Neoperla mnong Stark, 1987

Zeng, Liang-Liang, Huo, Qing-Bo & Du, Yu-Zhou, 2024, Redescription of two species of Neoperla Needham, 1905 (Plecoptera, Perlidae) and new distribution records of Neoperla mnong Stark, 1987 in China, Biodiversity Data Journal 12, pp. e 127089-e 127089 : e127089-

Neoperla mnong Stark, 1987

Javanita costalis Navás, 1932: 925. Secondary homonym of Formosina costalis Klapálek ( Zwick 1988)

Neoperla mnong Stark, 1987: 48. Holotype ♂ (California Academy of Sciences). Di Linh, Vietnam

Neoperla angustilobata Zwick, 1988: 404. Holotype ♀ (Muséum National d’Histoire Naturelle), New Synonymy

Materials

Type status: Other material. Occurrence: recordedBy: Du Yu-Zhou; individualCount: 1; sex: 1 male; lifeStage: adult; occurrenceID: C53BD24C-67C4-52EC-B0BA-9AE9AAFEE10D; Taxon: scientificName: Neoperla mnong Stark, 1987 ; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Plecoptera ; family: Perlidae ; genus: Neoperla ; Location: country: China; stateProvince: Guizhou Province; county: Leishan; locality: Danjiang Village ; Identification: identifiedBy: Du Yu-Zhou, Huo Qing-Bo, Zeng Liang-Liang; Event: year: 2005; month: 6; day: 4; Record Level: language: en; institutionCode: ICYZU

Type status: Other material. Occurrence: recordedBy: Zeng Liang-Liang; individualCount: 3; sex: 3 males; lifeStage: adult; occurrenceID: 63B63C98-FCD6-58E1-A968-2733B2D92A93; Taxon: scientificName: Neoperla mnong Stark, 1987 ; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Plecoptera ; family: Perlidae ; genus: Neoperla ; Location: country: China; stateProvince: Guangdong Province; county: Shixing; locality: Chebaling National Nature Reserve ; Identification: identifiedBy: Du Yu-Zhou, Huo Qing-Bo, Zeng Liang-Liang; Event: year: 2020; month: 8; day: 23; Record Level: language: en; institutionCode: ICYZU

Type status: Other material. Occurrence: recordedBy: Zeng Liang-Liang; individualCount: 2; sex: 2 males; lifeStage: adult; occurrenceID: 2820260E-0D2A-58EC-9D74-D8D11700AF60; Taxon: scientificName: Neoperla mnong Stark, 1987 ; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Plecoptera ; family: Perlidae ; genus: Neoperla ; Location: country: China; stateProvince: Jiangxi Province; county: Longnan; locality: Jiulianshan National Nature Reserve ; Identification: identifiedBy: Du Yu-Zhou, Huo Qing-Bo, Zeng Liang-Liang; Event: year: 2020; month: 7; day: 7-2; Record Level: language: en; institutionCode: ICYZU

Type status: Other material. Occurrence: recordedBy: Zeng Liang-Liang; individualCount: 2; sex: 2 males; lifeStage: adult; occurrenceID: B39AD1D6-AFDC-57A3-8EE3-E16F30D86640; Taxon: scientificName: Neoperla mnong Stark, 1987 ; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Plecoptera ; family: Perlidae ; genus: Neoperla ; Location: country: China; stateProvince: Hunan Province; county: Huitong; locality: Yingzuijie National Nature Reserve ; Identification: identifiedBy: Du Yu-Zhou, Huo Qing-Bo, Zeng Liang-Liang; Event: year: 2023; month: 7; day: 14; Record Level: language: en; institutionCode: ICYZU

Distribution

China (Guizhou, Hunan, Jiangxi, Guangdong, Guangxi); Vietnam; Thailand.

Taxon discussion

Stark and Sivec (2008) mentioned that N. mnong was first described as Javanita costalis ( Navas 1932) from a female specimen and later described as a new species from a male specimen ( Stark 1987). Due to their similar penis, N. mnong , N. han Stark, 1987 , N. furcostyla Li & Qin, 2013 , N. forcipata Yang and Yang, 1992 and N. yao Stark, 1987 were classified into the diehli subgroup ( Wang et al. 2013). Subsequently, these species were assigned to the N. (Formosita) diehli complex (group) ( Zwick 2023). It needs to be corrected as the penis of N. mnong was misidentified as N. dao Stark & Sivec, 2008 in Zwick (2023), on page 116, figure 67. The diehli complex (group) is primarily distributed in low-latitude regions of East Asia to South Asia, including southern China (Guangdong, Guangxi, Yunnan, Hainan etc.) to areas spanning Vietnam, Thailand and Indonesia.

This article records for the first time the distribution of this species in Guizhou, Hunan and Jiangxi Provinces of China, covering most of the southern region of China to Vietnam, indicating that it is a species that is widely distributed in coastal areas of Southeast Asia (Fig. 6 ). In China, this species is primarily concentrated in the Nanling Mountains, but records from Guizhou and Hunan suggest that it may also occur in adjacent inland provinces to the west (or north) of the Nanling Mountains. In the future, more widespread species or new distribution records of the diehli complex (group) may be reported. We provide additional illustrations (Figs 7 , 8 ) to aid in the recognition of this species.

Figures

Figure 6. The distribution of Neoperla mnong Stark, 1987. The white squares indicate the collection places. China: 1. Hunan, Huitong; 2. Guizhou, Leishan; 3. Jiangxi, Longnan; 4. Guangdong, Shixing; 5. Guangxi, Jinxiu; 6. Guangdong, Conghua; Vietnam: 7. Con Cuong; 8. Pleiku; 9. An Khe; 10. Dak Son; 11. Di Linh; 12. Thailand, Chanthaburia.

Figure 7. Neoperla mnong Stark, 1987, male. A head and pronotum, dorsal view; B abdomen, dorsal view.

Figure 8. Neoperla mnong Stark, 1987, male. A penis with partly everted endophallus, lateral view; B penis base and everted endophallus, lateral view.