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Pseudosinella paclti Rusek 1961
No full textPseudosinella paclti Rusek, 1961 Figs 10–21 Pseudosinella cavernarum (Moniez, 1893) in: Paclt (1957 a, b) Diagnosis. Eyes and pigmentation absent. Labium with M 1 m 2 rEL 1 L 2 basal setae, r strongly reduced. Dorsal macrosetae: R 221 / 32 /0201+ 2. Setal pattern of abdominal tergite II: pABq 1 q 2. Abd. IV with supplementary microseta s in front of anterior trichobothrium and 2 + 2 smooth mesosetae. Conical microsetae on antennal segments absent. Apical half of Ant.III segment with 8–9 additional leaf-like setae placed ventro-externally. Foot complex as in Figs 19–21. Unguiculus with well developed external tooth. Tibiotarsal tenent hair pointed. Trochanteral organ with 10–13 smooth setae. Type material. Holotype and two paratypes on permanent slide: Slovakia, Low Tatra Mts., Demänovská cave system, Demänovská slobody Cave (Demänovská Cave of Liberty), 27.xi. 1956, leg. J. Paclt. Type material deposited in the Department of Entomology, Moravian Museum, Brno (Czech Republic). Examined material from type locality. Slovakia, Demänovská jaskyňa slobody (Demänovská Cave of Liberty), “Sieň speleoterapie” Hall, 15 specimens, collected on rotten wood and by pitfall trap, 11.v.– 27.ix. 2000, leg. Ľ. Kováč; ibid., “Mramorové riečisko” Passage, 7 specimens, pitfall trap, 11.v.– 27.ix. 2000, leg. Ľ. Kováč; Demänovská jaskyňa mieru (Demänovská Cave of Peace), 5 specimens, collected on rotten wood and surface of water pool, 11.v. 2000, leg.P. Ľuptáčik, A.Mock & Ľ. Kováč. 6 specimens from type locality saved in collection of MNHN in Paris, 21 specimens saved in collection of IBE FS UPJŠ, Košice. Other examined material. Slovakia, Horehronské podolie Basin, Bystrianska Cave, “Vstupná chodba” Passage, 4 specimens, collected on bat guano, 8.v. 2002, leg. A. Mock & Ľ. Kováč; Veľká Fatra Mts., Harmanecká Cave, “Riečište” Passage, 8 specimens, collected on rotten wood and surface of standing water, 7.v. 2002, leg. P. Ľuptáčik & Ľ. Kováč, ibid. “Bludný dóm” Dome, 3 specimens, pitfall trap, 7.v.– 22.x. 2002, leg. Ľ. Kováč; Kozie chrbty Mts., Važecká Cave, “Zrútený dóm” Hall, 2 specimens, 17.v. 2001, collected on rotten wood, leg. Ľ. Kováč. Other material kept in collection of IBE FS UPJŠ, Košice. Redescription. Body 2.0–2.3 mm long. White, without traces of pigmentation. Scales on antennae and legs absent; on manubrium scales present on its ventral side. Head. Eyes absent. Dorsal macrosetae R 221 or R (R 0 R 1 R 2) + R 3 S T T´P (setal notation after Jordana & Baquero 2007). Macrosetae ciliated (75–80 μm), with blunt apex (dorsal ones) or sharply pointed (lateral ones); mesosetae finely ciliated (20–35 μm, Fig. 10). Posterior row with finely ciliated and sharply pointed mesosetae (45 μm). Short trichobothrium (50 μm) situated laterally to ocular macroseta. Praelabral and labral setae smooth, setal pattern of labrum: 4 / 554. Labium with M 1 m 2 rEL 1 L 2 basal setae; M 1, E, L 1 and L 2 ciliated, M 2 smooth in adults (in juveniles ciliated), seta r strongly reduced (Fig. 11). Frontal row of labial setae smooth. Thorax and abdomen (Figs 14, 15 and 17). Dorsal macrosetae: / 32 /0201+ 2. Microsensillar formula 10 / 10100, microsensilla (ms) strong and placed laterally (6 μm), on Th.II and Abd.I anteriorly, on Abd.III posteriorly. Formula of smooth mesosetae 11 /01133, mesosetae (s) progressively elongated from Th.II (10 μm) to Abd.V (14 μm). Smooth mesosetae on Th.II in anterior position placed laterally to ms. Abd.IV with 2 smooth mesosetae, 1 anterior (as) and 1 posterior (ps). Setal pattern of abdominal tergite II: pABq 1 q 2 (Fig. 14); macroseta A 0.56% of the length of macroseta B (75 and 132 μm, respectively). Abd.IV with 4 supplementary microsetae (blunt, ciliated) in front of anterior trichobothrium (microseta s present) and 2 such microsetae in front of posterior trichobothrium (Fig. 15). Medial macrosetae of Abd.IV B 4 and B 6 with blunt apex, apically ciliated, equally long (190 μm). Complete setal pattern of Abd.IV tergum provided in Figs. 17 a and 17 b. Appendages. Antennae longer than head (925: 520 μm). Antennal segments I: II: III: IV as 95: 240: 225: 365 (µm); densely covered with ciliated meso- and macrosetae (35–70 µm), numerous smooth microsetae (12 µm), thin and curved sensilla (20–25 µm), and thin, straight microsensilla (10 µm). Apical bulb on Ant.IV absent; subapical organite as minute, fusiform rod (1.5 µm). Apical part of Ant. III with antennal organ consisting of 2 wrinkled, leaf-like sensory setae (12 µm), 2 guard sensilla (10 µm) and short rod (4 µm). Apical half of the segment with 8-9 additional leaf-like setae (12 µm) placed ventro-externally; segment with row of 4 external sensilla with thickened base (12 µm; Fig. 13). Ant.II apically with 2 dorso-external leaf-like setae (12 µm). Ant.I with 3 dorsal and 3 ventral basal microsetae (6–8 µm). Ventrally with a group of 10–12 thin, straight microsensilla (8–10 µm) accompanied with 7–8 smooth setae (20–25 µm) and 2 external sensilla (18–20 µm; Fig. 12). Conical microsetae cm on antennal segments absent. Unguis (claw) of legs I, II and III 40 μm long; tibiotarsi 20 μm wide. Unguis with 2 proximal (basal) teeth in 15 % length of different size, external one developed in form of wing tooth, 1 short internal tooth in 38 % length of ventral lamella (positions in % measured on leg I); apical, lateral and external teeth on unguis absent (Figs 19–21). Unguiculus (30 µm) with well developed external tooth situated in the middle of lamella. Tibiotarsal tenent hair acuminate, 28 µm long, inner macrosetae of tibiotarsi differentiated (except of proximal setae whorl): thick, apically smooth, obliquely cut and sharply pointed (Figs 19–21). Metatibiotarsus (leg III) with 1 differentiated internal seta placed in the first whorl, smooth and pointed (35 μm). Trochanteral organ (leg III) consists of 10–13 smooth setae (20–25 µm; Fig. 18). Ventral tubus with 10 ciliated setae on lateral flap. Manubrial plaque on each side with 2 pseudopores, 2 internal and 3 external ciliated setae (Fig. 16). Manubrium: dens: mucro as 340: 360: 15 (µm). Apical part of dens (0.15 of the length) not crenulated. Mucro elongated with apical teeth slightly longer than anteapical one, 1 short basal seta reaching anteapical tooth. Both sexes known. Discussion. Pseudosinella paclti is similar to P. pyrenaea Bonet, 1931 sensu Beruete and Jordana (2002), P. subdobati Gisin & Gama, 1970 and P. jeanpierrei Beruete & Jordana, 2002. All share pattern of body dorsal macrosetae (R 221 / 32 /0101+ 2), although in P. subdobati cephalic macrosetae have slightly different position, see Fig. 3 in Gisin and Gama (1970). Moreover, they share two other characters: pointed tibiotarsal tenent hair and Abd.IV tergum with supplementary microseta s. According to Gisin and Gama (1970) this seta on Abd.IV is absent in P. p a c l t i. However, the study of P. p a c l t i from the type locality (Demänovská cave system) revealed presence of the seta s on Abd.IV in this species. The group of species also shares the same setal pattern on Abd.II (pABq 1 q 2). P. paclti differs from other species by pattern of basal labial setae M 1 m 2 rEL 1 L 2 (M 1 m 2 rel 1 l 2 in P. subdobati and P. jeanpierrei, m 1 m 2 rel 1 l 2 in P. pyrenaea). The other differences between four species are in modifications of shape and arrangement of unguis and unguiculus. In P. p a c l t i unguis is relatively short with strong and unequal basal teeth of which external one is winglike, internal tooth is present and unguiculus has apparent external tooth (in other three species the tooth is absent). In the contrary, P. jeanpierrei shows higher level of troglomorphy in elongated antennae and elongated and narrowed unguis with reduced proximal teeth and a rounded expansion substituting internal tooth. And finally, P.paclti is peculiar with 8–9 additional leaf-like setae in apical half of Ant.III (in P. pyrenaea there is 1 and in P. jeanpierrei 3 of such modified setae on the segment). P. styriaca Neuherz & Nosek, 1975 from Raudner Cave in Styria (Austria) is probably belonging to the same phyletic lineage with P. paclti having similar pattern of dorsal macrosetae on thorax and abdomen (R001/ 32 / 0201+ 2) and the shape and structure of unguis and unguiculus. However, in this species many important characters remained undescribed. Distribution. Pseudosinella paclti is inhabiting karstic caves of central part of the Western Carpathians, i.e. Low Tatra Mts. (Demänovská cave system, Veľká Stanišovská Cave), Horehronské podolie Basin (Bystrianska Cave), Strážovské vrchy Mts. (Dúpna diera Cave), Veľká Fatra Mts. (Harmanecká Cave), Kozie chrbty Mts. (Važecká Cave) (Rusek 1961, Kováč et al. 2002, Mock et al. 2002). Recently, forms closely related to P. p a c l t i have been discovered in the neighbouring karstic regions, e.g. in the Bobačka Cave, Muránska Plateau karstic region (Kováč et al. 2002). Their taxonomic status is necessary to be specified since they potentially represent new troglobiotic Pseudosinella species for science.Published as part of Kováč, Ľubomír & Rusek, Josef, 2012, Redescription of two troglobiotic species of the genus Pseudosinella Schäffer, 1897 (Collembola, Entomobryidae) from the Western Carpathians, pp. 32-45 in Zootaxa 3341 on pages 38-43, DOI: 10.5281/zenodo.21367
Hydrogen peroxide - from bridesmaid to bride
No full textThe criticisms raised by John Clark concerning the use of hydrogen peroxide as a future rocket propellant are revisited. These criticisms focus on five important issues associated with detonation hazards, consequences of contamination, stability in storage, difficulties with ignition and problems associated with its freezing point. Each of these criticisms is questioned in the light of present experience and knowledge. The overall conclusion drawn is that Clark's assessment of peroxide was unfair and that many of peroxide's apparently undesirable attributes are shared with other propellants that are in common usage
Onychiurus eisi Rusek 1976
No full texteisi Rusek, 1976: 36. Onychiurus. Paratype: 1 female (slide) Canada. British Columbia, China Beach Provincial Park on the western coast of Vancouver Island, C–10 3G, [48o26’N, 124o06’W, 50 m above sea level, 24.ix.1974, in soil sample from a 250–to 300-year-old western hemlock (Tsuga heterophylla) forest], J. Rusek (CNC 348002). Earlier this species was regarded as Agraphorura eisi (Rusek, 1976) by Pomorski (2004: 77). Listed as Sensillonychiurus eisi (Rusek, 1976) by Babenko et al. (2011: 1).Published as part of Stebaeva, Sophya, Lonsdale, Owen & Babenko, Anatoly, 2016, Catalogue of type materials of springtails (Hexapoda, Collembola) in the Canadian National Collection of Insects, Arachnids & Nematodes, pp. 429-437 in Zootaxa 4088 (3) on page 431, DOI: 10.5281/zenodo.26710
Chaetaphorura vancouverica Rusek 1976
No full textvancouverica Rusek, 1976: 27. Chaetaphorura. Paratype: 1 (slide) Canada. British Columbia, [China Beach Provincial Park on the western coast of Vancouver Island (48o26’N, 124o06’W), 50 m above sea level, in soil sample from a 250–to 300-year-old western hemlock (Tsuga heterophylla) forest, 24.ix.1974], J. Rusek, C–10 2a (CNC 348173). Listed as Tullbergia vancouverica (Rusek, 1976) by Christiansen & Bellinger (1980–1981: 508).Published as part of Stebaeva, Sophya, Lonsdale, Owen & Babenko, Anatoly, 2016, Catalogue of type materials of springtails (Hexapoda, Collembola) in the Canadian National Collection of Insects, Arachnids & Nematodes, pp. 429-437 in Zootaxa 4088 (3) on page 434, DOI: 10.5281/zenodo.26710
Campodea (Campodea) kasiki Rusek 1964
No full textCampodea (Campodea) kasiki Rusek, 1964 Campodea (Campodea) kasiki Rusek, 1964: 140, figs 57–77. Diagnosis (Rusek 1964) Body length 3.5 mm; short, smooth clothing setae; midle-sized, thin, barbed notal macrosetae with a few thin and long barbs; long smooth notal marginal setae; smooth marginal setae; 1+1 ma macrosetae on I–VII urotergites, 1+1 la, 1+1 lp on IV–VII urotergites, 3+3 lp on VIII urotergite and 5+5 lp on IX abdominal segment. Taxonomic notes Anatolian specimens quoted by Sendra et al. (2006) show some features that have not been described by Rusek (1964) (Supplementary file 2): epicuticle without microdenticles; 23–25 antennomeres with sensillum of the third antennomere in dorsal position; and one trochanteral sensillum. The female from Montenegro studied doesn’t have microsenticles and no trochanteral sensillum has been seen either, but the antennae are completely regenerated. Habitat and distribution Soil-dwelling species collected in three isolated regions, in the Tatra Mountains of Slovakia (Rusek 1964), at a single locality in Montenegro and in the central and eastern Anatolian Peninsula (Sendra et al. 2006).Published as part of Sendra, Alberto & Reboleira, Ana Sofia P. S., 2020, Euro-Mediterranean fauna of Campodeinae (Campodeidae, Diplura), pp. 1-130 in European Journal of Taxonomy 728 on page 39, DOI: 10.5852/ejt.2020.728.1181, http://zenodo.org/record/431688
Campodea (Dicampa) condei Rusek 1965
No full textCampodea (Dicampa) condei Rusek, 1965 Campodea (Dicampa) condei Rusek, 1965a: 1351, figs 3(1–12), 4(1–6). Diagnosis (Rusek 1965a) Body length 3.0 mm; short, smooth clothing setae; antennae with 20–25 antennomeres; sensillum of third antennomere in dorsal position; middle-sized, robust notal macrosetare almost completely covered with short barbs notal macrosetae; short thin pine cone notal marginal setae; 1+1 lp macrosetae on VI– VII urotergites, 3+3 lp on VIII urotergite and 5+5 lp on IX abdominal segment; cerci covered in long macrosetae with distal barbs and a few clothing setae. Habitat and distribution Soil-dwelling species distributed in southwestern Russia, near the coast of the Black Sea (Rusek 1965a).Published as part of Sendra, Alberto & Reboleira, Ana Sofia P. S., 2020, Euro-Mediterranean fauna of Campodeinae (Campodeidae, Diplura), pp. 1-130 in European Journal of Taxonomy 728 on page 70, DOI: 10.5852/ejt.2020.728.1181, http://zenodo.org/record/431688
Campodea (Dicampa) caucasica Rusek 1965
No full textCampodea (Dicampa) caucasica Rusek, 1965 Campodea (Dicampa) caucasica Rusek, 1965a: 1352, figs 7–18. Diagnosis (Rusek 1965a) Body length 3.4 mm; short, smooth clothing setae; antennae with 21 antennomeres; short (ma, la) and long (lp), poorly barbed notal macrosetae; slightly thin pine cone notal marginal setae; 1+1 la, 1+1 lp macrosetae on VII urotergite and 3+3 lp on VIII abdominal segment. Habitat and distribution Soil-dwelling species found in a forest near Sochi, southwestern Russia (Rusek 1965a).Published as part of Sendra, Alberto & Reboleira, Ana Sofia P. S., 2020, Euro-Mediterranean fauna of Campodeinae (Campodeidae, Diplura), pp. 1-130 in European Journal of Taxonomy 728 on page 69, DOI: 10.5852/ejt.2020.728.1181, http://zenodo.org/record/431688
Mesaphorura macrochaeta Rusek 1976
No full textmacrochaeta Rusek, 1976: 33. Mesaphorura. Paratype: 1 (slide) Canada. British Columbia, [Saanich Peninsula on Vancouver Island, Thomas S. Francis Provincial Park (48o29’N, 123o27’W), 110 m above sea level, 21.x.] 1974, [in soil sample from a 300-year-old Douglas-fir (Pseudotsuga menziesii) forest with snowberry (Symphoricarpos albus) and mosses], C–101 8a, J. Rusek (CNC 348213).Published as part of Stebaeva, Sophya, Lonsdale, Owen & Babenko, Anatoly, 2016, Catalogue of type materials of springtails (Hexapoda, Collembola) in the Canadian National Collection of Insects, Arachnids & Nematodes, pp. 429-437 in Zootaxa 4088 (3) on page 432, DOI: 10.5281/zenodo.26710
Sensiphorura marshalli Rusek 1976
No full textmarshalli Rusek, 1976: 21. Sensiphorura. Paratypes: 2 (2 slides) Canada. British Columbia, China Beach [Provincial] Park [on the western coast of Vancouver Island (48o26’N, 124o06’W), 50 m above sea level, in soil samples from a 250–300-year-old western hemlock (Tsuga heterophylla) forest], 1975 [“24.ix.1974” in description], J. Rusek (CNC 348026, C 10 2a and CNC 348101, C10 5B).Published as part of Stebaeva, Sophya, Lonsdale, Owen & Babenko, Anatoly, 2016, Catalogue of type materials of springtails (Hexapoda, Collembola) in the Canadian National Collection of Insects, Arachnids & Nematodes, pp. 429-437 in Zootaxa 4088 (3) on page 432, DOI: 10.5281/zenodo.26710
Campodea (Campodea) donensis Rusek 1965
No full text3. Campodea (Campodea) donensis Rusek, 1965 Campodea (Campodea) donensis Rusek, 1965: 1346, Plate 1, Figs. 1 –19. Distribution. Ankara: Çamlýdere, 14.VIII.2005, 4 ♂, 3 ♀, 7 juv., leg. A. Sendra (Sendra et al. 2010).Published as part of Tusun, Sadreddin & Satar, Ali, 2020, First annotated checklist of the Diplura (Insecta) of Turkey, pp. 353-362 in Zootaxa 4821 (2) on page 355, DOI: 10.11646/zootaxa.4821.2.7, http://zenodo.org/record/439877
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