illiesia About the Journal Instructions for Authors Papers Home


Taxonomic notes on Guaranyperla (Plecoptera: Gripopterygidae).
Claudio Gilberto Froehlich.
Illiesia 2015 11(14):175-178. Figures 1-8, 3 references (p.:178) (21 December 2015)
The males of Guaranyperla guapiara Froehlich 2001 and of G. nitens Froehlich 2001 are described. The larva designated as "spec. A" in Froehlich (2001) is confirmed to be G. nitens.
Keywords: Keywords: Plecoptera, Gripopterygidae, Guaranyperla, male descriptions, larval descriptions, Brazil
[Download .PDF (699 KB)]

New state records of Kentucky (USA) stoneflies (Plecoptera).
Tarter, D.C., D.L. Chaffee, S.A. Grubbs, & R.E. DeWalt.
Illiesia 2015 11(13):167-174. 1 Figure, 24 references (pp.:173-174.) (11 December 2015)
The checklist of the stoneflies of Kentucky is updated to 125 species. Fourteen new or confirmed state records and associated range extensions are reported for Leuctra carolinensis Claassen, L. truncata Claassen, L. variabilis Hanson, Alloperla aracoma Harper & Kirchner, Sweltsa lateralis (Banks), Agnetina annulipes (Hagen), Neoperla coosa Smith & Stark, Paragnetina kansensis (Banks), Perlesta ouabache Grubbs & DeWalt, P. placida (Hagen), Hydroperla fugitans (Needham & Claassen), Isoperla bilineata (Say), I. kirchneri Szczytko & Kondratieff, and I. namata Frison.
Keywords: Keywords: Plecoptera, stoneflies, Kentucky, U.S.A, state records, range extensions
[Download .PDF (629 KB)]

Leuctra schusteri, a new stonefly species (Plecoptera: Leuctridae) of the L. tenuis (Pictet) group from the southeastern USA.
Scott A. Grubbs
Illiesia 2015 11(12):147-166. Figures 1-54, 20 references (pp.:165-166.) (10 November 2015)
Leuctra schusteri sp. n. is described from spring runs located in the Interior Plateau Region in central Kentucky, USA. Leuctra schusteri sp. n. is differentiated from the other members of the L. tenuis (Pictet) species group, particularly L. tenuis, by characteristics of the paraprocts. Scanning electron micrographs and descriptions of diagnostic morphological characteristics are provided for males of all species of the L. tenuis group. A taxonomic key to the male adult stage is included.
Keywords: Keywords: Plecoptera, Leuctridae, Leuctra, Nearctic, Kentucky, new species
[Download .PDF (4010 KB)]

Evaluation of the morphological species concepts of 16 western Nearctic Isoperla species (Plecoptera: Perlodidae) and their respective species groups using DNA barcoding.
Brian A. Gill, John B. Sandberg, & Boris C. Kondratieff
Illiesia 2015 11(11):130-146. Figures 1-4, 4 tables, 70 references (pp.:143-146.) (10 September 2015)
We evaluate support for the morphologically based species concepts for 16 western Nearctic Isoperla Banks 1906 species (Plecoptera: Perlodidae) and their respective species groups using the barcode fragment of the mitochondrial gene Cytochrome c Oxidase subunit I (COI) and phylogenetic analyses. Species identifications and assignments to groups were based solely on current morphological species concepts in the literature. COI was sequenced for each species and pairwise genetic distances calculated to understand the magnitude and distribution of genetic variation within this group. COI data were analyzed using both distance (neighbor-joining) and character based (Bayesian inference) phylogenetic approaches. We found for seven morphologically defined taxa that intraspecific genetic variation at COI exceeded the traditional arbitrary 2% sequence divergence threshold sometimes used to delimit species. However, despite these relatively high intraspecific divergence values, we consistently found diagnostic gaps in divergence values between morphologically defined species. Phylogenetic analyses strongly supported the monophyly of all individuals assigned the same species identification based on morphology. Morphological species groups originally proposed by Szczytko & Stewart (1979) were only partially supported with two monophyletic species groups; however, one ambiguous paraphyletic/polyphyletic species group and two polyphyletic species groups were also recovered. Based on current evidence, we propose no changes to the conceptualization of the species groups presented in Szczytko & Stewart (1979) at this time, but rather point out that the present arrangement of species within groups is in need of revision.
Keywords: Keywords: Isoperla, Perlodidae, Plecoptera, DNA barcoding, Phylogenetics
[Download .PDF (1532 KB)]

Just like birdwatching: The first record of Megaperlodes tiunovi Teslenko 2015 (Plecoptera: Perlodidae) from Korea.
Dávid Murányi & Jeong Mi Hwang
Illiesia 2015 11(10):126-129. Figures 1-2, 14 references (pp.:128-129.) (20 August 2015)
The genus Megaperlodes Yokoyama, Isobe & Yamamoto, 1990 is reported for the first time from the Korean Peninsula based on a color photograph of a M. tiunovi Teslenko 2015 specimen in Gangwon Province of South Korea. With this record, sixty-two species are now known from the country. A distribution map of the genus is also presented.
Keywords: Keywords: Megaperlodes Yokoyama, Isobe & Yamamoto, 1990, distribution, South Korea, Russian Far East, Japan
[Download .PDF(631 KB)]

Sierracapnia, a new genus of Capniidae (Plecoptera) from western North America.
Bottorff, R.L. & R.W. Baumann
Illiesia 2015 11(09):104-125. Figures 1-41, 1 table, 16 references (pp.:124-125.) (27 July 2015)
The members of the Capnia barberi species group, as defined in Nelson and Baumann (1989), are included in a new genus, Sierracapnia, with C. barberi Claassen as the type species. Seven species are included: S. barberi (Claassen 1924) new comb., S. hornigi (Baumann and Sheldon 1984) new comb., S. mono (Nelson and Baumann 1987) new comb., S. palomar (Nelson and Baumann 1987) new comb., S. shepardi (Nelson and Baumann 1987) new comb., S. yosemite (Nelson and Baumann 1987) new comb., and S. washoe n. sp. Sierracapnia washoe is described as a new species. Line drawings are given for S. washoe and scanning electron micrographs are provided for all species.
Keywords: Keywords: Plecoptera, stonefly, Capniidae, Sierracapnia, western North America
[Download .PDF(3019 KB)]

Kathroperla siskiyou, a new stonefly species from California and Oregon, U.S.A. (Plecoptera: Chloroperlidae).
Bill P. Stark, Boris C. Kondratieff, and Chris J. Verdone
Illiesia 2015 11(08):92-103. Figures 1-25, 20 references (pp.:102-103.)
(27 March 2015)
A new stonefly species, Kathroperla siskiyou, is proposed from specimens collected in southern Oregon and northern California. Adults and eggs of the new species are compared with those of two sympatric congeners, K. perdita Banks 1920 and K. takhoma Stark & Surdick 1987.
Keywords: Kathroperla, Plecoptera, Chloroperlidae, egg morphology, new species
[Download .PDF(2040 KB)]

New Species and Records of Neoperla (Plecoptera: Perlidae) from India.
Bill P. Stark and Ignac Sivec
Illiesia 2015 11(07):75-91. Figures 1-42, 1 table, 25 references (pp.:90-91.)
(13 March 2015)
Records and descriptions are provided for nine formally recognized species of Neoperla collected in India. Neoperla agumbe sp. n. from Karnataka State, N. emarginata sp. n. from Madhya Pradesh State and N. orissa sp. n. from Orissa State are described as new, and new records of several Indian states are given for N. asperipenis Zwick, N. biseriata Zwick & Anbalagan, N. hamata Jewett, N. nitida Kimmins, N. ochracea Zwick and N. schlitz Stark & Sivec. Four additional species represented by females with eggs are described under informal designations, and the putative female and egg are described for N. schlitz.
Keywords: Plecoptera, Stonefly, Neoperla, India, new species, new records
[Download .PDF(2470 KB)]

The drumming signals of three winter stonefly species (Capniidae, Leuctridae: Plecoptera); with discussion resolving two common interval patterns.
John B. Sandberg, Larry E. Serpa, and Eugene F. Drake
Illiesia 2015 11(06):51-74. Figures 1-16, 7 tables, 34 references (pp.:72-74.)
(13 February 2015)
The drumming signals of three winter stonefly species from two intermittent California Coast Range streams are described. Calileuctra dobryi male calls have monophasic and decreasing varied beat-interval patterns. Mesocapnia frisoni calls have monophasic and increasing varied beat-interval patterns. Calileuctra ephemera calls only have decreasing varied beat-interval patterns. There is considerable overlap in the mean interbeat intervals of the two allopatric Calileuctra species and only slight differences in mean number of beats/call and call duration. However, the mean interbeat interval pattern provides the most accurate recognition of the species.
From a review of 34 Nearctic descriptive drumming papers (1977 to 2011), the term diphasic was inconsistently used to describe percussive signals in two different ways: the interbeat interval pattern (radically changing rhythm) and the signal pattern (two repeated calls composed of differing beat counts and interbeat intervals). Currently, the term monophasic is used to describe nearly-even or unchanging signal interval patterns. The definitions of 20 drumming variables are provided and four broad descriptive characters are updated, including a generalized example of three interbeat interval patterns with analyses and pattern determinations. The accuracy and precision of three sound analysis programs are compared, and methods for drumming signal recording, digital signal analysis, and experimental research are presented.
Keywords: Plecoptera, Calileuctra, Mesocapnia, vibrational communication, drumming
[Download .PDF(2920 KB)]

Colonization of Lake Erie tributaries by Allocapnia recta (Capniidae).
Alison L. Yasick, Robert A. Krebs, and Julie A. Wolin
Illiesia 2015 11(05):41-50. Figures 1-2, 4 tables, 55 references (pp.:47-50.)
(10 February 2015)
Plecoptera display a variety of dispersal mechanisms. The most reduced of these, walking, is common for winter stoneflies in the family Capniidae. To examine dispersal in a winter stonefly, Allocapnia recta, we sequenced a fragment of the 16s rRNA mitochondrial gene from four adjacent Lake Erie drainages. Nineteen unique haplotypes were obtained from 107 specimens. The four watersheds explained 37% of the haplotype diversity and all pairwise contrasts among streams were statistically significant; not one haplotype was common to all four watersheds. This extreme level of divergence among populations separated briefly in both space and time suggest minimal if any measurable gene flow and therefore the possibility that geological processes may better explain northern colonization to the Great Lakes than may adult migration. One possibility is for post-glacial change in topography, in particular isostatic adjustment to raise land, which led to flow reversal at the headwaters of rivers along what now is Ohio’s Northern Divide, separating the Laurentian Great Lakes from the Ohio/Mississippi River system.
Keywords: Allocapnia recta, distribution, haplotypes, migration, mtDNA, population structure
[Download .PDF(746 KB)]

Notes on the genus Phanoperla Banks from Sri Lanka and India (Plecoptera: Perlidae).
Denise Mason and Bill P. Stark
Illiesia 2015 11(04):29-40. Figures 1-27, 1 table, 16 references (pp.:40.)
(6 February 2015)
Eggs of Phanoperla nana Zwick 1982a, P. wedda Zwick 1982a, and an associated female from Sri Lanka are described based on scanning electron micrographs. The putative female and egg are described for P. peniculus Kawai 1975, and a revised key is provided for Indian and Sri Lankan Phanoperla males.
Keywords: Plecoptera, Phanoperla, Plecoptera, Sri Lanka, India, egg morphology, new records
[Download .PDF(1.96 MB)]

The first record of genus Suwallia Ricker, 1943 (Plecoptera: Chloroperlidae) from China.
Weihai Li, Dávid Murányi and Li Shi
Illiesia 2015 11(03):23-28. Figures 1-10, 17 references (pp.:27-28.)
(22 January 2015)
The chloroperline stonefly genus Suwallia is reported from China for the first time from the Inner Mongolia Autonomous Region. A supplementary description is provided for the identification of Suwallia teleckojensis (Šámal 1939).
Keywords: Plecoptera, Suwallia teleckojensis, Inner Mongolia Autonomous Region
[Download .PDF(991 KB)]

Sierraperla Jewett 1954 (Plecoptera: Peltoperlidae), distribution, egg morphology and description of a new species.
Stark, B.P., B.C. Kondratieff, J.B. Sandberg, B.A. Gill, C.J. Verdone, and A.B. Harrison
Illiesia 2015 11(02):8-22. Figures 1-34, 1 table, 20 references (p.:22.)
(21 January 2015)
The genus Sierraperla Jewett is reviewed and a new species, S. tolowa is recognized. Data supporting recognition of the new species include scanning electron microscopy of egg chorion, adult external terminalia, morphology of internal male genitalia, adult pigment patterns, and DNA barcodes (cytochrome c oxidase I; COI).
Keywords: Plecoptera, Peltoperlidae, Sierraperla, egg morphology, scanning electron microscopy, COI gene, cytochrome c oxidase I, DNA barcodes, new species
[Download .PDF(2710 KB)]

Descriptions of the adult male and female genitalia of the genus Osobenus Ricker (Plecoptera: Perlodidae).
Sandberg, J., B.C. Kondratieff, and C. Verdone
Illiesia 2015 11(01):1-7. Figures 1-17, 10 references (p.:7.)
(21 January 2015)
The male and female terminalia of the perlodine Osobenus yakimae (Hoppe 1938) are described, supported by scanning electron micrographs and color images. The distinctive epiproct of the male is described in detail for the first time. The paired dorsal membranous processes of the epiproct terminating in 6-7 large external spinulae processes appear unique within the Diploperlini of the Perlodinae.
Keywords: Osobenus adult male and female genitalia descriptions
[Download .PDF(1510 KB)]

. .