Kamimuria anamensis (Banks) Sivec & Stark, 2008

Sivec, Ignac & Stark, Bill P., 2008, New Species Of Kamimuria Klapálek (Plecoptera: Perlidae) From Thailand And Vietnam, With Notes On Chinese Species, Illiesia 4 (12), pp. 110-138 : 111

Kamimuria anamensis (Banks) , n. comb.

( Figs. 66-69 )

Perla anamensis Banks, 1920:318 . Holotype ♀ (MCZ, 10,830), Anam (= Vietnam)

Material examined. Vietnam: Unknown site, 1 ♀ ( MCZ holotype 10830).

Adult habitus. Color pattern obscured due to specimen condition. Banks (1920) indicates a pale yellow habitus with black ocellar spot and brown thorax. Wings almost hyaline with yellow veins; legs pale with slender black apical marking on femora.

Male. Unknown.

Female. Forewing length about 25 mm. Subgenital plate more or less triangular with small median notch.

Egg. Outline oval with short wide collar, length ca. 0.32 mm, width ca. 0.28 mm. Chorion covered throughout with coarse pits ( Figs. 66-69 ), ca. 11 pit rows visible in lateral aspect with about 11 pits above micropyles and 6 pits below micropyles in a typical full row; pits in median field wider than long, appearing more or less linear. Pits have smooth floors except at collar end of every other pit row, a hexagonal pit with punctate floor is located. Micropylar row subequatorial, pits with smooth orifices which lack distinctive sperm guides.

Larva. Unknown.

Comments. Illies (1966) included Perla anamensis in the “Unsichere Arten” section of his catalogue and Sivec et al. (1988) indicate the existing data do not permit placement of this species at the generic level. However, our SEM study of eggs dissected from the holotype confirm this is another Kamimuria species. The female terminalia and color pattern of K. anamensis are quite similar to several other regional species, and the egg is similar to that of K. trang and others with a coarsely punctate chorionic reticulation, but the presence of finely punctate FCI floors in cells surrounding the collar ( Fig. 67 ) is otherwise unknown among Kamimuria species.

Figures

Figs. 66-69. SEM micrographs of eggs from holotype of K. anamensis. 66. Entire egg, 67. Collar and chorionic detail, 68. Anterior pole, 69. Chorionic detail.