149,886 research outputs found
On the divergence difficulty of quantized field theories and the rigorous treatment of radiation reaction : with related additional papers
No full textBy an orthodox application of the perturbation theory to the general case of a quantized field, it is shown that the divergence difficulty hitherto encountered arises from a faulty application of the expansion method. The difficulty disappears if the degeneracy of the unperturbed system is properly treated by the method of secular perturbation. Physically, it is shown that this amounts to a rigorous treatment of the radiation reaction.On the divergence difficulty of quantized field theories and the rigorous treatment of radiation reaction || Anomalous Scattering of Mesons / W. Heitler and H.W. Peng. Reprinted from The Physical Review, Vol. 62, Nos. 1 and 2, 81-82, July 1 and 15, 1942 || On the production of mesons by proton-proton collisions / W. Heitler and H.W. Peng. Proceedings of the Royal Irish Academy Vol. XLIX, Section A, No. 7 || On the Production of Mesons by Light Quanta and Related Processes / by J. Hamilton and H. W. Peng. Proceedings of the Royal Irish Academy Vol. XLIX, Section A, No. 11 || On the cascade production of mesons / H. W. Peng. Proceedings of the Royal Irish Academy Vol. XLIX, Section A, No. 14 || Theory of cosmic-ray mesons / J. Hamilton, W. Heitler, and H. W. Peng. Reprinted from The Physical Review, Vol. 64, Nos. 3 and 4, 78-94, August 1 and 15, 1943 || Quantum Mechanics of Fields. 1. Pure Fields / by Professor Max Born, F.R.S., and H. W. Peng. [Proceedings of the Royal Society of Edinburgh Section A: Mathematics. Volume 62, Issue 1, 1944 , pp. 40-57] || Statistical mechanics of fields and the 'apeiron'. Reprinted from Nature, vol. 153, page 164, February 5, 1944 || Quantum Mechanics of Fields. 11. Statistics of Pure Fields / by Professor Max Born, F.R.S., and H. W. Peng. Proceedings of the Royal Society of Edinburgh Section A: Mathematics. Volume LXII, Part 1 (no. 12) || Quantum Mechanics of Fields. Ill. Electromagnetic Field and Electron Field in Interaction / by Professor Max Born, F.R.S., and H. W. Peng. Proceedings of the Royal Society of Edinburgh Section A: Mathematics. Volume LXII, Part II (no. 15) || The Divergence Difficulty of Quantized Field Theories. Reprinted from Nature, vol. 154, page 544, October 28, 1944
Non-fragile H infinity control for switched stochastic delay systems with application to water quality process
No full textArticle first published online: 14 JAN 2013
Link to a related website: https://re.public.polimi.it/bitstream/11311/1028692/2/Non-fragile%20H%20control%20for%20switched%20stochastic%20delay%20systems_11311-1028692_Wang.pdf, Open Access via UnpaywallIn this paper, the problem of non-fragile observer-based H ∞ control for discrete-time switched delay systems is investigated. Both data missing and time delays are taken into account in the links from sensors to observers and from controllers to actuators. Because data missing satisfies the Bernoulli distribution, such problem is transformed into an H ∞ control problem for stochastic switched delay systems. Average dwell time approach is used to obtain sufficient conditions on the solvability of such problems. A numerical example and a real example for water quality control are provided to illustrate the effectiveness and potential applications of the proposed techniques.Dong Wang, Peng Shi, Wei Wang and Hamid R. Karim
Post-translational formylglycine modification of bacterial sulfatases by the radical S-adenosylmethionine protein AtsB
No full textFang QH, Peng JH, Dierks T. Post-translational formylglycine modification of bacterial sulfatases by the radical S-adenosylmethionine protein AtsB. JOURNAL OF BIOLOGICAL CHEMISTRY. 2004;279(15):14570-14578.C-alpha-Formylglycine (FGly) is the catalytic residue of sulfatases. FGly is generated by post-translational modification of a cysteine ( prokaryotes and eukaryotes) or serine ( prokaryotes) located in a conserved (C/S) XPXR motif. AtsB of Klebsiella pneumoniae is directly involved in FGly generation from serine. AtsB is predicted to belong to the newly discovered radical S-adenosylmethionine (SAM) superfamily. By in vivo and in vitro studies we show that SAM is the critical co-factor for formation of a functional AtsB . SAM . sulfatase complex and for FGly formation by AtsB. The SAM-binding site of AtsB involves (83)GGE(85) and possibly also a juxtaposed FeS center coordinated by Cys(39) and Cys(42), as indicated by alanine scanning mutagenesis. Mutation of these and other conserved cysteines as well as treatment with metal chelators fully impaired FGly formation, indicating that all three predicted FeS centers are crucial for AtsB function. It is concluded that AtsB oxidizes serine to FGly by a radical mechanism that is initiated through reductive cleavage of SAM, thereby generating the highly oxidizing deoxyadenosyl radical, which abstracts a hydrogen from the serine-CbetaH2-OH side chain
Hamataliwa cucullata Tang & Wang & Peng 2012, sp. nov.
No full textHamataliwa cucullata sp. nov. Figs 1–15 Type material (CHINA: Yunnan, Tengchong County). Holotype ♂, Mingguang Town, Zizhi Village, Cizhuhe River bank (N25º76.661', E98º61.739', 2120 m), 21 May 2006, C.M. Yin and J.F. Hu leg. (HNU _ YHY09). Paratypes: 1 ♂, 3 ♀, same data as holotype (HNU _ YHY09); 1 ♂, 3 ♀, Jietou Town, Datang Village, Daheling, Ganjiao (N25º42.018', E98º40.946', 1878 m), 19 May 2006, X.J. Peng, X.P. Wang and P. Hu leg. (CAS _ Peng 060519); 1 ♀, Jietou Town, Datang Village, Daheling, Ganjiao (N25º74.556', E98º69.630', 2030 m), 15 May 2006, X.J. Peng, X.P. Wang and P. Hu leg. (HNU _ Peng 060515); 1 ♀, Jietou Town, Datang Village, Daheling, Ganjiao (N25º63.327', E98º67.035', 1779 m), 18 May 2006, X.J. Peng, X.P. Wang and P. Hu leg. (HNU _ Peng 060518); 1 ♂, Jietou Town, Datang Village, Longtang, Hemuguayuan (N25º75.720', E98º69.459', 2078 m), 16 May 2006, X.J. Peng, X.P. Wang and P. Hu leg. (CAS _ Peng 060516); 1 ♀, Jietou Town, Datang Village, Dahetou, Lingganjiao (N25º73.947', E98º69.630', 2010 m), 14–15 May 2006, D.H. Kavanaugh and R.L. Brett leg. (CAS _DHK-2006-021B). Etymology. The specific name is an adjective from the Latin word cucullata (hood-shaped), and refers to the large hood-shaped conductor of the male palp. Diagnosis. The females of Hamataliwa cucullata sp. nov. and H. torsiva sp. nov. can be separated from all other congeneric species by the covering of the copulatory opening, which is covered with a raised sclerite. The female of this new species H. cucullata can be easily distinguished from H. torsiva sp. nov. by (compare Figs 8, 10, 14 with Figs 19, 21, 23) the larger epigynal depression, the presence of a small hood on the epigynum (absent in H. torsiva sp. nov.) and the absence of a posteriorly sclerotized rim on the epigynum (present in H. torsiva sp. nov.). The male of this new species can be separated from all other congeneric species (e.g. H. foveata Tang & Li, 2012, H. pilulifera Tang & Li, 2012) by the long digitiform VTA and the large, hood-shaped conductor (see Figs 4–6, 12–13). Description. Male (holotype measured): Total length 4.00. Prosoma 1.70 long, 1.45 wide; opisthosoma 2.10 long, 1.30 wide. Carapace grayish brown with grayish white scales. Ocular area black with light gray scales. Eye measurements: AME 0.08; ALE 0.18; PME 0.13; PLE 0.14; AME-AME 0.08; AME-ALE 0.06; PME-PME 0.22; PME-PLE 0.22. Eye row width measurement: I 0.21, II 0.46, III 0.78, IV 0.45. Clypeus height 0.28. Sternum light brown, margin dark gray; chelicera and endites yellowish brown, labium dark gray, chelicera with two promarginal (one large, one small) and one small retromarginal tooth (Fig. 3). Legs light grayish brown with long spines. Leg measurements: I 6.20 (1.80, 2.10, 1.50, 0.80); II 5.90 (1.70, 2.00, 1.40, 0.80); III 4.10 (1.20, 1.30, 1.00, 0.60); IV 4.20 (1.20, 1.40, 1.00, 0.60), leg formula: 1243. Opisthosoma elongated oval, dorsally dark gray with grayish white scales; ventrally gray with longitudinal dark gray markings. Palp (Figs 4–6, 12–13). VTA long digitiform, RTA wider basally, the distal portion beak-shaped in retrolateral view; conductor conspicuous, large-hood-shaped, median apophysis digitiform in lateral view, the distal end of embolus covered by the conductor. Female (one paratype, same data as holotype (HNU_YHY09)): Total length 4.50. Prosoma 1.80 long, 1.50 wide; opisthosoma 2.50 long, 1.80 wide. Carapace dark brown with grayish brown scales. Eye measurements: AME 0.08; ALE 0.18; PME 0.14; PLE 0.14; AME-AME 0.10; AME-ALE 0.05; PME-PME 0.26; PME-PLE 0.24. Eye row width measurement: I 0.25, II 0.52, III 0.88, IV 0.50. Clypeus height 0.32. Chelicera with 2 pro- (one large, one small) and one large retromarginal tooth. Legs dark brown with long spines. Leg measurements: I 6.15 (1.90, 2.20, 1.30, 0.75); II 5.70 (1.70, 2.10, 1.20, 0.70); III 4.65 (1.40, 1.70, 1.00, 0.55); IV 4.50 (1.50, 1.50, 1.00, 0.50), leg formula: 1234. Opisthosoma dorsally brown with blackish brown stripes; ventrally yellow with longitudinal gray markings. Epigynum (Figs 8–11, 14–15). Epigynun with a large central depression, posteriorly with a pair of sclerites covered the copulatory openings. Between the sclerites is a small hood, which can be observed clearly from slightly different angles. Copulatory ducts transparent, twisted; spermathecae globular; fertilisation ducts visible. Variation. Male total length from 4.00–4.80 (n=4), female total length from 3.60–4.00 (n=9). Distribution. China (Yunnan).Published as part of Tang, Guo, Wang, Qiaobing & Peng, Xianjin, 2012, Two new species of the genus Hamataliwa Keyserling, 1887 (Araneae: Oxyopidae) from Gaoligong Mountains, Yunnan, China, pp. 63-70 in Zootaxa 3544 on page 6
Robust H∞ filtering for networked control systems with markovian jumps and packet dropouts
No full textThis paper deals with the H-Infinity filtering problem for uncertain networked control systems. In the study, network-induced delays, limited communication capacity due to signal quantization and packet dropout are all taken into consideration. The finite distributed delays with probability of occurrence in a random way is introduced in the network.The packet dropout is described by a Bernoulli process. The system is modeled as Markovian jumps system with partially known transition probabilities. A full-order filter is designed to estimate the system state. By linear inequality approach, a sufficient condition is derived for the resulting filtering error system to be mean square stable with a prescribed H-Infinity performance level. Finally, a numerical example is given to illustrate the effectiveness and efficiency of the proposed design method.Fangwen Li, Peng Shi, Xingcheng Wang, Hamid Reza Karim
[{HC(CMeNAr)(2)}(2)Al2P4] (Ar=2,6-iPr(2)C(6)H(3)): A reduction to a formal {P-4},4(-) charged species
No full textFamily ideals in an era of low fertility
No full textThis contains the dataset (.dta) and the replication dofile for "Family ideals in an era of low fertility" by Aassve A., Adserà, A., Chang, P.Y., Mencarini, L., Park, H., Peng, C., Plach, S., Raymo, J.M., Wang, S., & Yeung WJ
Himalaphantes pulae Irfan & Zhang & Peng 2022, sp. nov.
No full textHimalaphantes pulae sp. nov. (ẰŨẲĦƦ) Figures 144–146 Types. Holotype ♀, CHINA, Yunnan, Gongshan County, Cikai Township, Dabadi troops place south bank of Pula river, 29 September 2002, Heng-mei Yan leg. (Yan020929). Paratypes: 1♀, same data as holotype (Yan020929); 2♀, Shilali forest station, 27.16519°N, 98.77891°E, alt. 2525m, 01 May 2004, Charles Griswold and D. H. Kavanaugh leg. (CGY20). Etymology. This epithet proposed on the name of Pula river. Diagnosis. Himalaphantes pulae sp. nov. can be distinguished from all other congeners by the scape mid-ventrally with a small tongue-shaped projection and laterally with broad round lobe; posterior median plate posteriorly round; stretcher as wide as long, narrow posteriorly (Fig. 144A–C). Description: Female (holotype, Fig. 145A, B): Total length: 3.76; carapace 1.37 long, 1.08 wide, yellowish brown; cephalic region slightly elevated, with a brown band, lateral sides brown; fovea, cervical and radial grooves distinct. Clypeus 0.21 high. Sternum longer than wide, brown. Labium wider than long, brown. Maxillae long, distal end broad with scopulae. Chelicerae yellowish brown, with three promarginal and five retromarginal teeth. Eye region narrow, AER recurved, PER straight, slightly wider than AER. Eye sizes and interdistances: AME 0.10, ALE 0.09, PME 0.11, PLE 0.10, AME–AME 0.05, AME–ALE, 0.03, PME–PME 0.05, PME–PLE 0.04, AME–PME, 0.08, ALE–ALE 0.48, PLE–PLE 0.51, ALE–PLE contiguous. Legs with annuli; length of legs: I 8.20 (2.38, 2.46, 2.02, 1.34), II 6.72 (1.92, 1.74, 1.93, 1.13), III 4.72 (1.41, 1.46, 1.11, 0.74), IV 6.37 (1.82, 1.88, 1.78, 0.89); leg formula I-II-IV-III. Tm I 0.67 and Tm IV 0.53. Tibial dorsal spine formula: 2-2-2-2. Abdomen 2.40 long, 1.88 wide, oval, yellow, proximal end with a longitudinal band followed by irregular greenish-grey patches extending posteriorly; ventral side greenish-grey, with irregular greenish-grey patches. Epigyne (Fig. 144A–C): Scape mid-ventrally with a small tongue-shaped projection and laterally with broad round lobe; stretcher as wide as long, narrow posteriorly. copulatory openings present in lateral pockets. Entrance grooves sinuous. Posterior median posteriorly round. Spermathecae relatively large, L-shaped. Male. Unknown. Distribution. Known only from the type locality (Fig. 146). Himalaphantes zhangmuensis (Hu, 2001) comb. nov. (Θ‡ẲĦƦ) Lepthyphantes zhangmuensis Hu, 2001: 514, f. 342.1–3 (Df). Distribution. China. Remarks. Lepthyphantes zhangmuensis Hu, 2001, more closely related to the genus Himalaphantes by the combination of the following characters: Scape is relatively broad; spermathcae are large and C-shaped; the posterior median plate is robust and covers the stretcher anteriorly; and the stretcher is large. With all of these characters, L. zhangmuensis shows more proximity to the genus Himalaphantes. Hence, it is proposed here as Himalaphantes zhangmuensis (Hu, 2001) comb. nov.. Genus Houshenzinus Tanasevitch, 2006 (ẠḎƦø) Houshenzinus tengchongensis Irfan & Peng, 2018 (Ŕ ṖẠḎƦ) Figures 147–150 Houshenzinus tengchongensis Irfan & Peng, 2018: 230, figs 1A–E, 2A–B (Df). Material examined. 4♀, CHINA, Yunnan, Tengchong County, Houqiao Township, Guyong Forestry Station, 25.35685°N, 98.30256°E, alt. 1880m, 28 May 2006, Peng Hu leg. (Wang 060528–2); 2♂ 1♀, Gongshan County, Dulongjiang Township, Xianjiudang Village, 27.92247°N, 98.33213°E, alt. 1634m, 4, 5 November 2004, Guo Tang leg. (Tang –04–07); 1♂, Gongshan County, Dulongjiang Township, 2.3–3.3 km of Longyuan Village along Dulongjiang, 28.01347°N, 98.32117°E, alt. 1720m, 02 November 2004, D.H. Kavanaugh leg. (DHK – 2004–068). Diagnosis. The male of Houshenzinus tengzhongensis Irfan & Peng, 2018 resembles H. xiaolongba Zhao & Li, 2014 in having the tibia with small dorsal apophysis, but 0.04, AME–AME 0.02, AME–ALE, 0.02, PME–PME 0.06, PME–PLE 0.03, AME–PME 0.06, ALE–ALE 0.21, PLE–PLE 0.23, ALE–PLE contiguous. Length of legs: I 2.28 (0.65, 0.74, 0.53, 0.36), II 2.06 (0.59, 0.65, 0.50, 0.32), III 1.73 (0.50, 0.53, 0.41, 0.29), IV 2.24 (0.63, 0.75, 0.50, 0.36). Leg formula: I-IV-II-III. Tm I 0.29, Tm IV 0.21.Tibial spine formula: 2-2-1-1. Abdomen 0.82 long, 0.61 wide, brown, dorsally with 2 pairs of transverse dark chevrons, ventral side brown. Palp (Fig. 147A–D): Tibia wider than long, with two retrolateral and one dorsal trichobotheria, distal margin a small dorsal apophysis. Paracymbium J-shaped, distal arm with a bifurcated tip. Tailpiece longer than wide with blunt end. Convector prominent, comma-shaped, distal end longer than wide, extending above the apex of cymbium. Embolus thread-like, extending along the outer margin of convector. Distribution. China. can be distinguished by the tip of convector extending above the tip of cymbium in H. tengzhongensis (Fig.147A, B, D), whereas tip almost equal to the tip of cymbium in H. xiaolongba (Zhao & Li, 2014, figs 44A, B, 45A, B). Description. Male (described for the first time, Fig. 149A–C): Total length: 1.45. Carapace 0.63 long, 0.55 wide, brown; cephalic region modified. Sternum brown, longer than wide. Clypeus 0.21 high. Chelicerae with three promarginal and five retromarginal teeth. Eye sizes and interdistances: AME 0.04, ALE 0.05, PME 0.03, PLE Genus Hylyphantes Simon, 1884 (ûĂƦø) Hylyphantes graminicola (Sundevall, 1830) (ậñûĂ Ʀ) Figures 151–152, 155 Linyphia graminicola Sundevall, 1830: 26 (Dmf). Hylyphantes graminicola Roberts, 1987: 42, fig. 12b (mf); Breitlin g et al. 2015: 71 (S). For full list of publications and synonyms concerning this species see World Spider Catalog (2022). Material examined. 4♀ 1♂, CHINA, Yunnan, Fugong, night, 26.90668°N, 98.86501°E, alt. 1136m, 20 April 2004, Charles Griswold and D. H. Kavanaugh leg. (CGY 00); 4♂ 10♀, Fugong County, Guquan river, 26.86160°N, 98.86903°E, alt. 21 April 2004, Charles Griswold and D. H. Kavanaugh leg. (CGY04); 1♀, Fugong County, 26.89059°N, 98.86528°E, alt. 1220m, 22 April 2004, Charles Griswold and D. H. Kavanaugh leg. (CGY06); 1♂ 2♀, Longyang County, Bawan Township, Ganlin He at Baihua Village, 24.84109°N, 98.89172°E, alt. 702m, beating vegetation and collecting along stream, 1 June 2005, Charles Griswold, Heng-mei Yan and Keji Guo leg. (CGY132); 2♂ 6♀, Tengchong County, Wuhe Township, along Longchuan river at Tongjiazhuang Village, 24.89500°N, 98.67508°E, alt. 1201m, beating riverside and paddy field vegetation, 24 May 2005, Charles Griswold leg. (CGY121); 1♀, Lumadeng, 27.02606°N, 98.86269°E, alt. 1230m, 23 April 2004, Charles Griswold and D. H. Kavanaugh leg. (CGY08); 1♀, Tengchong County, Dahaoping Village, 41–46 km of the road Bawan to Tengchong, 24.55625°N, 99.45155°E, alt. 2416m, 18 October 2003, Guo Tang leg. (Tang 031018); 1 ♂ 1♀, Tengchong County, Jietou Township, Shaba Village, Lijiazai Group, 25.23635°N, 98.42116°E, alt. 1819m, 23 October 2003, Guo Tang leg. (Tang 031023); 1 ♂ 2♀, Tengchong County, Wuhe Township, Daxinzai Village, 24.53342°N, 98.40338°E, alt. 1219m, 28 October 2003, Guo Tang leg. (Tang 031028); 1 ♂ 1♀, Tengchong County, Jietou Township, Shabadi Village, 25.40024°N, 98.70986°E, alt. 1923m, 15 May 2006, Chang-min Yin, Jia-fang Hu and Ming-wei Yang leg. (YHY02); 2♀, Tengchong County, Jietou Township, Zhoujiapo, 25.55844°N, 98.66619°E, alt. 1660m, 16 May 2006, Chang-min Yin, Jia-fang Hu and Ming-wei Yang leg. (YHY03); 8♂ 3♀, Tengchong County, Jietou Township, Qiaotou Village, 25.45931°N, 98.64114°E, alt. 1652m, 17 May 2006, Chang-min Yin, Jia-fang Hu and Ming-wei Yang leg. (YHY04); 2♂ 8♀, Tengchong County, Jietou Township, Xinzhuang Village, 25.44744°N, 98.70964°E, alt. 1950m, 23 May 2006, Chang-min Yin, Jia-fang Hu and Ming-wei Yang leg. (YHY11); 4♀, Tengchong County, Baihai Township, Shuanghai Village, 25.12339°N, 98.55814E °, 1760m, 29 May 2006, Chang-min Yin, Jiafang Hu, Ming-wei Yang and Shao-xian He leg. (YHY14); 1♂ 10♀, Tengchong County, Qingshui Township, Rehai, 24.94861°N, 98.45181°E, alt. 1470m, 1 June 2006, Peng Hu leg. (YHY17); 1♂, Tengchong County, Hehua Township, Dengma Village, 24.92507°N, 98.38573°E, alt. 1113m, 2 June 2006, Peng Hu leg. (YHY22); 2♀, Tengchong County, Wuhe Township, Lianmeng Village, 24.89293°N, 98.67489°E,alt. 1220m, 3June2006, Peng Hu leg. (YHY23); 1♀, Tengchong County, Beihai Township, Beihaishidi, 25.12608°N, 98.55362°E, alt. 1760m, 4 June 2006, Peng Hu leg. (YHY27); 1♀, Tengchong County, Qushi Township, Xiangyanqiao Village, 25.21218°N, 98.57839°E, alt. 1500m, 4 June 2006, Peng Hu leg. (YHY28); 2♂, Tengchong County, Manbang Township, Hongdoushu Village, 24.91805°N, 98.59597°E, alt. 1790m, 6 June 2006, Chang-min Yin, Jia-fang Hu and Ming-wei Yang, Shao-xian He leg. (YHY33); 1♀, Tengchong County, Qushi Township, Longkou Village, 25.28580°N, 98.59128°E, alt. 1478m, 6 June 2006, Peng Hu leg. (YHY36); 4♀, Tengchong County, Jietou Township, Shaba Village, 25.39262°N, 98.70347°E, alt. 1850m, 25 May 2006, Xin-ping Wang and Peng Hu leg. (Hu 060525); 2♀, Tengchong County, Jietou Township, Zhoujiapo Village, 25.53476°N, 98.66897°E, alt. 1620m, 13 May 2006, Chang-min Yin, Xian-jin Peng, Jia-fang Hu and Peng Hu leg. (Peng 060513); 4 ♂ 20♀, Kunming City, Guandu District, Heilongtan, Kunming Institute of Botany Botanical Garden, 25.14035°N, 102.74107°E, alt. 1945m, 18 September 2002, D. H. Kavanaugh and P. E. Marek leg. (DHK –2002–019); 1♀, Gongshan County, Cikai Township, 3.0 km N of Gongshan on Pula river at hydropower diversion dam, 27.77055°N, 98.65446°E, alt. 1500m, 24 September 2002, D. H. Kavanaugh, P. E. Marek and Da-zhi Dong leg. (DHK –2002–027); 1 ♂ 4♀, 20 km N Liuku, along West Bank of Salween river, Genmazhai, 26.06667°N, 98.84833°E, alt. 975m, 21 October 1998, Charles Griswold, D. H. Kavanaugh and Chun-lin Long leg. (98– WB); 1♀, Fugong County, Lumadeng Township, 27.02529°N, 98.86256°E, alt. 1200m, 23 April 2004, Guang-xu Peng leg. (20040423–1); 2♀, Longling County, Zhen’an Township, Bangbie Village, 24.81327°N, 98.83271°E, alt. 1550m, along roadside and a small stream, 24 May 2005, Heng-mei Yan and Ke-ji Guo leg. (GKJ019); 1♂ 3♀, Longyang County, Bawan Township, Nankang Yakou, 24.82893°N, 98.76949°E, alt. 2171m, 25 May 2005, Heng-mei Yan and Ke-ji Guo leg. (GKJ022); 5♂ 4♀, 9 km E SE Pianma, 25.99403°N, 98.66375°E, alt. 2400m, 15–17 October 1998, Charles Griswold, D. H. Kavanaugh and Chun-lin Long leg. (98–EP). Distribution. Europe, Russia (Europe to Far East), China, Korea, Japan, Myanmar, Laos, Thailand, Vietnam.Published as part of Irfan, Muhammad, Zhang, Zhi-Sheng & Peng, Xian-Jin, 2022, Survey of Linyphiidae (Arachnida: Araneae) spiders from Yunnan, China, pp. 1-292 in Megataxa 8 (1) on pages 125-137, DOI: 10.11646/megataxa.8.1.1, http://zenodo.org/record/752657
Haphsa sita Wang & Peng & Wei 2021, comb. n.
No full text4. Haphsa sita (Distant, 1881) comb. n. Cosmopsaltria sita Distant, 1881: 636. Khimbya sita Distant, 1906: 141. Changa sita Lee, 2016: 596. Haphsa stellata Lee, 2009b: 335; Lee, 2016: 596. Distribution. China (Guangxi), India, Vietnam. Remarks. This species was formerly attributed to Changa as the type species by Lee (2016), and the same author synonymized H. stellata Lee, 2009 with Changa sita (Distant, 1881) (Lee, 2016). In the present paper, we remove it to Haphsa based on morphological characterization and phylogenetic analysis (Fig. 4). Lee (2016) also transferred H. jsguillotsi (Boulard, 2005) to Changa, but we confirm it is a member of Haphsa (see below). Accordingly, Changa Lee, 2016 syn. n. is synonymized with Haphsa.Published as part of Wang, Siyue, Peng, Xiaodong & Wei, Cong, 2021, A review of the cicada genus Haphsa Distant, 1905 with the description of one new species from China (Hemiptera: Cicadidae) and a phylogenetic analysis of Haphsa and its allies, pp. 523-538 in Zootaxa 4991 (3) on page 530, DOI: 10.11646/zootaxa.4991.3.5, http://zenodo.org/record/504258
Malaxis henanensis D. H. Peng & K. Yang 2023, sp. nov.
No full textMalaxis henanensis D.H.Peng & K.Yang, sp. nov. (Figs 1, 2) Type:— CHINA. Henan Province: Neixiang County, 1722 m, Baotianman National Nature Reserve, 26 Jul 2021, Peng M001 (FAFU). The new species differs from M. malipoensis in height, inflorescence structure, number of leaves and flowers, colour of flower bracts, long-ovate sepals, longer petals and ovoid, apically narrow lip (Table 1). Terrestrial, erect herbs, 9–25 cm. Leaves usually 2, one larger, base contracted into petiole, clasping, ovate to long ovoid, apex attenuate, 5.0–12.0 × 2.5–5.0 cm. Inflorescence arising from leaf axils, erect, 12–22 cm long, 3.0– 3.5 mm in diameter; racemes 10–15 cm long, 40–80 flowers; floral bracts lanceolate, 1.5–2.0 mm long, yellowish green; pedicel and ovary 3.0– 3.5 mm long, pedicels twisted in a right-handed spiral; fully open flowers 3 mm in diameter, yellowish green; sepals subequal, long-ovate, 1.5–1.8 × 0.7–1.0 mm; petals linear, 1.3–1.5 × 0.2–0.3 mm; lip uppermost (non-resupinate), ovoid, apically narrow, 1.3–1.5 × 0.9–1.2 mm; disk oblate, slightly concave in the middle, both margins hypertrophic and warty, with a short auricles on both sides of the base; column 0.6 mm long; pollinia 4, in 2 pairs, waxy. Phenology:— Flowering July and August. Distribution and ecology:— Known only from Neixiang County, Henan Province, growing in humus-rich soil. Etymology:— Named after Henan Province. Conservation:— Although we investigated areas in the southern and western hilly regions of Henan that would be suitable for this orchid, we did not find plants. The greatest threat to the survival of the new species in the area is human activity and being eaten by wild boars. Notes:— Most Malaxis species have small greenish flowers (Jermakowicz et al. 2022), which also applies to M. henanensis and M. moliponesis (Table 1).Published as part of Shi, Xiao-Ling, Kang, Yang, Liu, Yu-Ying, Tu, Song, Peng, Hong-Jun, Liu, Zhong-Jian & Peng, Dong-Hui, 2023, Malaxis henanensis (Orchidaceae, Malaxideae), a new species from China, pp. 293-295 in Phytotaxa 589 (3) on pages 293-295, DOI: 10.11646/phytotaxa.589.3.9, http://zenodo.org/record/777703
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