Leuctra maria Hanson 1941
Creators: name: Grubbs, Scott A.
name: Wei, Summer
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Leuctridae
Leuctra
Leuctra maria

description: <i>Leuctra maria</i> Hanson, 1941 Northeastern Needlefly http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org: TaxonName:462458 (Figs. 27–32, 34) <i>Leuctra maria</i> Hanson 1941:175. Holotype &amp;male; (USNM), Barrington (Stratford Co.), New Hampshire <i>Leuctra maria</i> Ricker, 1952:169. (correct description of female) <i>Leuctra maria</i> Illies, 1966:98. <i>Leuctra maria</i> Zwick, 1973:403. <i>Leuctra maria</i> Hitchcock, 1974:77. <b>Male.</b> The dorsal abdominal process of the 8 th abdominal tergum emanates anteriorly, extending ca. ½ length of the segment and terminates on the posterior margin as a raised, bilobed process with small, distally rounded lobes (Fig. 30); the distance between the lobes is consistently ca. equal to lobe width (Fig. 30). The 7 th abdominal tergum lacks dorsal processes, bearing only a thin, unraised sclerotized band anteriorly. The specilla are very broad basally and medially in lateral view, tapering distally to an acute apex (Fig. 27); the dorsal margin is essentially straight (Fig. 27); in caudal view the specilla bear prominent troughs from near the base to the tips, giving a distinct concave appearance (Figs. 28–29); the medial margin of the trough has low, tooth-like tubercles present along the distal &amp;frac13; (Figs. 28–29). The subanal lobes are broadest basally, slightly recurved anteriorly in distal ½, and subequal in length to the specilla (Figs. 27–28). The vesicle base is short, body expanded medially and ovoid in shape, and entire surface covered in long, socketed bristles (Fig. 31). <b>Female.</b> The 8 th abdominal sternum bears a broadlyrounded medial tubercle on the anterior ½ that occupies the medial ca. ½ of the segment (Fig. 32). The subgenital plate terminates in large, broadly rounded or subtriangular lobes separated by a vshaped notch (Fig. 32). <b>Distribution.</b> Canada: ON, PQ. USA: CT, ME, NH, NY, PA, VT, WV (DeWalt et al. 2017).
description: Published as part of <i>Grubbs, Scott A. &amp; Wei, Summer, 2017, Morphological Systematics Of Leuctra Duplicata Claassen, 1923 Species Group (Plecoptera: Leuctridae), pp. 59-69 in Illiesia 13 (5)</i> on pages 63-65, DOI: 10.5281/zenodo.4761111
description: {"references": ["Ricker, W. E. 1952. Systematic studies in Plecoptera. Indiana University Publications, Science Series, 18: 1 - 200. http: // www. nativefishlab. net / library / textpdf / 16", "Illies, J. 1966. Katalog der rezenten Plecoptera. Das Tierreich No. 82. Walter de Gruyter and Company, Berlin.", "Zwick, P. 1973. Insecta: Plecoptera, Phylogenetisches System und Katalog. Das Tierreich No. 94. Walter de Gruyter and Company, Berlin.", "Hitchcock, S. W. 1974. Guide to the insects of Connecticut. Part VII. The Plecoptera or stoneflies of Connecticut. Bulletin of the State Geological and Natural History Survey of Connecticut, 107: 1 - 262.", "DeWalt, R. E., M. D. Maehr, U. Neu-Becker &amp; G. Stueber. 2017. Plecoptera Species File Online. Version 5.0 / 5.0. Accessed 20 August 2017. http: // Plecoptera. SpeciesFile. org"]}