Kamimuria cheni Wu, 1948

Sun, Hai-Tao & Du, Yu-Zhou, 2012, Two new species of the genus Kamimuria (Plecoptera: Perlidae) from China, with redescription of Kamimuria cheni Wu and Kamimuria Chungnanshana Wu, Zootaxa 3455, pp. 61-68 : 61-62

Kamimuria cheni Wu, 1948

Figures1–4

Kamimuria cheni Wu, 1948: 266 ; Wu, 1973, 98; Zwick, P. 1977: 85 –134; Zhao Xiufu, 1982: 32; Du, 1999: 60; Sivec & Stark, 2008:137

Perla cheni (Wu) , Illies, 1966: 288.

Type material (lost). Holotype, male, China: Guangxi province, Jinxiu county, Dayao mountain.

Examined specimens. 4 male, Guangxi province, Jinxiu county, Dayao mountain, 4 May 1994, Leg. DuYu- Zhou. Sichuan province, Guan county, 29 May 1939, 1 male, Leg. ZhouYao. Shaanxi province, Zhouzhi county and Mei county, 8 males and 5 females, Leg. Unknown.

Description. Adult habitus ( Fig 1 ). General color pale brown to brown; head light brown, ocellar triangle dark brown. Antennae and palpi dark brown. Pronutum brown, surface with very faint rugosities ( Fig. 2 ).

Male. Forewing length 15–16mm. Presternum of metathorax with a small patch of hairs. Hemitergal lobes finger-like, the tips of which nearly reaching the posterior margin of the tergum 9. Tergum 9 with a median patch of sensilla basiconica, tergum 8 with only 5–6 small sensilla basiconica in a sparse mesal patch ( Fig. 3 ). Aedeagus membranous, more or less cylindrical but expanded in distal third, sac armature consists of a large triangular patch of spines at apex, and with a patch of microtrichia at apical third, which encircles dorsolateral area but is interrupted ventrally ( Fig. 4 ).

Remarks. Wu (1962) indicated the holotype male of Kamimuria cheni in the Yeching University collection was destroyed during the war years. Sivec and Stark (2008) listed K. cheni as a nomen dubium, because the type was lost. However, Du had collected specimens of K. cheni from the type locality. Additionally, other specimens of K. cheni were identified by Wu, from “Sichuan province, Guan county, 29 May 1939, 1 male, Leg. Zhou Yao and from Shaanxi province, Zhouzhi county and Mei county, 8 males and 5 females, Leg. Unknown”, and Wu (1973) listed this new distribution. These specimens are deposited in the Zoological Museum, Institute of Zoology, Chinese Academy of Science. Du identified 4 male specimens from the type locality; these specimens are in close agreement with Wu’s description, particularly in his reference to “the (hemitergal) tips of which not reaching to the posterior margin of the 9th tergite. The redescription and illustrations presented herein will enhance our knowledge of the species and allow others to confidently identify this species in the future. The Du specimens are deposited in the Insect Collection of Yangzhou University now.

Figures

FIGURES 1 – 4. K. cheni Wu: 1. Adult habitus. 2. Head and pronotum. 3. Male terminalia. 4. Aedeagus, lateral view.