Kamimuria digyracantha Du & Sun

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 : 65

Kamimuria digyracantha Du & Sun , sp. nov.

Figures 8–11

Type material. Holotype, male, China: Henan province, Xinyang city, Jigong Mt., 12 July 1997, 550 m, Leg. Wang Bei-Xin. Paratypes, 4 males, same data as holotype.

Diagnosis. This species is characterized by an aedeagal sac with two narrow bands of spines that encircle the dorsolateral surface.

Description. Adult habitus ( Fig. 8 ). General color yellow patterned with yellow-brown. Head almost entirely yellow but with a yellow-brown interocellar triangle open posteriorly; antennal base brown, pedicel and flagellum dark brown. Pronotum pale yellow-brown with scatterred obscure pale rugosities ( Fig. 9 ). Wings membrane pale, veins brown. Legs pale yellow-brown with narrow, dark band at apex of femora.

Male. Forewing length 15 mm. Presternum of metathorax with a small patch of hairs. Hemitergal lobes round, finger shaped and without sensilla basiconica at apex. Tergum 9 with a median large patch of sensilla basiconica; tergum 8 with a smaller patch of sensilla basiconica in mesal field ( Fig. 10 ). Hair brushes present on sterna 4–7. Remnant of epiproct consisting of a pair of sclerites and a median, membranous, hairy swelling. Aedeagal sac with two bands of spines that encircle dorsolateral surface; the distal band forming a convergent angle toward the basal band; distal lobe of sac naked ( Fig.11 ).

Female. Unknown.

Etymology. The name refers to aedeagal sac with two bands of small triangular spines encircling the ventrolateral surface. Latin “ di, - gyracantha ” means “two, band of spines”.

Remarks. This new species is similar to K. cheni Wu in the shape of the hemitergal lobes, but differs significantly both in aedeagal features, the latter species aedeagal sac expanded apically into a globose stucture, and new species aedeagal sac with a distal, naked lobe.

Figures

FIGURES 8 – 11. K. digyracantha Du & Sun, sp. nov: 8. Adult habitus. 9. Head and pronotum. 10. Male terminalia. 11. Aedeagus, lateral view.