Research Article |
Corresponding author: Cheng-De Li ( lichengde0608@sina.com ) Academic editor: Kees van Achterberg
© 2021 Zi-Tong Wang, 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:
Wang Z-T, Li C-D (2021) Three new species, and new distributional data, of Haltichella (Hymenoptera, Chalcididae) from China. ZooKeys 1060: 1-16. https://doi.org/10.3897/zookeys.1060.70427
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Five species of Haltichella (Hymenoptera, Chalcididae) from China are reviewed, including three new species, H. bimaculata Wang & Li, sp. nov., H. bomiana Wang & Li, sp. nov., H. strigata Wang & Li, sp. nov. Haltichella clavicornis (Ashmead) is newly recorded from China and H. nipponensis Habu is newly recorded from Heilongjiang, Shanxi, Shandong, Xizang, Guangdong and Yunnan Provinces in China. A key to the Chinese species of the Haltichella is provided.
Chalcidoidea, chalcid wasps, Haltichellini, Haltichellinae, identification key, taxonomy
The genus Haltichella Spinola, 1811 (Chalcididae, Haltichellinae, Haltichellini) currently contains 35 valid species worldwide (
Specimens were collected by using sweep nets, yellow pan traps and Malaise traps, and glued to triangle cards. Photographs were taken with a digital CCD camera attached to an AOSVI Hk830 microscope. Relative measurements and total body lengths were measured using an eye-piece reticle in the ocular of the microscope. All the specimens examined were deposited in the insect collections at Northeast Forestry University (NEFU), Harbin, China. In addition, literature used to identify this genus mainly include the keys and original descriptions of
NEFU Northeast Forestry University, Harbin, China;
NIAS National Institute of Agricultural Sciences, Tokyo, Japan;
The following abbreviations are used in the text:
Fu1–7 funiculars 1–7;
OOL oculo-ocellar distance, minimum distance between a posterior ocellus and eye;
POL postocellar distance, the distance between both posterior ocelli;
Gt1–2 tergites 1–2 of metasoma;
YPT yellow pan trap.
1 | Apex of mesoscutellum not emarginate and without any distinct tooth | 2 |
– | Apex of mesoscutellum emarginate forming two distinct teeth (Figs |
3 |
2 | Forewing with two blackish bands, marginal vein 0.25× as long as submarginal vein; metasoma fusiform, a little longer but not narrower than mesosoma | H. sulcator Walker |
– | Forewing without blackish bands, marginal vein half as long as submarginal vein; metasoma elongate-oval, a little narrower but hardly longer than mesosoma | H. finator Walker |
3 | Metasoma with more than two basal carinae on Gt1 (Figs |
4 |
– | Metasoma with only two basal carinae on Gt1 | 5 |
4 | Mesoscutellum with a median longitudinal fovea; apex of mesoscutellum with two diverging and short teeth (Fig. |
H. clavicornis (Ashmead) |
– | Mesoscutellum without a median longitudinal fovea; apex of mesoscutellum with two diverging and longer teeth (Fig. |
H. strigata Wang & Li, sp. nov. |
5 | Forewing with two brown patches (Fig. |
6 |
– | Forewing at most with one patch; scrobe not reaching anterior ocellus (Figs |
7 |
6 | Postmarginal vein absent (Fig. |
H. bimaculata Wang & Li, sp. nov. |
– | Postmarginal vein present and shorter than stigmal vein (Fig. |
H. nipponensis Habu |
7 | First tooth of metafemural comb of teeth prominent; postmarginal vein longer than marginal vein | H. variicolor Masi |
– | First tooth of metafemural comb of teeth not prominent (Fig. |
H. bomiana Wang & Li, sp. nov. |
Holotype, ♀ (NEFU), China, Henan Province, Xinyang City, 17–18.V.2012, YPT, Guo-Hao Zu, Jiang Liu. Paratypes (NEFU): 1 ♀, China: Yunnan Province, Huanglianshan Nature Reserve, 27–28.VII.2018, YPT, Jun Wu, Ming-Rui Li.
Body black (Fig.
Female (holotype). Body length 2.9 mm, mostly black (Fig.
Head
(Fig.
Mesosoma
(Fig.
Metasoma
(Fig.
Male. Unknown.
Unknown.
China (Hennan, Yunnan).
Latin: bi = two; macula = stain, blemish; and refers to the two brown patches on the forewing.
Haltichella bimaculata sp. nov. is similar to H. nipponensis Habu, 1960 in having similar body colouration and shape of the antenna and similar shape of the metafemur, but can be separated from the latter by the following characters. Haltichella bimaculata has the postmarginal vein of the forewing absent (vs present and shorter than the stigmal vein in H. nipponensis); median area of the propodeum irregularly rugose and the submedian carinae not obvious (vs less sculptured and the carinae distinct and parallel); the mesoscutellum as long as broad (vs longer than broad).
Holotype, ♂ (NEFU), China, Xizang Province, Bomi County, Shuangyu Village, 8.VIII.2017, sweeping, Hui-Lin Han. Paratypes (NEFU): 2 ♂, same data as holotype.
Body black (Fig.
Male (holotype). Body length 2.9 mm, mostly black (Fig.
Head
(Fig.
Mesosoma
(Fig.
Metasoma
(Fig.
Female. Unknown.
Unknown.
China (Xizang).
The specific name is derived from the name of the collection locality of the holotype.
The new species is similar to H. variicolor Masi, 1929 in having similar colouration and shape of the antenna and similar shape of the scrobe, but can be separated from the latter by the following characters. The new species has the marginal vein 1.6× as long as the postmarginal vein (vs postmarginal vein longer than marginal vein in H. variicolor) and metafemur without prominent first tooth (vs first tooth present and prominent).
The new species is characterized by two diverging teeth of the mesoscutellum, a unique propodeum and the scrobe not reaching the anterior ocellus. A female holotype would be preferable but we failed to collect female specimens. However, most likely the female will share at least part of the differences listed for the male holotype.
Holotype, ♂ (NEFU), China, Heilongjiang Province, Harbin City, Maoershan Town, 19.VII.2014, sweeping, Hai-Feng Bai. Paratypes (NEFU): 1 ♂, China: Heilongjiang Province, Yichun City, Liangshui National Nature Reserve, 11.VII.2013, sweeping, Hui Geng, Yang Peng, Si-Zhu Liu, Guo-Hao Zu; 1 ♂,China: Heilongjiang Province, Yichun City, Liangshui National Nature Reserve, 1.VIII.2015, sweeping, Xing-Yue Jin, Si-Zhu Liu, Xin-Yu Zhang; 1 ♂, China: Heilongjiang Province, Yichun City, Fenglin National Nature Reserve, 15.VII.2011, sweeping, Jun-Chao Wang.
Body mostly black (Fig.
Male (holotype). Body length 2.9 mm, mostly black (Fig.
Head
(Fig.
Mesosoma
(Fig.
Metasoma
(Fig.
Female. Unknown.
Unknown.
China (Heilongjiang).
Two paratypes differ from the holotype by having black eyes, but no other significant differences were found in the available material.
Latin: stria = furrow, line; and refers to the longitudinal striae between two longitudinal carinae of T1.
Haltichella strigata sp. nov. is similar to H. achterbergi Narendran, 1989 in having a similar shape of the antenna and the metasoma, but can be separated from the latter by the following combination of characters. The new species has the fore wing hyaline (vs partly infuscated in H. achterbergi); Gt1 with some striae between the two longitudinal carinae (vs absent); postmarginal vein shorter than the marginal vein (vs longer); dorsal surface of Gt 2–6 with white pubescence (vs glabrous and polished on the dorsal side medially).
Compared with other species of this genus, the new species differs by having dense and long setae on its eyes (Fig.
New distributional records for China.
Stomatoceras clavicornis
Ashmead, 1904: 148; holotype ♂,
Haltichella clavicornis:
Haltichella macroclava
Roy & Farooqi, 1984: 27; holotype ♀,
(NEFU). 1 ♀, China: Henan Province, Xinyang City, Wusheling, 7–9. VIII. 2015, YPT, Yan Gao, Hui Geng, Zhi-Guang Wu; 1 ♀ 2 ♂, China: Hainan Province, Haikou City, Haida Base, 27–29.IV.2019, YPT, Yu-Ting Jiang; 1 ♀, id., but Pinnacle Ridge, 17–19.V.2021, Gang Fu, Ming-Rui Li; 1 ♀, China: Yunnan Province, Yuanjiang County, 26–28.XI.2020, YPT, Jun-Jie Fan, Ming-Rui Li, Gang Fu, Jun Wu; 1 ♀, id., but Mengla Town, Mengla County, 17–18. XI. 2020.
Female. Body length 2.8–3.1 mm, mostly black (Fig.
Male. Body length 2.8–2.9 mm. Scape and pedicel brown, flagellum brownish black (Fig.
Unknown.
China (Henan [new record], Hainan [new record], Yunnan [new record]), Japan, Laos, India, Malaysia, Vietnam, Nepal, Philippines (
Our specimens agree well with the original description except for the colour of the antenna and metasoma. This is the first record from Henan, Hainan and Yunnan Provinces, China.
Haltichella nipponensis Habu, 1960: 245; holotype ♀, NIAS, Japan, not examined.
(NEFU). 2 ♀, China: Xizang Province, Chayu County, Gadui Village, 14–16.V.2015, YPT, Ye Chen, Chao Zhang; 1 ♀, id., but Talin Village, 6–13.VII.2017, Malaise trap, Sang Tuo; 3 ♀, China: Xizang Province, Linzhi City, Bomi County, Shuangyu Village, 8. VIII. 2017, sweeping, Hui-Lin Han; 1 ♀, China: Yunnan Province, Ruili City, Nanjingli Village, 26–27.IV.2013, YPT, Xiang-Xiang Jin, Guo-Hao Zu, Chao Zhang; 1 ♀; id., but Huanglianshan National Nature Reserve, 27–28.VII.2018, YPT, Jun Wu, Ming-Rui Li; 1 ♀, China: Shanxi Province. Ningshan County, Xunyangba Village, 5–6.VIII.2015, YPT, Ye Chen, Chao Zhang; 2 ♀, China, Shandong Province, Qingdao City, Xiaozhushan, 20.V.2014, sweeping, Xiang-Xiang Jin, Guo-Hao Zu, Si-Zhu Liu; 1 ♀, id., but 22–24.V.2014; 1 ♀, China: Heilongjiang Province, Yichun City, Liangshui National Nature Reserve, 30.VI.–2.VII.2018, YPT, Jun Wu, Jun-Jie Fan, Guang-Xin Wang; 1 ♀, id., but 2–3.VII.2018; 1 ♀, China: Guangdong Province, Zhaoqing City, DingHu Mountain, 6–7.V.2019, YPT, Wen-Jian Li, Jun Wu.
Female. Body length 2.7‒4.3 mm, mostly black (Fig.
Unknown.
China (Heilongjiang [new record], Shanxi [new record], Shandong [new record], Xizang [new record], Yunnan [new record], Guangdong [new record], Taiwan), Japan, India (
Our specimens agree well with the original description except for slight colour differences of the teeth of the mesoscutellum. This is the first record from continental China.
Thanks to Prof Hui-Lin Han, Dr Xiang-Xiang Jin, Dr Guo-Hao Zu, Dr Chen Ye, Dr Hui Geng, Dr Si-Zhu Liu, Dr Jun Wu, Dr Ming-Rui Li, Mr Guang-Xin Wang, Mr Hai-Feng Bai, Mr Jun-Chao Wang, Mr Zhi-Guang Wu, Mr Jiang Liu, Mr Tuo Sang, Miss Yang Peng, Miss Xing-Yue Jin, Miss Chao Zhang, Miss Xin-Yu Zhang and Miss Yan Gao for specimen collection.