Isoperla quinquepunctata , Yuba R., Yuba Co., CA &amp; Nehalem R., Clatsop Co., OR
Creators: name: Sandberg, John B.
name: Kondratieff, Boris C.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlodidae
Isoperla
Isoperla quinquepunctata

description: <i>Isoperla quinquepunctata</i> (Banks) (Figs. 12 a-d) <i>Chloroperla 5-punctata</i> Banks 1902. Holotype &amp;female;, New Mexico, Las Vegas, Gallinas River. <i>Isoperla patricia</i> Frison 1942. Holotype &amp;male;, South Dakota, Lawrence County, Spearfish River, Spearfish. <b>Male</b>. Aedeagus: sclerotized posterior process absent; body of aedeagus with a small posteromedian lobe covered with minute spinulae, one posteroapical lobe, one dorsal lobe, and an anterior lobe (Fig. 12a). Posterolateral margin of ninth and tenth terga with patches of long stout setae, fewer and smaller on tergum ten (Fig. 12c). Posterolateral margins of at least abdominal segment 8 with scale-like setae clustered in brushes of several setae. Paraprocts: curved dorsally, length if straightened subequal to combined first and second cercal segments, tapering gradually to blunt apices (Fig. 12c). Vesicle: rounded lobe, widest at base with broadly rounded apical margin (Fig. 12d), sometimes appears constricted along inner sclerotized lateral margins with wider and broadly rounded membranous outer lateral margins. The live everted aedeagus agrees generally with the previous description (Szczytko &amp; Stewart 1979, fig. 36). In this study, the small lobe A is covered with minute spinulae (Fig. 12a) vs. devoid of spinulae (Szczytko &amp; Stewart 1979, fig. 36 D), and a truncated dorsal lobe C is present (Fig. 12a) vs. absent in Szczytko &amp; Stewart (1979, fig. 36). <i>Isoperla quinquepunctata</i>, a geographically widespread western Nearctic species (Szczytko &amp; Stewart 1979) is most similar to <i>I. acula</i> and <i>I. mormona</i> (Table 1). See comments under <i>I. acula</i>. <b>Additional Material Examined.</b> OREGON, Grant Co., Silvies River, Hwy 395, 0.6 mi (0.9 km) S Seneca, 44.12529°N, 118.97443°W, 21/ V /2013, J.B. Sandberg, B.C. Kondratieff, 6&amp;male;, 3&amp;female; (JBSC); Harney Co., Trout Creek, Whitehorse Ranch Rd 18 mi (28.9 km) SE Fields, 42.17439°N, 118.43199°W, 21/ V /2013, J.B. Sandberg, B.C. Kondratieff, larvae (JBSC); Klamath Co., Sprague River, Hwy 140 unnamed access 4.74 mi (7.6 km) E Beatty, 42.44096°N, 121.18719°W, 19- 20/ V /2013, J.B. Sandberg, B.C. Kondratieff, 2&amp;female; (JBSC); Lake Co., Crooked Creek, Hwy 395 at Chandler State Park 17 mi (27.3 km) N Lakeview, 42.41125°N, 120.29129°W, 20/ V /2013, J.B. Sandberg, B.C. Kondratieff, 4&amp;male;, 3&amp;female; (JBSC).
description: Published as part of <i>Sandberg, John B. &amp; Kondratieff, Boris C., 2013, The Isoperla Of California (Plecoptera: Perlodidae); Updated Male Descriptions And Adult Keys For 18 Western Nearctic Species, pp. 34-64 in Illiesia 9 (5)</i> on page 53, DOI: 10.5281/zenodo.4760870
description: {"references": ["Banks, N. 1902. Notes and descriptions of Perlidae. The Canadian Entomologist, 34: 123 - 125.", "Frison, T. H. 1942. Studies of North American Plecoptera with special reference to the fauna of Illinois. Bulletin of the Illinois Natural History Survey, 22: 235 - 355.", "Szczytko, S. W. &amp; K. W. Stewart. 1979. The genus Isoperla (Plecoptera) of western North America; Holomorphology and systematics, and a new stonefly genus Cascadoperla. Memoirs of the American Entomological Society, 32: 1 - 120."]}