Phanoperla vietnamensis Zwick. The 2010
Creators: name: Sivec, Ignac
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Phanoperla
Phanoperla vietnamensis

description: <i>Phanoperla vietnamensis</i> Zwick (Figs. 33-36) <i>Phanoperla vietnamensis</i> Zwick, 1986:151. Holotype &amp;male; (B.P. Bishop Museum). Kim Lien, Vietnam <b>Material examined.</b> Vietnam: Dac Lac, Yok Don National Park, Park Headquarters, ca. 2 km SE Ban Don, 31 May 1997, D.C. Darling, D. Currie, A. Guidotti, ROM 974019, 2&amp;male;, 5&amp;female; (ROM). Dong Nai, Cat Tien National Park, nr. Park Headquarters, 22 August 1998, B. Hubley, D. Currie, ROM 982002, 2&amp;male;, 1&amp;female; (ROM, IEBR). Same site, 23 August 1998, B. Hubley, D. Currie, ROM 982006, 4&amp;male; (ROM, BPS). Gia Lai, An Khe Dist., Tram Lap, Azun River, 21 June 1996, D. Currie, J. Swann, ROM 961076, 1&amp;male; (ROM). Same site, 23 June 1996, D. Currie, J. Swann, ROM 961084, 1&amp;male; (ROM). Same site, 17 June 1996, D. Currie, J. Swann, ROM 961056, 2&amp;male; (IEBR). Nam Cat Tien, 200 m, 17-25 June 1995, H. Malicky, 1&amp;male; (PMSL). Nghe An, W Con Cuong, Khe Moi Forestry Camp, 25-26 October 1994, D. Currie, ROM 946111, 1&amp;male; (ROM). <b>Remarks.</b> The new records are from sites in the central and southern regions of Vietnam, generally north of the Lam Dong site where a paratype was collected (Zwick 1986). The females are associated on the basis of occurrence together with males of <i>P. vietnamensis</i> at two sites and on the basis of slightly larger size for this species than for others found at Cat Tien National Park. <b>Female.</b> Forewing length 10-11 mm. Body pale, without distinctive dark pigment except on margins and median suture of pronotum. Subgenital plate lobes directed inward and apically narrowed; notch U-shaped (Fig. 36). Plate generally similar to that of <i>P. maindroni</i> (Navas) and <i>Phanoperla</i> sp. D (Zwick 1982) but the notch appears to be somewhat narrower and more rounded anteriorly than for either of these species. <b>Egg.</b> Length ca. 435 µm, equatorial width ca. 205 µm. Collar short and ca. 84 µm wide at rim; basal constriction ca. 74 µm wide diameter (Fig. 33). Chorion punctate over most of surface but smooth in a narrow equatorial ring (Fig. 35); chorionic pits absent in zone along ribs extending from collar (Fig. 34); pits deeper and more distinct on lid (Fig. 35). Micropyles appearing evenly spaced in specimens examined; orifices surrounded by smooth circular rims. The egg of <i>P. vietnamensis</i> is similar to that of <i>P. wedda</i> (Zwick 1982) but varies in lacking pits along the chorionic ribs associated with the collar.
description: Published as part of <i>Sivec, Ignac &amp; Stark, Bill P., 2010, Seven New Species Of Phanoperla Banks From Vietnam And Thailand (Plecoptera: Perlidae), pp. 98-112 in Illiesia 6 (10)</i> on page 109, DOI: 10.5281/zenodo.4759732
description: {"references": ["Zwick, P. 1986. Contribution to the knowledge of Phanoperla Banks, 1938 (Plecoptera: Perlidae). Bulletin de la Societe Entomologique Suisse, 59: 151 - 158.", "Zwick, P. 1982. A revision of the Oriental stonefly genus Phanoperla (Plecoptera: Perlidae). Systematic Entomology, 7: 87 - 126."]}