VOLUME SEVEN: 2011
Neoperla of unusual size from Vietnam (Plecoptera: Perlidae).
Bill P. Stark and Ignac Sivec
Illiesia 2011 7(28):302-304. Figures 1-7., 5 references (p.:304.)
(13 December 2011)
Two large female specimens, representing a possible undescribed Vietnamese Neoperla species, are described under informal designation and compared to known Vietnamese congeners.
Keywords: Plecoptera, Perlidae, Neoperla, Vietnam, unusual size
[Download .PDF(673 KB)]
A new species of Perlesta (Plecoptera: Perlidae) from North Carolina with additional records for North Carolina and Virginia.
Boris C. Kondratieff, Robert E. Zuellig, and David R. Lenat
Illiesia 2011 7(27):297-301. Figures 1-6., 13 references (p.:300-301.)
(29 November 2011)
The male of Perlesta beatyi n. sp. is described from Robeson County, North Carolina, U.S.A. and is distinguished by truncate paraproct apices with a small obscure tooth. New species records for Perlesta of North Carolina and Virginia are also given with comments on the distribution of the species in this area.
Keywords: Plecoptera: Perlidae, Perlesta, new species, U.S.A., new records, North Carolina, Virginia
[Download .PDF(681 KB)]
Polymorphism and taxonomic problems in the Perlodes microcephalus group (Plecoptera: Perlodidae); Perlodes mortoni removed from synonymy.
Illiesia 2011 7(26):291-296. Figures 1-5., 23 references (p.:295-296.)
(25 November 2011)
Perlodes spp. of the microcephalus-group can presently be identified only by microscopic sclerites on the edge of the egg anchor. However, males from populations identified by egg structure have characteristic freqency distributions of relative wing lengths (RWL) which are helpful in species distinctions. Across its range, Perlodes dispar is uniform both with regard to male RWL and egg anchor sclerites. Apart from a single small German population, P. microcephalus is uniform with regard to egg anchor sclerites, but polymorphic concerning male RWL. P. dispar and P. microcephalus are frequently sympatric biospecies. The allopatric Perlodes mortoni (Klapálek, 1906) from the British Isles is removed from synonymy with P. microcephalus (Pictet, 1833) and regarded as a distinct species. It resembles P. dispar by invariably micropterous males. The egg anchor sclerites differ from both other species but individual variation is so remarkable that no characteristic species standard can be described. The biospecies status of P. mortoni needs confirmation with other methods.
Keywords: Perlodes spp., Perlodes mortoni spec. propr., polymorphism, brachypterism, egg anchor, sympatry, allopatry, biospecies.
[Download .PDF(639 KB)]
The Plecoptera collection at the Natural History Museum in Oslo.
Illiesia 2011 7(25):280-290. Figures 1-3.,1 Table, 35 references (p.:298-290.) (14 November 2011)
The Natural History Museum, University of Oslo (NHM) houses a very large ethanol collection of Norwegian stoneflies. About half of this material is sorted and labelled; the other half consists of unsorted and largely unidentified samples. In addition, there are some 5000 high quality microscope slides of nymphal and adult body parts. Most samples were collected by the late Albert Lillehammer (1930-1992). In 2010 the collection built by Lillehammer has been digitized and georeferenced. 4305 specimen-based records have been made accessible online through the data portals of Artskart, a web service of the Norwegian Biodiversity Information Centre Artsdatabanken, and the Global Biodiversity Information Facility (GBIF). In order to facilitate access and future use, the Plecoptera collection at the NHM is described, with comments on the less common Norwegian species. The slide-mounted epiprocts of the males of the Arctic species Nemoura arctica Esben-Petersen 1910, N. sahlbergi Morton 1896 and N. viki Lillehammer 1972 are depicted. The paper concludes with suggestions for future applications of the NHM’s stonefly collection.
Keywords: Plecoptera, collections, Norway, Lillehammer, Nemoura, epiproct
[Download .PDF(1220 KB)]
New Species of Neoperla Needham and Phanoperla Banks (Plecoptera: Perlidae) from the Philippine Islands.
Ignac Sivec and Bill P. Stark
Illiesia 2011 7(24):264-279. Figures 1-64., 11 references (p.:278-279.) (27 October 2011)
Five new species of genus Neoperla Needham and three new species of genus Phanoperla Banks are proposed from specimens collected from Palawan and Mindanao in the Philippine Islands. New taxa include Neoperla agtouganon sp. n., N. andreas sp. n., N. palawan sp. n., N. sabang sp. n., N. salakot sp. n., Phanoperla batac sp. n., P. circumspina sp. n. and P. magnaspina sp. n. Additional records are given for N. dentata Sivec, 1984, N. nishidai Sivec, 1984 and N. pseudorecta Sivec, 1984, and one unassociated female is described under informal designation.
Keywords: Plecoptera, Neoperla, Phanoperla, Philippines, New species
[Download .PDF(2600 KB)]
The first record of a Far East stonefly (Plecoptera) from Central Asia.
Illiesia 2011 7(23):259-263. Figures 1-5., 33 references (p.:261-263.) (15 September 2011)
The first record of Amphinemura coreana Zwick from Kazakhstan is given. The species was hitherto known only from Korea and the Russian Far East, the new record represents an unusually large range extension for a Plecoptera species. Terminalia of the Kazakh specimens and the known distribution of the species are shown on figures.
Keywords: Plecoptera, Amphinemura coreana, Kazakhstan, new record
[Download .PDF(777 KB)]
The Isoperla of California (Plecoptera: Perlodidae); larval descriptions and a key to 17 western Nearctic species.
John B. Sandberg
Illiesia 2011 7(22):202-258. Figures 1-20., 4 tables, 14 references (p.:257-258.) (15 September 2011)
The male larvae of 17 western Nearctic species of the stonefly genus Isoperla Banks from California, Oregon, and Colorado were reared and confirmed studying everted male aedeagi. New maxilla characters are described for male larvae and used as primary characters in a larval species key. The larvae of two species, I. fulva Claassen and I. roguensis Szczytko & Stewart could not be separated and two species not currently known to occur in California, I. muir Szczytko & Stewart and I. tilasqua Szczytko & Stewart were included in the descriptions and key. Isoperla karuk Baumann & Lee is placed as a synonym of I. roguensis Szczytko & Stewart, and the larva of I. baumanni Szczytko & Stewart is correctly associated for the first time with the previously published description of I. bifurcata Szczytko & Stewart.
Keywords: larval species key, maxillae, lacinia, Isoperla, western Nearctic
[Download .PDF(6920 KB)]
A new species of Perlesta (Plecoptera: Perlidae) from New York.
Boris C. Kondratieff and Luke W. Myers
Illiesia 2011 7(21):197-201. Figures 1-14., 8 references (p.:201.) (15 September 2011)
A new species, Perlesta mihucorum described from New York, USA, is distinguished from other regional species in the male by the characteristics of the paraprocts and aedeagus and in the female by the shape of the subgenital plate and egg.
Keywords: Plecoptera: Perlidae, Perlesta, new species, Nearctic, New York
[Download .PDF(1003 KB)]
Mesocapnia aptera (Plecoptera: Capniidae) a new wingless winter stonefly from northern California, U.S.A.
Jonathan J. Lee & Richard W. Baumann
Illiesia 2011 7(20):192-196. Figures 1-6., 19 references (p.:195-196.) (11 July 2011)
Mesocapnia aptera sp. n. is described from specimens collected in Mendocino County, California. The male and female are described, illustrated using scanning electron microscope micrographs, and compared to several Mesocapnia species and other apterous western capniids.
Keywords: Plecoptera, stonefly, Capniidae, Mesocapnia, apterous, new species, northern California
[Download .PDF(730 KB)]
Records of Anacroneuria (Plecoptera: Perlidae) from Bolivia and Paraguay with descriptions of three new species.
Bill P. Stark and Richard W. Baumann
Illiesia 2011 7(19):182-191. Figures 1-24. 12 references (p.:191.) (11 July 2011)
Anacroneuria clarki sp. n. and A. vagante sp. n. are described from Bolivian specimens, and A. ypane sp. n. from a Paraguayan specimen. Records of six additional Anacroneuria species are also presented for Bolivia and three unassociated Paraguayan females are described under informal designation. One species, A. lupaca Stark & Sivec, represents a new Bolivian record. An updated checklist for the 21 known Bolivian Anacroneuria species is included.
Keywords: Plecoptera, stoneflies, Bolivia, Paraguay, Anacroneuria, new records, new species
[Download .PDF(1410 KB)]
Larvae of five species of the winter stonefly genus Capnia (Plecoptera: Capniidae) from California, U.S.A.
Kenneth W. Stewart, Eugene F. Drake and Bill P. Stark
Illiesia 2011 7(18):167-181. Figures 1-61. 22 references (p.:181.) (4 July 2011)
Associated larvae of five Capnia species from California are comparatively described and illustrated for the first time. A provisional key is presented, based on differences in the measurements and shape of the 10th tergum of mature male larvae and the visible underlying, developing epiprocts of pharate individuals. Details of the structure of the left and right mandibles, and cercal setation, are further clarified with SEM, from the previous generic description based on a single species.
Keywords: Plecoptera, Capniidae, Larval descriptions, Capnia, California
[Download .PDF(2400 KB)]
Eggs of western Nearctic Acroneuriinae (Plecoptera: Perlidae).
Bill P. Stark and Stephen Green
Illiesia 2011 7(17):157-166. Figures 1-30., 27 references (24 June 2011)
Eggs for western Nearctic acroneuriine species of Calineuria Ricker, Doroneuria Needham & Claassen and Hesperoperla Banks are examined and redescribed based on scanning electron microscopy images taken from specimens collected from a substantial portion of each species range. Within genera, species differences in egg morphology are small and not always useful for species recognition, however eggs from one population of Calineuria are significantly different from those found in other populations and this population is given informal recognition as a possible new species.
Keywords: Plecoptera, Calineuria, Doroneuria, Hesperoperla, Egg morphology, Western Nearctic
[Download .PDF(1340 KB)]
Designation of a replacement name for Capnioneura veronicae nomen nudum (Capniidae Plecoptera).
Gilles Vinçon & Ignac Sivec
Illiesia 2011 7(16):156. 1 references (23 June 2011)
Capnioneura veronicae nomen nudum is replaced by C. gouanerae. The types of C. gouanerae are designated.
Keywords: Capnioneura, Capniidae, Plecoptera, Turkey, C. gouanerae, name replacement
[Download .PDF(409 KB)]
Nemoura jejudoensis a new species of stonefly and the redescription of Amphinemura baei Ham and Lee (Plecoptera, Nemouridae) from Jeju Island, Korea.
Peter Zwick and Richard W. Baumann
Illiesia 2011 7(15):148-155. Figures 1-18, 8 references (23 June 2011)
Nemoura jejudoensis sp. n. is described from specimens collected on Jeju Island, Korea. A detailed redescription is given of Amphinemura baei Ham and Lee 1999, including new illustrations and scanning electron micrographs of adult genitalia based on numerous specimens collected from Jeju Island. In addition, a list of miscellaneous stonefly species from Korea is included based on specimens housed in the Monte L. Bean Life Science Museum, Brigham Young University, Provo, Utah USA.
Keywords: Plecoptera, Nemouridae, Amphinemura, Nemoura, new species, stoneflies, Jeju Island [= Cheju-do], Korea
[Download .PDF(1530 KB)]
Complementary descriptions of Kempnyia gracilenta (Enderlein 1909) and Kempnyia reticulata (Klapálek 1916) (Plecoptera: Perlidae).
Fernanda Avelino-Capistrano da Silva, Leandro Silva Barbosa, & Gisele Luziane de Almeida
Illiesia 2011 7(14):142-147. Figures 1-9, 20 references (23 June 2011)
In this paper the larva of Kempnyia gracilenta (Enderlein) and the larva and female of K. reticulata (Klapálek) from the state of Espírito Santo, Brazil are described and compared to known members of the genus.
Keywords: Neotropical, larvae, female, Espírito Santo State, Brazil
[Download .PDF(770 KB)]
Notes on Kempnyia, with the description of three new species (Plecoptera: Perlidae).
Claudio Gilberto Froehlich
Illiesia 2011 7(13):133-141. Figures 1-29, References 141. (13 June 2011)
Three new species of Kempnyia, K. kaingang sp. n., K. ocellata sp. n. and K. pinhoi sp. n., are described. Illustrations of the egg and female sterna 8-9 are presented for K. neotropica (Jacobsen and Bianchi). Kempnyia serrana (Navás) is recorded from the State of Sao Paulo. The female of K. petersorum Froechlich is described and a new illustration of the penial armature of that species is presented. New illustrations of the penial armature of K. tenebrosa Klapálek are also provided and a figure of the female sternum 9 of Nedanta fusca Navás is presented.
Keywords: Kempnyia, new species, Brazil, comments on species
[Download .PDF(1380 KB)]
Canopy fogging in the Valdivian forest of southern Chile produces stoneflies (Plecoptera).
William D. Shepard and Richard W. Baumann
Illiesia 2011 7(12):127-132. Figures 1-3, 5 Tables, References 132. (21 April 2011)
Canopy fogging in the Valdivian forests of southern Chile unexpectedly produced many Plecoptera throughout the austral summer. Females outnumbered males, with many females being full of eggs. It is proposed that the trees were used as environmental markers for mate location.
Keywords: Plecoptera, canopy fogging, Valdivian forest, Chile
[Download .PDF(756 KB)]
Contribution to the knowledge of the Capniidae (Plecoptera) of Turkey.
Gilles Vinçon & Ignac Sivec
Illiesia 2011 7(11):118-126. Figures 1-12, 1 Table, References 125-126. (12 April 2011)
Capnioneura bolkari sp. n., a spring emerging species from the central Taurus, and C. veronicae sp. n., an apterous autumnal relict species from the eastern Pontic Mountains, are recorded as the first Capnioneura species from Turkey. Capnia nigra (Pictet) is confirmed from Turkey and the distribution of the seven known Turkish capniids is compared to that of other West Palearctic capniids.
Keywords: New species, Capnioneura, Capniidae, Plecoptera, Turkey, C. bolkari sp. n., C. veronicae sp. n.
[Download .PDF(1490 KB)]
Further descriptions of western North American Podmosta larvae and their separation from Ostrocerca larvae (Plecoptera: Nemouridae).
Kenneth W. Stewart and Bill P. Stark
Illiesia 2011 7(10):104-117. Figures 1-52, 1 Table, References 117. (11 April 2011)
Associated larvae of the four western North American species of Podmosta are comparatively described and illustrated. Three species, Podmosta delicatula (Claassen), P. obscura (Frison) and P. weberi (Ricker), are described in detail for the first time. A preliminary larval key to the five North American species is presented, based mainly on differences in pigment pattern and cercal setation. Separation of the larvae of non-gilled nemourid genera Ostrocerca and Podmosta, though difficult, is further clarified by comparative scanning electron micrographs of the four western Nearctic Podmosta species and larvae of Ostrocerca dimicki (Frison).
Keywords: Plecoptera, Nemouridae, Larval descriptions, Podmosta, Ostrocerca, Western Nearctic
[Download .PDF(2930 KB)]
Two new Alpine Leuctra in the L. braueri species group (Plecoptera, Leuctridae).
Gilles Vinçon & Wolfram Graf
Illiesia 2011 7(9):92-103. Figures 1-10, References 102-103. (8 April 2011)
Two new species of the genus Leuctra that were previously confused with L. braueri Kempny, 1898 are described from the eastern Alps: L. muranyii sp. n. and L. juliettae sp. n. A comparative description of L. braueri is given. The composition and characters of the L. braueri species group are discussed.
Keywords: Plecoptera, Leuctridae, Leuctra, braueri group, new species, endemics, Italy, Switzerland, Austria
[Download .PDF(1140 KB)]
Description of the larva of Caucasian species Pontoperla katherinae Balinsky (Plecoptera, Chloroperlidae).
L.A. Zhiltzova, S.K. Cherchesova, S.V. Kataev, & V.O. Biasov
Illiesia 2011 7(8):89-91. Figures 1-3, References 91. (5 April 2011)
For the first time the larva of P. katherinae from the Caucasus is described. It differs from the larva of P. teberdinica in a more uniformly pigmented body color and in peculiarity of setae on body and cerci.
Keywords: Pontoperla, larval description, Chloroperlidae, Caucasus
[Download .PDF(533 KB)]
Macrogynoplax duida, a New Species of Stonefly (Plecoptera: Perlidae) from Cerro Duida, Venezuela.
Bill P. Stark
Illiesia 2011 7(7):86-88. Figures 1-4, References 87-88. (4 April 2011)
Macrogynoplax duida sp. n. is described from a male and female specimen collected from Cerro Duida, Venezuela, in 1928. The species is a close relative of M. geijskesii Zwick, known from Surinam.
Keywords: Plecoptera, Stonefly, Macrogynoplax, New species, Cerro Duida, Venezuela
[Download .PDF(510 KB)]
Contribution to the fall stonefly (Plecoptera) fauna of Korea.
Dávid Murányi and Sun Jae Park
Illiesia 2011 7(6):70-85. Figures 1-38, 1 Table, References 84-85. (9 March 2011)
The Plecoptera material collected during a fall visit to the Republic of Korea was studied. Nemoura aquila Murányi sp. n. is described from both sexes. The unknown female of Despaxia asiatica Zwick and the unknown larva of Nemoura geei Wu are described. The male and the larva of Protonemura villosa Ham & Lee are redescribed and the female is described for the first time, and the species is transferred to the P. towadensis group sensu Shimizu. The internal female genital sclerites of Amphinemura steinmanni Zwick are also described.
Keywords: Republic of Korea, Plecoptera, Amphinemura, Protonemura, Nemoura, Despaxia, new species, female description, larval description, redescription
[Download .PDF(2230 KB)]
Xanthoneuria, a new genus of stonefly (Plecoptera: Perlidae) from Japan.
Shigekazu Uchida, Bill P. Stark, and Ignac Sivec
Illiesia 2011 7(5):65-69. Figures 1-14, References 69. (9 March 2011)
Xanthoneuria is proposed as a new genus of acroneurine stonefly with Acroneuria fulva (Klapálek) as type species. Xanthoneuria bolivari (Klapálek), new combination, X. jouklii (Klapálek), new combination, and X. unimaculata (Zhiltzova) are also transferred to the new genus, and a key is presented to assist in distinguishing Japanese members of the genus.
Keywords: Xanthoneuria, Plecoptera, Perlidae, New genus, Japan
[Download .PDF(560 KB)]
Larvae of Eight Eastern North American Sweltsa (Plecoptera: Chloroperlidae).
Bill P. Stark, Boris C. Kondratieff, Ralph F. Kirchner and Kenneth W. Stewart
Illiesia 2011 7(4):51-64. Figures 1-40, References 63-64. (14 February 2011)
Larval descriptions are provided for eight eastern Nearctic species of Sweltsa. Larvae of Sweltsa hoffmani Kondratieff & Kirchner, S. lateralis (Banks), S. mediana (Banks), S. naica (Provancher), S. palearata Surdick, S. pocahontas Kirchner & Kondratieff and S. urticae (Ricker) are described for the first time and compared with S. onkos (Ricker). A provisional key is presented for larvae of these eastern Nearctic species.
Keywords: Sweltsa, Plecoptera, Larval descriptions, Eastern Nearctic
[Download .PDF(2240 KB)]
Updates to the Stonefly Fauna of Illinois and Indiana.
R. Edward DeWalt and Scott A. Grubbs
Illiesia 2011 7(3):31-50. 2 Tables, References 48-50. (11 February 2011)
In a first phase for reconstructing the stonefly fauna of the Midwest (Ohio, Indiana, Illinois, southern Ontario, Michigan, and Wisconsin) we present updates for the Illinois and Indiana stonefly fauna. Data presented here represent over 11,000 records from the Illinois Natural History Survey and several regional museums. We present three additions to the Illinois fauna, 13 to the Indiana fauna, remove Amphinemura nigrita (Provancher) from both state lists, and provide records for many other species. Illinois supports or supported at least 79 species, while the number for Indiana is 87. The two states share 70 species or 84% of the fauna between them. While Illinois has lost 20 species (25.3%), Indiana has lost 10 (11.5%), mostly from the Wabash and White River drainages. Till plain areas in northern Indiana have fared better than those in Illinois because surficial deposits are sand that promote high groundwater recharge. Areas of high diversity remaining in the two states are concentrated in the unglaciated southern landscapes.
Keywords: Plecoptera, stoneflies, Illinois, Indiana, extirpation, conservation
[Download .PDF(660 KB)]
A review of stonefly (Insecta; Plecoptera) taxonomic research in Alabama, with new state records and an updated checklist.
Scott A. Grubbs
Illiesia 2011 7(2):24-30. References 29-30. (4 February 2011)
A brief review of the literature on the taxonomy of Alabama Plecoptera is presented. New state records of Leuctra sibleyi Claassen, Zealeuctra claasseni (Frison), Perlesta decipiens (Walsh), and Isoperla decepta Frison are provided and an updated checklist of 107 Alabama stonefly species is included.
Keywords: Plecoptera, stoneflies, Alabama, new records, checklist
[Download .PDF(500 KB)]
Vibrational communication of Isoperla Banks from California and Oregon (Plecoptera: Perlodidae).
John B. Sandberg
Illiesia 2011 7(1):1-23. Figures 1-42. References 22-23. (31 January 2011)
The drumming signals of fourteen species of the stonefly genus Isoperla Banks from California and Oregon are reported. Monophasic, varied beat-interval and diphasic signal types were determined by graphing the mean interval pattern. Monophasic signals had a maximum mean interval difference of 10 milliseconds and varied beat-interval signals had greater than 10 millisecond interval differences. The diphasic signal was a continuous signal composed of monophasic, decreasing varied beat-interval and monophasic intervals. Signals are described for the first time for six species: I. baumanni Szczytko & Stewart, I. denningi Jewett, I. laucki Baumann & Lee, I. marmorata Needham & Claassen, I. pinta Frison and I. sordida Banks. Descriptions of new signal characters and signals from additional locations are provided for eight species: I. acula Jewett, I. adunca Jewett, I. bifurcata Szczytko & Stewart, I. miwok Bottorff & Szczytko, I. mormona Banks, I. quinquepunctata (Banks), I. roguensis Szczytko & Stewart and I. sobria (Hagen).
Keywords: Stonefly, Drumming signals, Mate-finding behavior
[Download .PDF(2010 KB)]