Neoperla zonata, Stark & Sivec, 2008

Stark, Bill P. & Sivec, Ignac, 2008, New Species And Records Of Neoperla (Plecoptera: Perlidae) From Vietnam, Illiesia 4 (3), pp. 19-54 : 42-43

Neoperla zonata sp. n.

( Figs. 78‐81 )

Material examined. Holotype ♂ from Vietnam, Lao Cai, trickle along trail from Sapa to Muong Hoa Ho River , 11 May 1995, D. Currie, J. Swann, ROM 956037 ( ROM).

Adult habitus. Biocellate. Head almost entirely dark brown but paired pale spots located over tentoria anterolateral to ocelli and at M‐ line; clypeus and area adjacent to lappets pale ( Fig. 78 ). Pronotum brown with scattered, indistinct pale spots on disc. Wing membrane amber, veins brown except for costal margin. Hind femora banded with dark basal and apical bands; fore and mid femora and tibiae brown.

Male. Forewing length 10 mm. Process of tergum 7 rounded and spinulose around margin. Mesal sclerite of tergum 8 flat and bearing a few sensilla basiconica. Tergum 9 with sparse lateral sensilla patches on humps and a few scattered in mesal depression ( Fig. 79 ). Hemitergal processes long and slender.

Aedeagal tube plump and poorly sclerotized except on dorsum of basal half; apex of tube trilobed; lateral lobes sparsely armed with ca. 6 large spines on sides and with a cluster of smaller spines at tips ( Figs. 80‐ 81 ); mesal lobe unarmed. Aedeagal sac not completely everted but about equal to tube in length and armed sparsely with small spines.

Female. Unknown.

Larva. Unknown.

Etymology. The species name refers to the banding pattern on the hind femora.

Diagnosis. The aedeagus and external genitalia of this species is of the general type seen in N. taiwanica Sivec & Zwick but the lateral aedeagal lobes in that species are much smaller than those found in N. zonata ( Sivec & Zwick 1987) .

Figures

Figs. 78‐81. Neoperla zonata. 78. Head and pronotum, 79. Male terminalia, 80. Aedeagus, 81. Aedeagal sac, ventral.