Perlesta mihucorum Kondratieff &amp; Myers 2011, sp. n.
Creators: name: Kondratieff, Boris C.
name: Myers, Luke W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Perlesta
Perlesta mihucorum

description: <i>Perlesta mihucorum</i> sp. n. (Figs. 1-14). <b>Material examined.</b> Holotype &amp;male;, NEW YORK, Columbia Co., Claverack Creek, Rte. 66, near Hudson, 42.2594N, 73.7534W, 27 June 2011, L. Myers. Paratypes: NEW YORK: Columbia Co., Claverack Creek, Rte. 66, near Hudson, 42.2594N, 73.7534W, 24 June 2007, L. Myers &amp; B. Kondratieff, 1&amp;male;, 1&amp;female;; Taghkanic Creek, Stone Mill Rd., off Rte. 23B, 42.1917N, 73.7555’W, 18 June 2008, L. Myers, 1&amp;male;, 1&amp;female;; same data as Holotype, 8&amp;male;, 17&amp;female;; Greene Co., Hannacroix Creek, Rte. 9W, South Ravena, 42.4401N, 73.8137W, 19 June 2008, L. W. Myers, 15&amp;male;, 11&amp;female;; same data but 27 June 2011, L. and J. Myers, 16&amp;male;, 7&amp;female;; Hamilton Co., Sacandaga River, Rte. 30, near Hope, 43.2866N, 74.2347W, 25 June 2007, L. Myers &amp; B. Kondratieff, 1&amp;male;; Herkimer Co., South Branch Moose River, Rte. 28, near county line, 43.6113N, 75.1032W, 28 June 2007, L. Myers &amp; B. Kondratieff, 1&amp;male;, 1&amp;female;. <b>Male.</b> Forewing length 10-11 mm. General body color light yellow brown. Head yellow except for brown quadrangular area over ocelli and brown triangular area forward of median ocellus, prothorax brown with pale band along median suture (Figs. 1-2). Wings amber with yellow intercostal area, more apparent in life, veins brown (Fig. 1). Femora and tibia brown dorsally (Fig. 1). Tergum 10 mesal sclerite light brown, not divided, sensilla basiconica sparse (Fig. 3). Paraproct moderately long, with well-developed subapical tooth inconspicuous in lateral view (Figs. 4), in caudal view long, rounded apically (Fig. 5). Penis tube + sac long, caecum small wider than long, lateral sclerite weakly developed (Fig. 6), dorsal patch broad basally, with a thin thread of 2-3 rows of spinulae extending the length of the sac (Fig. 7). <b>Female.</b> Forewing length 12-14 mm. General body color lighter than male, wings not as tinted with amber. Subgenital plate, short, with large semiquadrate shaped lobes separated by deep wide Vshaped notch (Fig. 8). <b>Egg.</b> Oval. Collar stalked, wide, with distinctive lip (Figs. 9-12). Chorionic surface smooth to slightly pitted (Figs. 9, 13-14). <b>Larva.</b> Unknown. <b>Etymology.</b> We honor Drs. Janet R. Mihuc, Paul Smith’s College, Paul Smiths, New York and Timothy B. Mihuc, Lake Champlain Research Institute, SUNY Plattsburgh, Plattsburgh, New York, respectively for their contributions to the knowledge of the natural history of the state of New York. <b>Diagnosis.</b> In Stark (2004) males of <i>P. mihucorum</i> will key to couplet 13 if the paraprocts are considered “moderately” long using Stark (2004) terminology, but the paraprocts are not thin in lateral view (Fig. 4) and the paraproct tips are also not acute in caudal aspect (Fig. 5) (as in <i>P. placida</i> (Hagen, 1861), see Stark 2004, fig. 7.266). Following the second choice of couplet 13, an impasse is reached since the paraprocts are “not short to medium”, but the paraproct tips are rounded in caudal view. Couplet 16 could be reached from couplet 15 because the dorsal patch of the aedeagal sac is “long and narrow” and the “aedeagal caecum….about as long as wide” most similar to <i>P. lagoi</i> Stark, 1989. The dorsal patch of the aedeagal sac of <i>P. mihucorum</i> consists of only 2- 3 rows of setulae (Fig. 7), whereas in <i>P. lagoi</i> the patch is wider with at least&gt;5 irregular rows of setulae (see Stark 1989, fig. 96). Additionally, the paraprocts of <i>P. mihucorum</i> possess a well-developed tooth that is subapical (Fig. 4) and not small and anteapical as in <i>P. lagoi</i> (see Stark 1989, fig. 96). The female of <i>P. mihucorum</i> would key to couplet 14, either <i>P. shubuta</i> Stark, 1989 or <i>P. decipiens</i> (Walsh, 1862). The wide deep V-shaped notch of the subgenital plate (Fig. 8) can usually distinguish <i>P. mihucorum</i> from <i>P. decipiens</i>. The subgenital plate of <i>P. shubuta</i> has a shallow V-shaped notch; similar to <i>P. mihucorum</i>, but the egg of <i>P. shubuta</i> has a short almost sessile collar (Stark 1989). The egg of <i>P. mihucorum</i> is similar to <i>P. decipiens</i> (see Stark 2004, figs. 7.397 -7.399), but apparently both species are allopatric, with the most eastern and northern confirmed record of <i>P. decipiens</i> having been reported from Virginia (Stark 1989, 2004). <i>Perlesta mihucorum</i> appears most common in large 20-30m wide low elevation (40-55m) tributaries of the Hudson River in Greene and Columbia counties. These particular streams usually have heavy silt loads with a substrate composed of gravel and cobble. Fewer individuals were encountered in relatively pristine high gradient rivers in the foothills (250-450m) of the Adirondack Mountains in Herkimer and Hamilton counties. Stoneflies collected in association with this new species included <i>Leuctra sibleyi</i> Claassen, <i>L. tenuis</i> (Pictet), <i>Bolotoperla rossi</i> (Frison), <i>Alloperla atlantica</i> Baumann, <i>A. idei</i> (Ricker), <i>A. petasata</i> Surdick, <i>Haploperla brevis</i> (Banks), <i>Agnetina capitata</i> (Pictet), <i>Neoperla occipitalis</i> (Pictet), <i>Perlesta nelsoni</i> Stark and <i>Isoperla orata</i> Frison.
description: Published as part of <i>Kondratieff, Boris C. &amp; Myers, Luke W., 2011, A New Species Of Perlesta (Plecoptera: Perlidae) From New York, pp. 197-201 in Illiesia 7 (21)</i> on pages 197-201, DOI: 10.5281/zenodo.4760299
description: {"references": ["Stark, B. P. 2004. Pages 61 - 148. Perlidae (the stones). In The stoneflies (Plecoptera) of Eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Ohio Biological Survey Bulletin New Series Volume 14.", "Stark, B. P. 1989. Perlesta placida (Hagen), an eastern Nearctic species complex (Plecoptera: Perlidae). Entomologica Scandinavica, 20: 263 - 286.", "Walsh, B. D. 1862. List of the Pseudoneuroptera of Illinois contained in the cabinet of the writer, with descriptions of over forty new species, and notes on their structural affinities. Proceedings of the Entomological Society of Philadelphia, 13: 361 - 402."]}