1,723,587 research outputs found
Neriene poculiforma Liu & Chen 2010
No full textNeriene poculiforma Liu & Chen, 2010 Figs 56–58, 69 Neriene poculiforma Liu & Chen, 2010: 65, f. 1A–I, 2A–K (Dmf). Material examined. Yunnan: Xishuangbanna Dai Autonomous Prefecture, Mengla County, Menglun Town, Xishuangbanna Natural Reserve, 21.94°N, 101.25°E, 555m, 1.ix.2009, Zhenyu Wang leg., 1M (holotype), 3MM and 25FF paratypes (CBEE); 50 females, collection site as above, 11. to 16.x.2005, Jian Chen and Fengxiang Liu leg. Diagnosis and Description: See Liu & Chen (2010). Distribution: China (Yunnan) (Fig. 69).Published as part of Li, Jian Yong, Liu, Jie & Chen, Jian, 2018, A review of some Neriene spiders (Araneae, Linyphiidae) from China, pp. 1-90 in Zootaxa 4513 (1) on page 59, DOI: 10.11646/zootaxa.4513.1.1, http://zenodo.org/record/260765
Two channel chaotic communication using synchronized Liu-Chen systems
No full textThe study presents the analytical, numerical and experimental results of the synchronization of identical chaotic Liu-Chen systems. The synchronized Liu-Chen systems were applied to create a two-channel communication system where a chaotic masking signal is added to the information signal at the transmitter and, at the receiver, the masking signal is regenerated and subtracted from the received signal to recover the information. The two-channel scheme was used wherein the synchronizing signal and the information signal were transmitted at separate channels. It is believed that the study is the first to synchronize identical Liu-Chen systems and the first to implement electronically the two-channel scheme. The synchronized Liu-Chen systems exhibit identical or marginalized in-phase synchronization or anti-phase synchronization depending on the initial conditions of the drive and response systems. The information signal in the form of sinusoidal wave, square wave and triangular wave with a frequency of 30 Hz and of varying amplitudes were used in the study. Experiments showed that the information signal can only be recovered at the receiver when the synchronized Liu-Chen systems were exhibiting in phase synchronization. The quality of the recovered information signal depends on the amplitude of the transmitted information signal. Thus, the two-channel communication system using synchronized Liu-Chen systems could be used to transmit and receive information signal
Mesotritia serrata Liu & Chen 2010
No full textMesotritia serrata Liu & Chen, 2010: 46 — Holotype (NZMC, Yao-27), litter, Yuelushan Mt., Hunan Province, P. R. China (28°11'15.87"N, 112°55'25.76"E).Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, new mite species described during 2007 to 2012 3663, pp. 1-102 in Zootaxa 3663 (1) on page 70, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/563059
Apanteles thoracartus Liu & Chen, sp. n.
No full textApanteles thoracartus Liu & Chen, sp. n. Figure 10 Description. Female. Body length ca. 2.2 mm, fore wing length ca. 2.6 mm. Head. Less transverse in dorsal view, 1.8 as wide as long (23.4:13.0) and wider than mesosoma (23.4:20.0). Temple shiny, rather constricted posteriorly (Fig. 10 f), with coarse punctures. Face subquadrate, 0.9 as high as wide, relatively dull, heavily punctate, sparsely pubescent (Fig. 10 a), inner margin of eyes subparallel. Ocelli relatively small, distance between fore and a hind ocellus longer than diameter of an ocellus, posterior tangent to the anterior ocellus touching the posterior pair, POL:OD:OOL=3.0:2.0:3.0. Antenna almost as long as body length, penultimate antennomere 2 longer than wide. Mesosoma. Length to breadth and height 34.0:20.0: 22.6. Disc of mesonotum relatively dull, heavily but sparsely and unevenly punctate, interspaces usually larger than diameter of punctures. Scutellar sulcus almost straight, narrow with weak carinae in between. Scutellum highly polished with only trace of punctures. Propodeum relatively shiny, with sparse independent punctures anteriorly, polished except a few short carinae on posterolateral field and around nucha. Mesopleuron highly polished, its anterior half with shallow punctation of even size. Hind femur of normal size. Spines on outer side of hind tibia sparse. Inner spur of hind tibia almost 2 × longer than the outer one, 2 / 5 length of basitarsus, outer spur is 1 / 5 length of basitarsus. Hind basitarsus as long as tarsal segments 2–4 combined. Wings. Pterostigma 3.2 × as long as its widest part. Vein 1 -R 1 (metacarp) 1.4 × longer than pterostigma, it is 6.2 × as long as its distance from apex of the marginal cell. Vein r slightly longer than width of pterostigma, vein r nearly as long as (or faintly shorter than) vein 2 -SR, both veins distinctly angled at their meeting, vein 2 -M half of vein 2 -SR. 1 st discal cell nearly 1 / 4 wider than high. Vein cu-a slightly curved. Vannal lobe beyond its widest part straight and without projecting setae. Metasoma. 1.2 × as long as thorax (40.0:34.0). T 1 narrowed towards apex, basal width 2 × hind width, 2 × longer than basal width. Concave at basal 2 / 5, highly shiny, polished, with only six punctures in an arc posteriorly. T 2 triangular, 1.6 × wider than long in the middle. T 3 1.4 × as long as T 2 (7.0:5.0). Tergites after T 1 relatively shiny, smooth. Hypopygium shorter than apex of abdomen. Ovipositor sheath 1.3 × longer than hind tibia (40.0:30.0), relatively thin. Colour. Body black except abdomen reddish yellow (it becomes darker at base and apex of abdomen). Flagellum and ovipositor sheath yellowish brown. Labrum and mandible dark reddish brown. Palpi, tegulae and spurs of tibiae pale yellow. Legs bright reddish yellow, hind coxa reddish brown. Fore wing membrane hyaline, faintly brownish, vein 1 -R 1, C+SC+R and pterostigma brown, other veins slightly pale. FIGURE 11. Distribution map of lacteus- and laspeyresiella- group of Apanteles species in China. ⋅: Apanteles basicavus Liu & Chen, sp. n.; •: Apanteles brevivena Liu & Chen, sp. n.; ★: Apanteles laspeyresiella Papp, 1972; ˔: Apanteles parapholetesor Liu & Chen, sp. n. FIGURE 12. Distribution map of mycetophilus -group of Apanteles species in China. •: Apanteles artustigma Liu & Chen, sp. n.; ■: Apanteles hainanensis Liu & Chen, sp. n.; ˔: Apanteles magnioculus Liu & Chen, sp. n.; ★: Apanteles odites Nixon, 1965; ♦: Apanteles sparsus Liu & Chen, sp. n.; ♥: Apanteles thoracartus Liu & Chen, sp. n. Male. Unknown. Host. Unknown. Material examined. Holotype: ♀, Chebaling, Shixing, Guangdong, 2003. VIII. 21, Xu Zaifu, No. 20052553. Distribution. China (Province: Guangdong). Etymology. The specific name “ thoracartus ” derives from the Latin “thorac-” and “artus”, referring to the distinctly narrow mesosoma. Remarks. This species is similar to A. odites Nixon, but can be separated by the following: mesoscutum without satin-like sheen (in the latter species satin-like); ovipositor not falcate towards apex (in the latter species markedly falcate); and metacarp shorter (in the latter species extremely long, almost closing the marginal cell).Published as part of Liu, Zhen, He, Jun-Hua & Chen, Xue-Xin, 2015, The lacteus-, laspeyresiella - and mycetophilus - groups of Apanteles Foerster, 1862 (Hymenoptera, Braconidae, Microgastrinae) in China, with descriptions of eight new species, pp. 370-392 in Zootaxa 3949 (3) on pages 387-391, DOI: 10.11646/zootaxa.3949.3.4, http://zenodo.org/record/23865
Austrotritia didyma Liu, Chen & Qiao 2009
No full textAustrotritia didyma Liu, Chen & Qiao, 2009: 57 — Holotype (NZMC, W-89-142), litter, Yunshuidong, Fangshan District, Beijing, P. R. China (39°40'4.27"N, 115°48'48.92"E).Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, new mite species described during 2007 to 2012 3663, pp. 1-102 in Zootaxa 3663 (1) on page 70, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/563059
Apoplophora dentata Liu, Chen & Qiao 2009
No full textApoplophora dentata Liu, Chen & Qiao, 2009: 52 — Holotype (NZMC), litter, Mêdog County, Tibet, P. R. China (29°19'31.08"N, 95°19'59.51"E, 800 m).Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, new mite species described during 2007 to 2012 3663, pp. 1-102 in Zootaxa 3663 (1) on page 69, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/563059
Austrotritia fissurata Liu, Chen & Qiao 2009
No full text<p> <b> <i>Austrotritia fissurata</i> Liu, Chen & Qiao, 2009: 59</b> </p> <p> <b>—</b> Holotype (NZMC), litter, Ningan City, Heilongjiang Province, P. R. China (43°59'30.24"N, 129°14'8.97"E).</p>Published as part of <i>LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, new mite species described during 2007 to 2012 3663, pp. 1-102 in Zootaxa 3663 (1)</i> on page 70, DOI: 10.11646/zootaxa.3663.1.1, <a href="http://zenodo.org/record/5630595">http://zenodo.org/record/5630595</a>
Lepidocyrtoides oliveri Liu, Chen & Greenslade 2008
No full textLepidocyrtoides oliveri Liu, Chen & Greenslade, 2008 Fig. 36 Lepidocyrtoides oliveri Liu, Chen & Greenslade, 2008: 56, Figs 1–19, Western Australia, Nedlands (descr. orig.), deposited in SAM, holotype male on slide, examined. Remarks. The holotype of L. oliveri preSentS all characteriSticS Showed by Liu et al. 2008. However, part of dorSal chaetotaxy of Th II–III and Abd IV waS omitted in the original deScription, aS well aS part of their variationS. Th II haS 10 more anterior mac pluS 2 meS (Fig. 36A) that are not grouped aS in the other SpecieS of genuS (See FigS 7A, 13A, 22A). The poSterior Side of Th II preSentS 13–20 chaetae (moStly mac) and not 15–20 aS Shown in the original deScription, Since p 1i mac iS abSent in holotype. AlSo, another interpretation to Th III chaetotaxy, following Szeptycki (1979) to Entomobryini sensu Zhang & Deharveng (2015), chaetae p2ea iS p3, chaeta unammed iS a4, and p3 iS a5. Liu et al. (2008) reportS two chaetae preSent or not, but they can be up to three: a5, m4 and p3 (Fig. 36B). In addition, chaetae a7 and m7 are preSent in Th III and were not preSented in the deScription (See Liu et al. 2008: 58, Fig. 8). On Abd IV medially there can be at leaSt 9 anterior and 5 poSterior mac aS Show in holotype (Fig. 36C), and not 10 anterior and 9 poSterior aS in the original deScription, pluS 8 mac and 7 meS laterally which were omitted from the deScription. The S-chaetae pattern of Th II–III waS not obServed due to glaSS mounting, but on Abd IV of holotype it waS obServed 8 median SenS (ps type I and otherS type II).Published as part of Bellini, Bruno Cavalcante, 2017, The discovery of Lepidocyrtoides Schött, 1917 (Collembola, Entomobryidae, Entomobryinae) from the New World, including three new species from Brazil and one from Australia, pp. 201-248 in Zootaxa 4324 (2) on page 245, DOI: 10.11646/zootaxa.4324.2.2, http://zenodo.org/record/99763
Nyctimenius chiangi Huang, Chen & Liu, 2014 in Huang, Liu & Chen 2014
No full textNyctimenius chiangi Huang, Chen & Liu, 2014 in Huang, Liu & Chen, 2014: 437, figs. 1–8. (Figs. 56a, b) Type locality: China, Yunnan, Xishuangban, Mengla County, Longmen. Gender: male. Altitude: 1027m. Date collected: 2009.V.9. Collector: Xing-Min WANG.Published as part of Li, Zhu & Chen, Li, 2020, Primary types of longhorned beetles (Coleoptera, Cerambycidae, Vesperidae and Disteniidae) of Southwest University (SWU), pp. 25-46 in Zootaxa 4718 (1) on page 41, DOI: 10.11646/zootaxa.4718.1.2, http://zenodo.org/record/360220
FIGURE 8. Prosoponoides youyiensis Liu & Chen n in The spider genus Prosoponoides (Araneae: Linyphiidae) in China
No full textFIGURE 8. Prosoponoides youyiensis Liu & Chen n. sp., photos based on holotype and paratype. A, Female habitus, dorsal. B, Male habitus, dorsal. C–D, Epigynum. C, Ventral. D, Dorsal, cleared. Scale bars: A–B, 1 mm; C–D, 0.1 mm.Published as part of Chen, Qianjun, Zhong, Yang, Liu, Jie & Chen, Jian, 2020, The spider genus Prosoponoides (Araneae: Linyphiidae) in China, pp. 23-36 in Zootaxa 4786 (1) on page 34, DOI: 10.11646/zootaxa.4786.1.2, http://zenodo.org/record/386496
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