Rhysipolis taiwanicus
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Ordo: Hymenoptera
Familia: Braconidae
Genus: Rhysipolis
Name
Rhysipolis taiwanicus Belokobylskij, 1988 – Wikispecies link – Pensoft Profile
Notes
Rhysipolis taiwanicus Belokobylskij is a rarely collected species known from Taiwan and Vietnam (Belokobylskij 1988[1]; Long and Belokobylskij 2004[2]). It can be easily differentiated from similar species by the small stemmaticum and ocelli, the glabrous middle lobe of the mesoscutum, the strongly receding temples behind the eyes and the subglobular head (Zhang et al. 2016[3]). The stemmaticum is situated comparatively close to the antennal sockets (Fig. 15). The body length of the imagines is 3.2–4.0 mm (Belokobylskij 1988[1]; this paper) and are slender with long straight antennae when alive but the antennae are curled up after death (Figs 10–12) as in most Rhysipolinae.
Biology
The bright yellow cocoons were on the upper side of the leaf and appeared to naked eyes as little fried eggs (Fig. 1). At closer look, they resembled elongated trampolines fixed to a leaf by silken threads (Figs 2–5). All cocoons were found at the distal part of the leaf (Fig. 1) and the average size was 5.67 ±0.63 mm long (Fig. 6). The wasps inside the cocoons were showing obvious movement (Figs 3–5) before hatching simultaneously 13 days after the collecting of the leaves. Checking for small lepidopterans occurring on Rhaphiolepis indica seems to be the best possible tactic to discover the unknown host of Rhysipolis taiwanicus. Rhaphiolepis indica is one of the most common shrubs on hillsides in Hong Kong. So far seven species of caterpillars are known to feed on this plant (Table 1). Given the recorded hosts of Rhysipolis species are mainly leaf-mining microlepidopterans belonging to the Gracillariidae and to a much lower degree to Gelechiidae, Psychidae and Pyralidae (Yu et al. 2016[4]; Zhang et al. 2016[3]), it may worth to have a close look at Dichomeris ochthophora Meyrick, 1936 (Li et al. 2010[5]) in due course to investigate if it could be the unknown host of Rhysipolis taiwanicus Belokobylskij. A second choice would be Chalioides kondonis Kondo, 1922.
| Species | Family: Subfamily | Reference |
|---|---|---|
| Caeneressa diaphana (Kollar, 1848) | Erebidae: Arctiinae | Personal record of junior author |
| Chalioides kondonis Kondo, 1922 | Psychidae: Psychinae | Personal record of junior author |
| Delias pasithoe pasithoe (L., 1767) | Pieridae: Pierinae | Personal record of junior author |
| Dichomeris ochthophora Meyrick, 1936 | Gelechiidae: Dichomeridinae | Li et al. 2010[5]. Host plant was cited as Rhaphiolepis umbellata (Thunb.) Makino which is a synonym of Rhaphiolepis indica (L.) Lindl. |
| Nygmia plana (Walker, 1855) | Erebidae: Lymantriinae | Personal record of junior author |
| Remelana jangala mudra (Fruhstorfer, 1907) | Lycaenidae: Theclinae | Personal record of junior author |
| Zeuzera coffeae Nietner, 1861 | Cossidae: Zeuzerinae | Pun and Batalha 1997[6] |
Taxon Treatment
- van Achterberg, C; Lau, C; 2022: Biological notes on Rhysipolis taiwanicus Belokobylskij (Hymenoptera, Braconidae, Rhysipolinae) Journal of Hymenoptera Research, 93: 81-87. doi
Images
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Other References
- ↑ 1.0 1.1 Belokobylskij S (1988) Braconids of the supertribe Exothecidii (Hymenoptera, Braconidae, Doryctinae) of Taiwan. Trudy Zoologicheskogo Instituta.Leningrad175: 3–37. [in Russian]
- ↑ Long K, Belokobylskij S (2004) A preliminary list of the Braconidae (Hymenoptera) of Vietnam.Russian Entomological Journal12(4): 385–398. [December 2003]
- ↑ 3.0 3.1 Zhang Y, Xiong Z, van Achterberg K, Li T (2016) A key to the East Palaearctic and Oriental species of the genus Rhysipolis Foerster, and the first host records of Rhysipolis longicaudatus Belokobylskij (Hymenoptera: Braconidae: Rhysipolinae). Biodiversity Data Journal 4: e7944. https://doi.org/10.3897/BDJ.4.e7944
- ↑ Yu D, van Achterberg C, Horstmann K (2016) World Ichneumonoidea 2015. Database on flash-drive. www.taxapad.com, Nepean, Ontario, Canada.
- ↑ 5.0 5.1 Li H, Zhen H, Kendrick R, Sterling M (2010) Microlepidoptera of Hong Kong: Taxonomic study on the genus Dichomeris Hübner, 1818, with descriptions of three new species (Lepidoptera: Gelechiidae).SHILAP Revista de Lepidopterología38(149): 67–89.
- ↑ Pun W, Batalha C (1997) Manual de insectos de Macau.Camara Municipal das Ilhas, Coloane, 125 pp. [in Chinese and Portuguese]
