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Two new Protonemura species from Vietnam (Plecoptera: Nemouridae).
Ignac Sivec and Bill P. Stark
Illiesia 2009 5(21):204-207. (31 December 2009)
Protonemura fansipanensis sp. n. and P. neofiligera sp. n. are recognized as the first representatives of the genus known from Vietnam. The new species are compared with regional members of the genus.
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Tominemoura, a new stonefly genus from Sabah, East Malaysia (Plecoptera: Nemouridae).
Ignac Sivec and Bill P. Stark
Illiesia 2009 5(20):199-203. (30 December 2009)
Tominemoura gen. nov., is proposed for a new nemourid species, T. trilari found at high elevations on Mt. Kinabalu, Sabah, Malaysia, and assigned to the subfamily Amphinemurine. The new genus is readily distinguished from others by a unique gill arrangement and by male epiproct and paraproct structure.
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Leuctra pinhoti, a new species of stonefly (Plecoptera: Leuctridae) from Alabama, U.S.A.
Scott A. Grubbs & Andrew L. Sheldon
Illiesia 2009 5(19):195-198. (23 December 2009)
Leuctra pinhoti sp. n. is described from the Talladega National Forest region of eastern Alabama, U.S.A. Leuctra pinhoti sp. n. is distinguished from other members of the L. biloba species group mainly by the unique dorsal process on the male 8th abdominal tergum. A new Alabama state record of Diploperla robusta Stark & Gaufin is reported.
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Capnia shasta, a new species in the Californica Group from northwestern California (Plecoptera, Capniidae).
C. Riley Nelson and Richard W. Baumann
Illiesia 2009 5(18):188-194. (27 November 2009)
The genus Capnia contains 56 species in North America and approximately 150 species worldwide. A past phylogenetic analysis of the Californica Group revealed two major subgroups. From that analysis and reviewing of pertinent specimens, the Californica Subgroup includes a new species that is herein described. Capnia shasta is unique in that it is the only member of the Californica Group in which males have tergal knobs only on segment 9 and has no distinctively divided process on the epiproct. Females are not reliably identified to species in the absence of males. We ran a branch and bound analysis using a corrected matrix based on the published analysis. Our analysis yielded six equally parsimonious trees. In all of these trees the topology conformed with the previously published tree, but with Capnia shasta joining the tree in a polytomy when a consensus tree was produced. Capnia shasta is currently known from a single locality on a single date from a small tributary of the Sacramento River. We suggest that further careful winter collections of many sites in the area are warranted. The limited distribution of C. shasta points to careful conservation of the tributaries of the Sacramento River.
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Description of Etrocorema belumensis sp.n. from Royal Belum State Park, Perak, Malaysia.
Wan Nur Asiah, W.M.A., M.R. Che Salmah, & I. Sivec
Illiesia 2009 5(17):182-187. (16 November 2009)
Only one variable Etrocorema species, E. nigrogeniculatum (Enderlein), is currently recognized from Peninsular Malaysia. During limnological study in Royal Belum State Park, Malaysia, specimens of a new species of Etrocorema, E. belumensis n. sp., were discovered. Illustrations of male and female genitalia, eggs, and larvae of this new taxon are provided.
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New state stonefly (Plecoptera) records for Pennsylvania, with additional records and information on rare species.
Jane I. Earle
Illiesia 2009 5(16):169-181. (2 November 2009)
Four species are added: Zealeuctra fraxina, Alloperla idei, Sweltsa palearata, and Acroneuria kirchneri; Allocapnia wrayi is returned to the Pennsylvania stonefly record, bringing the total to 139 described species. New records and information on 25 rare species are also presented.
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Distribution of Neoperla (Plecoptera: Perlidae) in North Carolina, with new state records for three species.
David R. Lenat, Robert E. Zuellig, Boris C. Kondratieff, & Steven R. Beaty
Illiesia 2009 5(15):164-168. (9 October 2009)
Three new state records of Neoperla were collected as adults, N. catharae, N. coosa, and N. stewarti. Mapping of nymphal data (at the genus level) indicated that Neoperla occurs throughout most of the state, but it is absent from the mountains and the northern upper coastal plain. Neoperla occurs mainly in smaller streams in the western Piedmont ecoregion, but occurs mainly in rivers in the eastern part of the state. Up to three species were found to coexist at some sites.
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Sweltsa wui and Haploperla valentinae (Plecoptera: Chloroperlidae), two new stoneflies from Sichuan province, China.
Bill P. Stark and Ignac Sivec
Illiesia 2009 5(14):156-163. (30 September 2009)
Sweltsa wui sp. n. and Haploperla valentinae sp. n. are described from Balangshan Pass, Sichuan Province, and compared with known Asian species. The new Sweltsa species lacks a transverse process on tergum nine, an atypical character for this genus, and the posterior margin of male tergum nine is not strongly concave as in other Sweltsa species, consequently the generic assignment is considered tentative.
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Vibrational communication (drumming) of the western nearctic stonefly genus Hesperoperla (Plecoptera: Perlidae).
John B. Sandberg
Illiesia 2009 5(13):146-155. (15 September 2009)
The drumming signals of both species of the North American stonefly genus Hesperoperla are reported. New signals are described for H. hoguei and a new call signal character from two new populations is provided for H. pacifica. Male calls ranged in complexity from ancestral-monophasic in H. hoguei to calls containing both monophasic and derived-grouped components in H. pacifica. Intersexual communication was less specialized in H. hoguei with 2-way (male call-female answer) duets, and more specialized in H. pacifica, having both 2-way and 3-way (male-call, female-answer, male-response) exchanges.
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New descriptions of North American Taenionema larvae (Plecoptera: Taeniopterygidae).
Kenneth W. Stewart
Illiesia 2009 5(12):128-145. (26 August 2009)
The larvae of Taenionema have been poorly known, with only partial written descriptions and illustrations available for Taenionema kincaidi (Hoppe) and Taenionema pallidum (Banks), prior to the detailed description of Taenionema pacificum (Banks). Larvae of all 13 North American species were associated beginning in 1983, and comparatively studied to test the proposed generic characters, and to determine if they could be separated with external morphological characters. An expanded generic diagnosis, 112 comparative illustrations, and a provisional key to the 13 species are presented. Separation of larvae to species with the key requires a combination of characters of the 9th sternum of males and females, geographic distribution, and the few other species-specific characters.
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The Alloperla leonarda group of eastern North America, with SEM images of four out-group species (Plecoptera: Chloroperlidae).
Michele R. Willett and Bill P. Stark
Illiesia 2009 5(11):108-127. (26 August 2009)
The epiproct complex for six members of the Alloperla leonarda Ricker species group is examined with scanning electron microscopy for the first time, and monophyly for the group is asserted. Images for each species are presented and structures of the epiproct complex are compared and redescribed. Species included in the group are A. furcula Surdick, A. lenati Kondratieff & Kirchner, A. leonarda Ricker, A. natchez Surdick & Stark, A. ouachita Stark & Stewart and A. prognoides Surdick & Stark. Images of other eastern Nearctic Alloperla species were examined to provide outgroup data.
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A study of the eastern nearctic Alloperla (Plecoptera: Chloroperlidae) with hirsute epiprocts using the scanning electron microscope.
Richard W. Baumann and Boris C. Kondratieff
Illiesia 2009 5(10):99-107. (26 August 2009)
Scanning electron microscope images of the epiproct of seven species of eastern Nearctic Alloperla: A. caudata, A. chloris, A. idei, A. petasata, A. voinae, A. vostoki, and A. usa are presented. In the male, these species exhibit an epiproct tip that is covered with short appressed or long, nearly erect hairs.
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The Taeniopterygidae of Mississippi (Insecta: Plecoptera).
Bill P. Stark and Matthew B. Hicks
Illiesia 2009 5(9):85-98. (26 August 2009)
New distribution records and taxonomic keys are given for the species of Taeniopterygidae known to occur in Mississippi. Six species, Strophopteryx fasciata (Burmeister), Taeniopteryx burksi Ricker & Ross, T. lita Frison, T. lonicera Ricker & Ross, T. maura (Pictet) and T. parvula Banks are currently recognized from the state, but neither T. burksi nor T. parvula have been collected in the state since 1979.
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New records of winter stoneflies (Plecoptera: Capniidae) in Mississippi.
Bill P. Stark and Matthew B. Hicks
Illiesia 2009 5(8):80-84. (26 August 2009)
New Mississippi distribution records, based on 2007-2008 and 2008-2009 winter collections are presented for seven of the eight species of winter stoneflies (Family Capniidae) known to occur in the state.
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Contribution to the knowledge of the Protonemura corsicana species group, with a revision of the North African species of the P. talboti subgroup (Plecoptera: Nemouridae).
Gilles Vinon and Dvid Murnyi
Illiesia 2009 5(7):51-79. (26 August 2009)
Protonemura dakkii sp. n. (Morocco) and P. algirica bejaiana ssp. n. (Tunisia) are described from both sexes and larvae. For comparison, three other North African members of the Protonemura corsicana group are redescribed: P. talboti (Navs, 1929), P. algirica (Aubert, 1956) and P. berberica Vinon & Snchez-Ortega, 1999, and the larva of P. berberica is described for the first time. A morphological and biogeographical study of the P. corsicana group is presented. This group now comprises 31 species and 3 subspecies split in four subgroups (corsicana, talboti, consiglioi and spinulata) mainly according to the shape of the epiproct. The utility of the Protonemura tuberculata group is questioned, and a new group, Protonemura bacurianica group, is distinguished.
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Stoneflies (Plecoptera) in a tropical Australian stream: diversity, distribution and seasonality.
Andrew L. Sheldon and Gunther Theischinger
Illiesia 2009 5(6):40-50. (29 July 2009)
Stoneflies (Eustheniidae, Gripopterygidae) were light-trapped at 24 sites on small to large streams over a 300 m elevation gradient. Catches were small but 8 species occurred; jackknife estimates of total richness (8-11 spp.) suggest the species list is reasonably complete. Emergence patterns were weakly seasonal with apparent peaks in the warm, wet season. Some species ranged extensively along the elevation/stream size gradient but Canonical Correspondence Analysis supports the existence of a compositional gradient from lower, larger woodland streams to higher, smaller streams in rainforest. We suggest improvements in survey design for investigating stoneflies in tropical streams.
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What is Capnia umpqua Frison? (Plecoptera: Capniidae), distribution and variation of terminalia.
Richard W. Baumann and Kenneth W. Stewart
Illiesia 2009 5(5):34-39. (6 July 2009)
Capnia umpqua Frison is redescribed from specimens from Oregon and California. Images of the male and female terminalia are provided by scanning electron micrographs of specimens from throughout its range. Color photographs taken using a light microscope are also given illustrating the male terminalia. Complete distribution data are listed for material identified in this study. The misidentification of the concept of C. umpqua in Nelson and Baumann (1989) is corrected making it possible to correctly identify adults.
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Paraleuctra alta (Plecoptera: Leuctridae), a new stonefly from Alberta, Canada.
Richard W. Baumann and Bill P. Stark
Illiesia 2009 5(4):30-33. (6 July 2009)
Paraleuctra alta, a newly discovered stonefly from the Berland River, Alberta, Canada, is described from male specimens and compared with related members of the Paraleuctra occidentalis species group. The description is based, in part, on scanning electron micrographs of male genitalia.
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A contribution to the knowledge of Sweltsa exquisita (Frison) and S. occidens (Frison) and description of a new species of Sweltsa from the northern Rocky Mountains, U.S.A. (Plecoptera: Chloroperlidae).
Boris C. Kondratieff and Richard W. Baumann
Illiesia 2009 5(3):20-29. (9 March 2009)
The fine detail of the male epiproct and aedeagus of two species of similar habitus of Western Nearctic Sweltsa, S. exquisita (Frison) and S. occidens (Frison) are illustrated using the scanning electron microscope. A new species related to S. occidens, S. durfeei sp. n., is described from Montana and Idaho. Electron micrographs of the female subgenital plate are provided of S. equisita and S. durfeei sp. n. for comparison.
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Records of Neoperlini (Plecoptera: Perlidae) from Brunei Darussalam and Sarawak, with descriptions of new Phanoperla Banks and Neoperla Needham species.
Bill P. Stark and Andrew L. Sheldon
Illiesia 2009 5(2):11-19. (5 February 2009)
Phanoperla astrospinata sp. n. and P. belalong sp. n. are proposed from specimens collected in Brunei Darussalam, and a provisional key for males of Bornean Phanoperla is presented. The first records for Phanoperla pumilio (Klaplek), Neoperla divergens Zwick, N. parva Banks, N. sabah Zwick, N. securifera Zwick, and N. theobromae Zwick from Brunei Darussalam are also given and a new species, Neoperla grafei sp. n., and a few records of N. parva, N. rougemonti Zwick and Phanoperla anomala x bakeri hybrids from Sarawak are included.
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Two interesting new species of Isoperla from northern California (Plecoptera: Perlodidae).
Richard W. Baumann & Jonathan J. Lee
Illiesia 2009 5(1):1-10. (26 January 2009)
Isoperla laucki sp. n. and I. karuk sp. n. are described from the Coast Range in northwestern California. Isoperla laucki is shown to be a peculiar member of the genus in western North America based on the male aedeagus, female egg and color pattern of the nymph. Isoperla karuk is included in the Isoperla marmorata complex, where it shares a sclerotized club-shaped process on the male aedeagus. Images of the male and eggs of both species and the female subgenital plate and nymphal mouth parts of I. laucki are provided as scanning electron micrographs. A color photograph of the nymphal habitus of I. laucki is included. Distribution data are given for the confirmed specimens available of both species.
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