (
Female. Body length 1.0–1.2 mm (1.1 mm), black with dark-green metallic reflection. Antenna with radicle dark brown, scape mostly yellow, brown along dorsal edge, pedicel with dorsal half brown, ventral half yellow, flagellum yellowish brown. Metasoma oval, smooth, with weak bronze and bluish tint like mesosoma. Wings hyaline, venation yellowish brown. Legs with coxae dark brown, trochanters yellowish brown; basal 2/3 of pro- and metafemora brown with distal 1/3 yellow, a little more than half of mesofemora yellowish brown basally, remaining distal part yellow; tibiae and basal three tarsomeres yellow, last tarsomeres brown to dark brown.
Head
(Fig.
Mesosoma
(Fig.
Metasoma (Fig.
Male. Similar to female. Antenna (Fig.
Unknown.
China (Liaoning, Shandong).
Flavus, Latin for yellow, golden; in reference to the completely yellow tibiae.
China, Liaoning Province, Fushun City, 18.VI.2012, Hui Geng, Xiang-Xiang Jin, and Jiang Liu, sweeping [2 females on slides, NEFU].
Female. Head (Fig.
Our specimens agree well with the description by
Unknown from China. Outside records include: Cassida rubiginosa (Thompson, 1955), Galerucella lineola (Herting, 1973), Galerucella singhara (Husain & Khan, 1986), Galerucella xanthomelaena (Peck, 1963), Xanthogaleruca luteola (Meiners & Hilker, 1997) =Galerucella luteola (
China (Liaoning) [new record], India, Iran, Russia, many countries in Europe, USA, Argentina, Australia.
This project was supported by the National Natural Science Foundation of China (grant no. 31470652) and the Fundamental Research Funds for the Central Universities (grant no. 2572015AA24). We are grateful to reviewers of this paper Dr Zoya Yefremova, Dr John Huber, and Dr John Heraty for correction of many mistakes and for their many constructive suggestions to this paper.