Anacroneuria barinas Stark &amp; Zúñiga 2014, sp. n.
Creators: name: Stark, Bill P.
name: Zúñiga, Maria del Carmen
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Anacroneuria
Anacroneuria barinas

description: <i>Anacroneuria barinas</i> sp. n. (Figs. 1-5, 21) <b>Material examined.</b> Holotype &amp;male;, <b>Venezuela</b>, Barinas State, 15 km W Altamira de Caceras, 1000 m, 30 December 1985, P. Kevarik, R. Jones (USNM). Paratype: <b>Venezuela</b>: Barinas State, 10 km southeast of Miri, 8 February 1970, 150 m, S.L. Wood, 1&amp;male; (BYUC). <b>Adult habitus.</b> General color brown with yellow to yellow-brown markings. Lappets dark brown, frons yellow-brown with slightly darker, diffuse-brown area forward of ocelli (Fig. 1). Pronotum brown over much of disc, but pale laterally and along median suture. Wings pale amber with darker veins; C and Sc pale amber. Dorsum of legs brown, but pale along ventral margins. <b>Male.</b> Forewing length 9-10 mm. Hammer thimble shaped, height greater than apical diameter (Fig. 2). Aedeagal apex truncate, slightly emarginate, simple, but bearing a ventral pair of small membranous lobes (Fig. 3), and a distinctive pair of dorsal keel lines which meet at midlength and curve outward nearer apex, approximating a Y-shape (Fig. 5). Dorsolateral margins along keel lines slant steeply to ventrolateral base, and apices of keel lines extend to midlength of apex in lateral aspect (Fig. 4) and form a slight marginal incision in subapical profile. Hooks subchelate (Fig. 3); apex of right hook of holotype (in ventral aspect) broken. <b>Female.</b> Unknown. <b>Larva.</b> Unknown. <b>Etymology.</b> The species name, used as a noun in apposition, is based on the Venezuelan state in which the holotype was collected. <b>Diagnosis.</b> The dorsal keel of the new species is almost identical to that of <i>A. toni</i> Zúñiga &amp; Stark 2002, but the aedeagus of that species has a slight subapical constriction causing the truncate apex to be wider than the subapical area. In <i>A. barinas</i>, the lateral subapical aedeagal margins narrow to a slightly emarginate apex (Figs. 3-5). <b>Comments.</b> One of us (BPS) first studied the specimen now designated as holotype from the Monte L. Bean Life Science Museum, Brigham Young University, in 1998, and labelled it “ <i>Anacroneuria</i> n. sp. ” Recently, it was returned for additional study through the courtesy of R.W. Baumann, and a second specimen, collected by S.L. Wood from a nearby site was also included. Both sites are located in the Cordillera de Mérida, the highest mountain range in the Venezuelan Andes. The species is a member of the <i>A. aymara</i> complex (Maldonado et al. 2002; Zúñiga &amp; Stark 2002; Zúñiga et al. 2006; Stark et al. 2012), which currently includes the species listed in Table 1. Distributions (by Department, Province or State) for these 12 species are shown in Figs. 20-23. The key below will assist in recognition of male specimens assigned to this complex.
description: Published as part of <i>Stark, Bill P. &amp; Zúñiga, Maria del Carmen, 2014, New Species And Records Of Colombian, Ecuadorian And Venezuelan Anacroneuria (Plecoptera: Perlidae), With A Review Of The Anacroneuria Aymara Stark &amp; Sivec Complex, pp. 66-79 in Illiesia 10 (8)</i> on pages 68-70, DOI: 10.5281/zenodo.4752749
description: {"references": ["Zuniga, M. del C. &amp; B. P. Stark. 2002. New species and records of Colombian Anacroneuria (Insecta, Plecoptera, Perlidae). Spixiana, 25: 209 - 224.", "Maldonado, V., B. P. Stark, &amp; C. Cressa. 2002. Descriptions and records of Anacroneuria from Venezuela (Plecoptera: Perlidae). Aquatic Insects, 24: 219 - 236.", "Zuniga, M. del C., B. P. Stark, J. J. Vasconez, F. Bersosa, &amp; L. D. Vimos. 2006. Colombian and Ecuadorian Anacroneuria (Plecoptera: Perlidae): seven new species, records and life stages. Studies on Neotropical Fauna and Environment, 41: 45 - 57.", "Stark, B. P., B. C. Kondratieff, &amp; B. Gill. 2012. New species and records of Anacroneuria (Plecoptera: Perlidae) from Ecuador and Paraguay. Illiesia, 8: 78 - 93."]}