Hemacroneuria violacea Enderlein, 1909

Stark, Bill P. & Sivec, Ignac, 2008, Systematic Notes On Kiotina Klapálek And Hemacroneuria Enderlein (Plecoptera: Perlidae), With Description Of Four New Species, Illiesia 4 (17), pp. 161-175 : 174

Hemacroneuria violacea Enderlein

( Figs. 51–53 )

Hemacroneuria violacea Enderlein, 1909:395 .

Lectotype ♂ ( Polish Academy of Sciences , Warsaw). Manson- Gebirge, Tonkin ( Vietnam)

Kiotina violacea: Klapálek, 1916:60 .

Acroneuria violacea: Zwick, 1973b:491 .

Material examined. Vietnam: Lao Cai Province, ca. 5

km southeast Sapa village , 1500 m, 26 May-3 June 1999, A. Lathrop, ROM 992022, 1 ♂ (pinned, ROM). Adult habitus. Triocellate, anterior ocellus minute. General color black, head and pronotum essentially entirely dark. Legs, tarsi and antennae black; wings dark except costal area pale to cord .

Male. Forewing length 17-20 mm. Tergum 10 bearing a pair of low posterolateral knobs and tergum almost divided by hairless, poorly sclerotized median band ( Fig. 51 ); tergum 10 without sensilla basiconica but numerous short setae occur in field between knobs. Paraprocts triangular, curved forward over abdominal apex and tips darkened and pointed apically ( Fig. 52 ); paraproct length slightly greater than width. Hammer small with anterior edge wider than posterior edge appearing somewhat triangular ( Fig. 53 ). Aedeagus damaged but much of surface covered with variably shaped microtrichia ranging from triangular scales to minute pegs or linear ridges.

Female. Zwick (1973b) shows the subgenital plate as reaching beyond the tip of sternum 9.

Larva. Unknown.

Figures

Figs. 51-53. Hemacroneuria violacea structures. 51. Male terminalia, dorsal, 52. Male paraproct, caudal aspect, 53. Male sternum 9.