Kamimuria turbinata, 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 : 126

Kamimuria turbinata sp. n.

( Figs. 55-58 , 86-87 )

Material examined. Holotype ♂ and 4 ♀ paratypes from Thailand , Chiang Mai Province, Doi Inthanon National Park , Huai Sai Lueng, 98° 35’ E, 19° 23’ N, 1060 m, 20 March 2002, I. Sivec ( PMSL). Additional paratypes: Thailand: Chiang Mai Province, Doi Inthanon National Park, Huai Mae Pan Noi, 98° 25’ E, 18° 31’ N, 750 m, 3-4 April 2003, I. Sivec, 2 ♂, 1 ♀ ( PMSL). Unknown Province, Huey Nam Ru, 98° 35’ E, 19° 23’ N, 1400 m, 18 April 1989, 2 ♀ ( PMSL). Unknown Province, Ban Yang Bong, 19 March 1992, H. Malicky, 1 ♀ ( PMSL).

Adult habitus. General body color pale yellowbrown; head coloration uniform without distinctive pattern, except for dark rings around ocelli. Palpi pale, first antennal segment pale, 2 nd dark brown and rest of flagellum dark brown in basal half becoming pale beyond mid-point. Pronotum uniformly pale brown with slight relief from obscure rugosities. Femora pale except for narrow dark apical band; tibiae pale brown, tip of last tarsal segment dark brown ( Fig. 58 ).

Male. Forewing length 17 mm. Hemitergal lobes slender, curved slightly and finger-like ( Fig. 55 ); hemiterga with a few sensilla basiconica clustered at tip and additional ones scattered along dorsal margin. Tergum 9 with a large median patch of sensilla basiconica clustered from posterior margin to mid-point of tergum; median field of tergum 9 darker than lateral areas. Tergum 8 with a smaller median field of sensilla basiconica set near posterior margin. Aedeagus membranous, apex trilobed; triangular spines cover much of aedeagal surface particularly along ventroapical margin ( Fig. 57 ).

Female. Forewing length 32 mm. Subgenital plate a small mesal projection with slight median emargination or shallow notch. Plate covers less than a third of sternum 9 ( Fig. 56 ).

Egg. Inversely conical in shape with wide, short collar and pointed lid. Chorion coarsely pitted throughout; pits becoming slightly smaller below micropylar line; ca. 13 rows of pits in lateral aspect, ca. 6-7 pits per row above micropylar line, and ca. 6-7 pits per row below line. Collar with narrow rim, surrounded by small, pit-free zone ( Figs. 86-87 ).

Etymology. The species name refers to the inversely conical shape of the egg.

Diagnosis. This species is most easily distinguished by the inversely conical egg with chorionic punctations becoming somewhat smaller below the micropylar line. In hemitergal lobe features this species most closely resembles K. jariyae but these species differ in aedeagal shape ( Figs. 31 , 57 ) and in other characters (e.g. subgenital plate shape).

Figures

Figs. 55-58. Kamimuria turbinata adult structures. 55. Male terminalia, 56. Female terminalia, 57. Aedeagus, lateral, 58. Apex of femur and base of tibia.

Figs. 86-87. SEM micrographs of eggs of K. turbinata. 86. Collar and chorionic detail, 87. Anterior pole.

Figs. 28-32. Kamimuria jariyae adult structures. 28. Head and pronotum, 29. Male terminalia, 30. Female terminalia, 31. Aedeagus, lateral, 32. Femur.