Biodiversity Data Journal :
Taxonomy & Inventories
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Corresponding author: So Shimizu (parasitoidwasp.sou@gmail.com)
Academic editor: Mostafa Ghafouri Moghaddam
Received: 13 Mar 2023 | Accepted: 14 Apr 2023 | Published: 19 Apr 2023
© 2023 So Shimizu, Hsuan-Pu Chen, Kai-Ti Lin, Ren-Jye Chen, Shunpei Fujie, Su-Chuan Hung, Mei-Ling Lo, Ke-Hsiung Tsai, Kaoru Maeto
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:
Shimizu S, Chen H-P, Lin K-T, Chen R-J, Fujie S, Hung S-C, Lo M-L, Tsai K-H, Maeto K (2023) Online citizen sciences reveal natural enemies and new occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae). Biodiversity Data Journal 11: e103436. https://doi.org/10.3897/BDJ.11.e103436
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Citizen science is a research approach that involves collaboration between professional scientists and non-professional volunteers. The utilisation of recent online citizen-science platforms (e.g. social networking services) has greatly revolutionised the accessibility of biodiversity data by providing opportunities for connecting professional and citizen scientists worldwide. Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) has been recorded from the Oriental Islands of Japan and known to be a gregarious endoparasitoid of two macro-sized sphingid moths of Macroglossum, Ma. passalus (Drury) and Ma. pyrrhosticta Butler. It constructs characteristic star-shaped communal cocoons, suspended by a long cable. Although M. stellatus has been reported only from the Oriental Islands of Japan, the authors recognise its occurrence and ecological data from Taiwan and the Palaearctic Island of Japan through posts on online citizen-science groups about Taiwanese Insects on Facebook and an article on a Japanese citizen-scientist's website.
Through collaboration between professional and citizen scientists via social media (Facebook groups) and websites, the following new biodiversity and ecological data associated with M. stellatus are provided:
The nature of suspended large-sized communal cocoons of M. stellatus and the importance and limitations of digital occurrence data and online citizen science are briefly discussed.
Facebook, Ichneumonidae, Lepidoptera, parasitoid wasp, predator, Pteromalidae, social media, Sphingidae, Trichogrammatidae, Vespidae
Citizen science is a research approach that involves collaboration between professional scientists and non-professional volunteers, aimed at enhancing the ability of scientific data collection and expanding its purview to scales or resolutions beyond the capabilities of individual researchers or research teams and has made significant contributions to science, education and society (e.g.
For only professional scientists, it would be hardly possible to obtain comprehensive biodiversity data of hyper-diverse life on Earth. Biodiversity studies have, therefore, traditionally been supported by not only professional researchers, but also amateur citizen scientists. Natural history museums historically play a central role in supporting amateur scientists and developing citizen science up to date (
Meteorus stellatus Fujie, Shimizu & Maeto, 2021 is a recently described braconid parasitoid wasp species of the M. pulchricornis clade from the Oriental Region, Ryukyu Islands, Japan (
Although M. stellatus has been reported only from the Oriental Islands of Japan, the authors recognise its occurrence and ecological data from Taiwan and the Palaearctic Island of Japan through posts on online citizen-science groups about Taiwanese Insects on Facebook and an article on a Japanese citizen-scientist's website. Therefore, the authors conducted an online citizen science-based investigation on M. stellatus via social media and the present paper aims to record M. stellatus from these regions for the first time, to report some new ecological data associated with it and to re-evaluate the function of the characteristic cocoon.
All digital occurrence data of M. stellatus were manually compiled from three online citizen-science groups of Taiwanese insects on Facebook (Table
A list of online citizen-science groups on Facebook focused on Taiwanese insects. These groups were utilised to compile digital occurrence data of M. stellatus from Taiwan. The number of group members was verified on 26 January 2023.
English name | Abbreviation | Mandarin name | Members |
---|---|---|---|
Ichneumonoidea of Taiwan | IchT | 姬繭風—臺灣的姬蜂總科 | 964 |
Insects Forum of Taiwan | IFT | 昆蟲各種問題貼圖討論區 | 33,488 |
Taiwan Hymenopterist Club | THC | 臺灣膜翅目研究社 | 2,931 |
The compiled digital occurrence data of M. stellatus and related insects (i.e. hosts, hyperparasitoids and predators) were initially identified, based on images or movies. Subsequently, identification was confirmed by morphological observation of specimens using a stereoscopic microscope (SMZ1500, Nikon, Tokyo, Japan) if the original samples were available. Examined specimens were mounted and preserved in public institutions (Table
Abbreviation | Repository name | Curator |
---|---|---|
KPM | Kagoshima Prefectural Museum, Kagoshima, Japan | Atsuko Nakamine |
NMNS | National Museum of Natural Science, Taichung, Taiwan | Jing-Fu Tsai |
TARI | Taiwan Agricultural Research Institute, Taichung, Taiwan | Chi-Feng Lee |
The habitus of M. stellatus was newly photographed for the present paper with the technique described by
Meteorus stellatus Fujie, Shimizu & Maeto, 2021: 27; holotype ♀ from Japan, deposited at Osaka Museum of Natural History, Osaka, Japan (OMNH).
See the "Taxon treatment" section of
Eastern Palaearctic (Japan) (present paper) and Oriental Regions (Japan and Taiwan) (
Distribution map of digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) from Taiwan. Red square: occurrence data with host record, yellow triangle: occurrence data for those attacked by hyperparasitoids, black circle: normal occurrence data, blue rhombus: occurrence data for those attacked by predators.
A total of 25 digital occurrence data of M. stellatus were compiled. Twenty-two of them were permitted by the posters for reuse of their data in the present paper (Table
List of sources for digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021. The IDs link to the identifiers in the "Materials" section of M. stellatus.
ID | Locality | Adult | Cocoon | Host | Parasitoid | Predator |
---|---|---|---|---|---|---|
a | TW | n/a | Fig. |
Fig. |
n/a | n/a |
b | TW | n/a | Fig. |
n/a | n/a | n/a |
c | TW | n/a | Fig. |
n/a | n/a | n/a |
d | TW | n/a | Fig. |
n/a | Fig. |
n/a |
e | TW | n/a | Fig. |
n/a | Fig. |
n/a |
f | TW | n/a | Fig. |
n/a | n/a | n/a |
g | TW | n/a | Fig. |
n/a | n/a | n/a |
h | TW | n/a | Fig. |
n/a | n/a | n/a |
i | TW | n/a | Fig. |
n/a | n/a | n/a |
j | TW | n/a | Fig. |
n/a | n/a | n/a |
k | TW | n/a |
Fig. |
n/a | n/a |
Fig. |
l | TW |
Fig. |
Fig. |
Fig. |
n/a | n/a |
m | TW | n/a | Fig. |
n/a | Fig. |
n/a |
n | TW | n/a | Fig. |
Fig. |
n/a | n/a |
o | TW | n/a | Youtube | n/a | n/a | Youtube |
p | TW | n/a | Fig. |
n/a | n/a | n/a |
q | JP | Fig. |
Fig. |
n/a | n/a | n/a |
r | TW | Fig. |
Fig. |
Fig. |
n/a | n/a |
s | TW | n/a | Fig. |
n/a | Fig. |
n/a |
t | TW | n/a | Fig. |
Fig. |
n/a | n/a |
u | TW | n/a | Fig. |
n/a | Fig. |
n/a |
v | TW | Fig. |
Fig. |
n/a | n/a | n/a |
Source photographs of digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) from Taiwan, based on suspended communal cocoons: a. photographed by Ching-Chang Hsu on 4.XI.2018 in Zhanshan trail, Mt. Guanyin, Bali Dist., New Taipei City; b. photographed by Hua-Ting Cheng on 11.VII.2018 in Taiwan; c. photographed by Shu-Ling Lin on 19.VII.2018 in Lugu township, Nantou County; d. photographed by Hwei-Shan Lai on 14.VII.2022 in Majiao historical trail, Shihlin Dist., Taipei City; e. photographed by Shu-Ping Yang on 24.VIII.2013 in Mt. Dalunwei, Shihlin Dist., Taipei City; f-g. photographed by Shuling Yang on 13.XI.2018 in Taipei City; h. photographed by Tieh Hu (胡蝶) on 7.XII.2013 in Yangmingshan National Park, Beitou Dist., Taipei City; i-k. photographed by Shuling Yang on 12.XI.2018 in Fuhe wetlands, Yonghe Dist., New Taipei City.
Source photographs of digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) and its host moth of Hippotion celerio (Linnaeus, 1758) (Lepidoptera, Sphingidae) from Taiwan observed by Chean-Yueh Chang & Chun-Chung Su on 29.XI.2021: a. H. celerio parasitised by M. stellatus; b. large communal cocoons of M. stellatus; c. small cocoons of M. stellatus.
Source photographs of digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) and its host moth of Macroglossum sitiene (Walker, 1856) (Lepidoptera, Sphingidae) from Taiwan observed by Kai-Ti Lin on 5.XI.2021: a. upper end of a long cable of communal cocoon of M. stellatus; b. long cable of communal cocoon of M. stellatus; c. suspended communal cocoon of M. stellatus by a long cable; d. host larva of Ma. sitiene; e. larva of M. stellatus; f. early stage of communal cocoon construction behaviour of M. stellatus; g. middle stage of communal cocoon construction behaviour of M. stellatus; h. final stage of communal cocoon construction behaviour of M. stellatus.
Source photographs of digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) and its host moth of Macroglossum passalus (Drury, 1773) (Lepidoptera, Sphingidae) from Taiwan observed by Ren-Jye Chen on 12.II.2023: a. upper end of a long cable of a communal cocoon of M. stellatus with host larva of Ma. passalus; b. long cable of M. stellatus; c. lower end of a long cable of a communal cocoon of M. stellatus; d. communal cocoon and emerged adult wasps of M. stellatus; e. communal cocoon of M. stellatus with host larva of Ma. passalus.
Source photographs of digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) and its host moth of Cechetra minor (Butler, 1875) (Lepidoptera, Sphingidae) from Taiwan observed by Mei-Ling Lo on 14.VII.2012: a. communal cocoon of M. stellatus; b. emerging larvae of M. stellatus from thier host body; c. host moth larva of M. stellatus.
Source photographs of digital occurrence data of hyperparasitoid wasps of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) from Taiwan observed by Taiwanese citizen scientists: a. communal cocoon of M. stellatus and adult hyperparasitoid wasp of Pteromalidae (photographed by Jui-Chen Hsieh on 30.II.2016); b. communal cocoon of M. stellatus and adult hyperparasitoid wasp of Pteromalidae (photographed by Ren-Jye Chen on 15.I.2018); c-d. communal cocoon of M. stellatus and adult hyperparasitoid wasp of Pteromalidae (photographed by Chun-Che Chien on 9.XI.2021); e. communal cocoon of M. stellatus and adult hyperparasitoid wasp of Trichogrammatidae (photographed by Mei-Ling Lo on 23.XII.2015); f-g. communal cocoon of M. stellatus and emerged adult hyperparasitoid wasps of the Darwin wasp genus Mesochorus sp. (photographed by Chun-Chun Deng on 21.I.2022).
Source photograph of digital occurrence data of predator of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) from Taiwan observed by Ke-Hsiung Tsai. A female paper wasp worker of Parapolybia varia (Fabricius, 1787) (Hymenoptera, Vespidae) attacking a suspended communal cocoon of M. stellatus.
Source photographs of digital occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021 (Hymenoptera, Braconidae, Euphorinae) from Yakushima Is., Japan (photographed by Sukenobu Konishi and Touta Takami in 2021): a. communal cocoon before emerging adult wasps; b. communal cocoon after emerging adult wasps; c. emerged female adult wasp on a one-yen coin.
Seven physical occurrence data were also listed in the present paper (Table
List of sources and depositories for physical occurrence data of Meteorus stellatus Fujie, Shimizu & Maeto, 2021. The IDs link to the identifiers in the "Materials" section of M. stellatus.
ID | Locality | Adult | Cocoon | Host | Parasitoid | Predator |
---|---|---|---|---|---|---|
w | TW | n/a | NMNS | n/a | n/a | n/a |
x | TW | n/a | NMNS | n/a | n/a | n/a |
y | TW | TARI | n/a | n/a | n/a | n/a |
z | TW | TARI; Fig. |
n/a | n/a | n/a | n/a |
aa | TW | n/a | TARI; Fig. |
n/a | n/a | n/a |
ab | TW | TARI; Fig. |
n/a | n/a | n/a | n/a |
ac | JP | KPM | KPM | n/a | n/a | n/a |
A total of 12 insect taxa were recognised as being associated with M. stellatus (Table
Insects associated with Meteorus stellatus Fujie, Shimizu & Maeto, 2021. "Lep." = "Lepidoptera", "Hym." = "Hymenoptera".
Type | Order | Family | Species | Source |
---|---|---|---|---|
Host | Lep. | Sphingidae | Cechetra minor | Fig. |
Host | Lep. | Sphingidae | Hippotion celerio | Fig. |
Host | Lep. | Sphingidae | Macroglossum passalus | |
Host | Lep. | Sphingidae | Macroglossum pyrrhosticta |
|
Host | Lep. | Sphingidae | Macroglossum sitiene | Fig. |
Parasitoid | Hym. | Ceraphronidae | Aphanogmus sp. |
|
Parasitoid | Hym. | Eulophidae | Tetrastichus sp. |
|
Parasitoid | Hym. | Eurytomidae | Eurytoma sp. |
|
Parasitoid | Hym. | Ichneumonidae | Mesochorus sp. | Fig. |
Parasitoid | Hym. | Pteromalidae | n/a | Fig. |
Parasitoid | Hym. | Trichogrammatidae | n/a | Fig. |
Predator | Hym. | Vespidae | Parapolybia varia | Fig. |
A total of five host species from three hawk moth genera (Lepidoptera, Sphingidae: Cechetra, Hippotion and Macroglossum) were listed in Table
A total of six hyperparasitoid wasps, including three new data from Taiwan, were listed in Table
Only one paper wasp species, Parapolybia varia (Fabricius, 1787) (Hymenoptera, Vespidae), was recognised as a predator (Table
The larva of this species was identified, based on
Newly recognised as a host of M. stellatus.
The larva of this species was identified, based on
Newly recognised as a host of M. stellatus.
The larva of this species was identified, based on
Known as a host of M. stellatus from Japan (
The larva of this species was identified, based on
Newly recognised as a host of M. stellatus.
Predation behaviour on the cocoon of M. stellatus by a single worker (Fig.
Although preserved specimens were unavailable and these paper wasps sometimes exhibit a wide range of colour variations (
This genus is known to be hyperparasitoids of other parasitoid wasps, including Meteorus species (
Preserved specimens were identified as belonging to this genus, based on the key provided by
Previous host data of M. stellatus suggested that its primary host consists of sphingid moth species of the genus Macroglossum (
The pendulous communal cocoons of M. stellatus are occasionally attacked by the social wasp predator, P. varia, intensively. According to
The suspension of the cocoon by a cable has been considered to make the pupating wasp inaccessible to certain potential enemies (
All data of M. stellatus observed in the present study were based on cocoons and the majority of it was recorded before being described as the new species. This suggests that their communal star-shaped cocoon suspended by a significantly long cable would have likely caught the interest of not only natural enemies, as suggested above, but also many citizen scientists. In contrast, relatively fewer data for adults from social media suggest that the small body size makes citizen scientists difficult to find them. In addition, the lack of uniqueness of adult morphology may not attract interest from citizen scientists. Therefore, social media posts are valuable for understanding biodiversity and natural history, but artificial biases should always be considered when we use such data.
One of the most interesting and important features of parasitoid wasps is their tremendous diversification through the evolution of interaction between the wasps and their hosts. As recently highlighted in Darwin wasps (
We would like to express thanks to Chun-Che Chien, Chean-Yueh Chang, Chun-Chung Su, Shu-Ping Yang, Jui-Chen Hsieh, Hua-Ting Cheng, Ching-Chang Hsu, Shuling Yang, Shu-Ling Lin, Hwei-Shan Lai, Tieh Hu, Chun-Chun Deng, Alu Lu and Sukenobu Konishi for providing the occurrence data of M. stellatus, its hosts and natural enemies; Chi-Feng Lee (TARI) for allowing us to examine and borrow the specimens; Shipher Wu (National Taiwan Museum, Taipei, Taiwan) and Hsiu-Chun Lee (Donghu Elementary School, Taipei, Taiwan) for identifying the host moth species; and Kota Sakagami for providing some ecological information of the host moth species and Atsuko Nakamine for investigating the specimens in KPM.
This study was partly supported by the JSPS KAKENHI Grant Number 19H00942 to KM.