Kamimuria microda Du, 2002

Zeng, Liang-Liang, Huo, Qing-Bo & Du, Yu-Zhou, 2024, A new species of the genus Kamimuria (Plecoptera, Perlidae) from Jiangsu, China with re-description of K. microda Du, 2002, Biodiversity Data Journal 12, pp. e 137424-e 137424 : e137424-

Kamimuria microda Du, 2002

Kamimuria microda Du, 2002 in Li & Jin (2002: 112, 116). China: Guizhou: Maolan, Sanchahe.

Kamimuria microda Du, 2002 in Stark & Sivec (2013: 117).

Kamimuria microda Du, 2002 in Yang & Li (2018: 31).

Materials

Type status: Holotype. Occurrence: recordedBy: Yu-Zhou Du; individualCount: 1; sex: male; lifeStage: adult; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Plecoptera ; family: Perlidae ; genus: Kamimuria ; Location: country: China; stateProvince: Guizhou Province; county: Libo; locality: Maolan National Nature Reserve, Sancha River ; Identification: identifiedBy: Yu-Zhou Du; Event: year: 1994; month: 7; day: 8; Record Level: institutionID: ICYZU

Type status: Paratype. Occurrence: recordedBy: Yu-Zhou Du; individualCount: 4; sex: male; lifeStage: adult; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Plecoptera ; family: Perlidae ; genus: Kamimuria ; Location: country: China; stateProvince: Guizhou Province; county: Libo; locality: Maolan National Nature Reserve, Sancha River ; Identification: identifiedBy: Yu-Zhou Du; Event: year: 1994; month: 7; day: 8–12; Record Level: institutionID: ICYZU

Description

Male habits: General colour yellow brown in aged specimens (Fig. 3 A). The head is pale yellow with three ocelli, ocellar patch dark brown. The pronotum is nearly horizontally rectangular, with the front angles bluntly pointed and the rear angles rounded, with a rough surface. Abdominal segments and cerci pale brown.

Tergum 1–8 unmodified. Tergum 8 sometimes features a few sensilla basiconica in its central region, Tergum 9 has sensilla basiconica extending up to 1 / 3 of the anterior margin (Fig. 3 B). The inner surface of the hemitergal lobe is flat, extending to 1 / 3 of the way to the anterior margin of Tergum 10.

The base of the penis is bulbous (Fig. 4 ), tapering anteriorly into a neck-like structure. There are sclerotised patches on the ventral surface of the penis base near its anterior-middle portion and the narrowed distal end of it has numerous very small spines. The endophallus is short sac-like, with small spines densely covering its dorsal and lateral surfaces. There is a pair of sclerites on the ventral surface of the endophallus, with small tooth-like structures on the outer side of the sclerites.

Female, egg and nymph: Unknown.

Taxon discussion

Due to being preserved in alcohol for nearly 22 years, many features of the type materials have become less distinct. Additionally, original illustrations of the penis of this species are somewhat blurred, posing challenges to identification work. To address this challenge, we photographed the adult male penis from the paratypes, which was in a better preservation condition. These clear images will provide crucial references for further identification work.

Figures

Figure 3. Kamimuria microda Du, 2002 (paratype, male). A head and pronotum, dorsal view; B terminalia, dorsal view.

Figure 4. Kamimuria microda Du, 2002 (paratype, male). A penis, dorsal view; B penis, lateral view; C penis, ventral view.