Adult habitus. General color pale yellow brown. Head pale without distinct marking except dark stem suture behind ocelli (Fig. 13); basal eight antennal segments pale brown, rest darker; palpi pale brown. Pronotum pale brown with slightly darker rugosities; margins almost completely ringed with narrow, dark suture lines. Wings pale amber, veins slightly darker; Rs with two branches. Femora pale, tibiae and tarsi slightly darker. Male. Forewing length 8 mm. Tergum 9 bearing three narrowly separated sensilla basiconica patches; posterior margin produced as a narrow, truncate mesal lobe. Hemitergal lobes rather broad at base and more or less triangular in outline (Fig. 14). Aedeagal tube sclerite narrow, outline of sclerite a slender, prolonged rhomboid; sac shorter than tube and armed with lateral groups of 6 or 7 large, black spines in fan shaped clusters on either side of apical cylindrical lobe (Figs. 15 ‐ 16); surface of apical cylinder very densely armed with black, scale‐ like spines; ventroapical tube surface armed with large patch of minute spinules. Female. Forewing length 10 mm. Subgenital plate slightly produced over base of sternum 9 and notched; midpoint of notch bearing a small projection (Fig. 17). Posterior intersegmental membrane of sternum 9 with microtrichia patch. Egg. Length ca. 0.31 mm, equatorial width ca. 0.18 mm. Collar short, wide with slightly flanged rim; collar width ca. 0.07 mm. Anchor mushroom shaped with marginal row of globular bodies on short lobes (Figs. 10 ‐ 11). Chorionic surface with inconspicuous striations extending from collar rim, area between striae divided into irregular, more or less rhomboid cells with punctate floors; ca. eight striae visible in lateral aspect. Equatorial zone with a narrow belt of larger punctations; lid coarsely punctate with groups of 3 ‐ 5 pits per cluster, each cluster associated with an irregular serpentine ridge (Fig. 12). Larva. Unknown.
Sumber: Studies Of Indonesian Perlidae (Plecoptera), With Descriptions Of Three New Species