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Anion recognition has continuously attracted significant attention due to its important role in environmental and biological sciences. Here, we have designed and synthesized an electron-deficient fluorinated leaning pillar[6]arene 1 that contains two tetrafluoro-benzene units. The electron-deficient fluorinated leaning pillar[6]arene 1 is capable of selectively recognizing iodide anions to form a host-guest complex with 1 : 1 stoichiometry driven by anion-π interactions. Our work ascribes this selective recognition to the preorganization of macrocycles, suitable cavity size, and the effect of anion-π interactions. The innovative application of this macrocycle offers us a new avenue for the design of selective receptors for anions and electron-deficient macrocyclic arenes.

Brain-derived neurotrophic factor (BDNF) regulates neuronal plasticity by targeting the tyrosine kinase B receptor (TrkB) receptor, but limited researches concentrate on the role of BDNF/TrkB signaling in vestibular compensation. In this study, rats with unilateral vestibular dysfunction were established by unilateral labyrinthectomy (UL) and infusion with siBDNF or 7, 8-Dihydroxyflavone (7,8-DHF, a TrkB receptor agonist). The behavioral scores of rats with vestibular deficits were determined and the rotarod test was performed after UL. BDNF and TrkB levels after UL were determined by western blot and quantitative reverse transcription PCR (qRT-PCR). 5-bromo-2ʹ-deoxyuridine (BrdU)-positive cells (newly generated cells) and GAD67-positive cells (GABAergic neurons) were identified by immunohistochemistry. Glial fibrillary acidic protein (GFAP) (astrocyte marker)-positive cells were identified and GABA type A receptor (GABAAR) expression was detected by immunofluorescence. We found that after UL, BDNF and TrkB levels were up-regulated with a maximum value at 4 h, and then progressively down-regulated during 4 h ~ 7 d. Blocking BDNF/TrkB signaling inhibited the recovery from vestibular deficits, decreased the numbers of newly generated cells and astrocytes in medial vestibular nucleus (MVN), inferior vestibular nerve (IVN), superior vestibular nerve (SVN) and lateral vestibular nucleus (LVN), and disrupted the balances of GABAergic neurons and GABAAR expressions in the left (lesioned) side and right (intact) side of MVN, whereas activation of BDNF/TrkB signaling caused opposite results. The current study indicated that BDNF/TrkB signaling avails vestibular compensation, depending on the number of newly generated cells and astrocytes, the rebalance of GABAergic neurons, and GABAAR expression in bilateral MVN.

Vasculogenic mimicry (VM) in lung cancer shortens overall survival (OS) but its’ associations with postoperative recurrence and progression of early non-small cell lung cancer (NSCLC) remain unclear. The purpose of this study was to analyze the association of VM with postoperative recurrence and progression of NSCLC as well as the effect of VM on postoperative recurrence-free survival (RFS). This study included NSCLC patients and detected VM in surgical specimens. The associations of VM with the recurrence and progression were analyzed to assess the effect of VM on postoperative RFS in NSCLC. A total of 80 NSCLC cases were followed up for 3 years. During follow-up, 35 cases showed recurrence and progression where 5 (6.25%) cases had simple local recurrence and the other 30 (37.5%) cases had distant metastasis. The recurrence and progression rates in the first, second, and third years were 12.50%, 23.75%, and 7.50%, respectively. The median RFS was 14.2 months. VM was detected in 30 out of 80 cases and was significantly correlated with tumor differentiation (r = 0.365) and clinical stage (r = 0.374) (both, P = 0.001). Local recurrence of NSCLC was not correlated with VM, unlike distant metastasis (r = 0.598, P < 0.001). Average RFS was significantly longer in NSCLC patients without VM compared with the VM group 3 years post-operation (32 months versus 18 months, log-rank test P < 0.001). Considering these, VM is significantly correlated with postoperative distant metastasis of NSCLC in which it is of a certain value for predicting poor prognosis in NSCLC.

Aim Long noncoding RNAs were widely reported to regulate laryngeal squamous cell carcinoma (LSCC), a prevalent tumor in the head and neck. We aimed to investigate the role of solute carrier organic anion transporter family member 4A1 antisense RNA 1 (SLCO4A1-AS1) in LSCC. Materials & methods CCK-8 and colony formation assays were conducted to examine the viability and proliferation of LSCC cells. The apoptosis of LSCC cells was evaluated using flow cytometry and TUNEL assays. The distribution of SLCO4A1-AS1 in LSCC cells was detected by subcellular fractionation assay. The interaction between molecules was confirmed using luciferase reporter assay. Results SLCO4A1-AS1 was overexpressed in LSCC tissues and cells. Furthermore, silenced SLCO4A1-AS1 repressed the proliferation and facilitated apoptosis of LSCC cells. Mechanistical investigation revealed that SLCO4A1-AS1 was a competing endogenous RNA (ceRNA) to upregulate SETD7 by binding with miR-7855-p. Additionally, SLCO4A1-AS1 positively regulated the Wnt/β-catenin signaling pathway by upregulating SETD7. Rescue experiments demonstrated that SLCO4A1-AS1 promoted LSCC proliferation and inhibited LSCC apoptosis by upregulation of SETD7 and activation of the Wnt/β-catenin pathway. Conclusion SLCO4A1-AS1 promotes proliferation and inhibits apoptosis of LSCC cells by upregulation of SETD7 in a miR-7855-5p dependent way to activate the Wnt/β-catenin pathway.

The detection of volatile aliphatic aldehydes is of significance because of their chemical toxicity, physical volatility and widespread applications in chemical industrial processes. In this work, the direct detection of aliphatic aldehydes is tackled using a pillar[5]arene-based fluorescent supramolecular polymer with vaporchromic behavior. Thin films with strong orange-yellow fluorescence are prepared by coating the linear supramolecular polymer on glass sheets. When the thin films are exposed to aliphatic aldehydes with different carbon chain lengths, they can selectively sensing n-butyraldehyde (C

Parakermania longa sp. nov., the third species of the woodlouse genus Parakermania Vandel, 1973 is described and illustrated from China. The new species differs from the other two congeners in having a different number of dorsal tubercles, and two well-developed ornamentations on the outer sides of the sixth pereonite going beyond the apex of telson. A key to Parakermania species is provided.

Resumo Objetivo Estudar o impacto em linfocitos causado pelo uso da dexmedetomidina associada a morfina para analgesia pos‐toracotomia. Metodo Um total de 118 pacientes utilizando Analgesia Intravenosa Controlada pelo Paciente (AICP) pos‐toracotomia em nosso hospital, de marco de 2016 a julho de 2018, foram selecionados aleatoriamente e divididos em dois grupos: o Grupo Combinado [COM, 57 pacientes que receberam dexmedetomidina (1,0 μg.kg‐1 de peso corporeo) associada a morfina (0,48 mg.kg‐1 de peso corporeo)] e o Grupo Morfina [MOR, 61 pacientes, que receberam somente morfina (0,48 mg.kg‐)]. Os valores dos subconjuntos de linfocitos (CD3+, CD4+ e CD8+) e das celulas NK no sangue periferico desses dois grupos foram medidos por citometria de fluxo FACSCalibur em diferentes momentos do estudo [antes da inducao anestesica (T0), imediatamente apos extubacao traqueal (T1), 12 horas apos a cirurgia (T2), 24 horas apos a cirurgia (T3), 48 horas apos a cirurgia (T4), 72 horas apos a cirurgia (T5) e 7 dias apos a cirurgia (T6)]. As doses de morfina do momento T3 ao T5 e as reacoes adversas entre os dois grupos tambem foram registradas e comparadas. Resultados O nivel de CD3+ e a razao CD4+/CD8+ de T2 a T5, e o nivel de CD4+ e as celulas NK de T3 a T5 do Grupo COM foram significantemente maiores (p Conclusoes Dexmedetomidina combinada com morfina para AICP no periodo pos‐toracotomia pode melhorar a funcao dos linfocitos, reduzir o consumo de morfina e diminuir reacoes adversas durante a analgesia.

The shift in business perspective helps test, extend, and build innovative management theory, then sustainably expand and enhance the understanding of business and management. The development of the global business model makes knowledge transfer not only focus on the process itself, but especially the knowledge transfer of multinational companies (MNCs). Thus, this study is based on the knowledge-based view (KBV) theory, using a sustainable perspective and establishing a spatial model, which includes three aspects: county, company, and employee. It has been mentioned many times in previous research that it is necessary to build such a comprehensive model and completely study the influence factors, while this study is the first to carry out an effective empirical way to test which levels have significant factors that impact the knowledge transfer of Chinese MNCs. Moreover, with the advancement of technology, such as video conference and remote online cooperation, whether human abilities and traits (cultural intelligence) still occupy a specific position, as the conclusions of previous studies have proved, is also a focus of this study. Therefore, this empirical study uses the partial least squares structural equation (PLS-SEM) to test the influence of different aspects on knowledge transfer in Chinese MNCs. Although this study just chose Chinese MNCs as the case, the comprehensive results make up and rediscover some tacit factors of the impact on knowledge transfer, and then support further sustainable research.

Background Since entering the 21st century, a series of public health emergencies such as SARS, influenza A and covid-19 in 2019 have occurred continuously, causing serious damage and loss to people's lives and property. In the process of social transformation and economic globalization, the probability of various new public health events is increasing, the number of group unexplained diseases is increasing, and the cross-border and cross-border impact of the virus is rising, which has brought a lot of new challenges to China's health emergency management. Health emergency management cadres are the key groups to deal with public health emergencies. So far, the existing theoretical research results have not established a unified evaluation standard and detailed evaluation index for the post competence of health emergency management cadres, which will not be conducive to the comparison and application of evaluation results. Based on the psychological test results, this study constructs the competency model of health emergency management cadres and compiles the evaluation scale, so as to provide an objective evaluation tool for comprehensively measuring the post competency of health emergency management cadres. Subjects and Methods Competency elements, also known as competency, refer to the potential characteristics that can distinguish outstanding people from ordinary people in work (or organization and Culture). Grounded theory research is a qualitative method, which refines the concept of the research object and the relationship between its elements by encoding the collected data sentence by sentence. The grounded theory (GT) was used to conduct psychological evaluation and behavioral interviews with health emergency management experts to construct the competency element system of health emergency management cadres. Through exploratory factor analysis, the competency model of health emergency management cadres was constructed. The competency evaluation of health emergency management cadres should not only be based on scientific competency elements, but also establish specific quantitative items to test the competency level of this group. According to the competency model of health emergency management cadres, the corresponding Likert five point evaluation scale is compiled in order to provide a management tool for the evaluation of the competency of health emergency management cadres. At the same time, SCL-90 scale was used to measure the psychological state of these cadres. Results The competency model of health emergency management cadres was composed of three competency dimensions: specialization, professional quality and professional ability, and 16 competency dimensions. On this basis, the competency evaluation scale of health emergency management cadres was compiled. The final scale contains 43 items. Conclusion The scale has good reliability, validity and fit. It is a reliable, effective and applicable scale. It can not only be used as a tool to evaluate the post competence of health emergency management cadres, but also provide a scientific basis for the selection, training and self-assessment of health emergency management cadres. In short, we should carry out relevant combination of industry and education according to our own advantages and characteristics. Make clear the goal of motivation by example, and regularly hold activities such as successful model sharing, experience introduction and project display, so as to set a successful example for positive emotions, clarify the specific objectives of the activities, form a strong psychological momentum, stimulate internal potential and help the realization of positive behavior. We should strengthen professional guidance, give full play to the concentration of professionals, high intelligence, professional knowledge in business fields, and give full play to the advantages of talents and intelligence. We can organize experts and scholars to establish a professional bid winning guidance team, give full play to the business projects of experts and scholars in their respective fields, and carry out scientific research on relevant projects. Acknowledgements Fund Project: 1. CAAC safety capability project: research on theoretical system of civil aviation supervision with Chinese characteristics; 2.CAAC educational talent project:(Project No.:MHJY2022018) construction of competency model and assessment scale development for senior civil aviation inspectors; 3.Special fund project of Central Universities basic scientific research business (Project No.: J2021-114): Competency model construction and evaluation scale development of civil aviation health emergency management cadres.

The present paper adds two new species to the genus Gargela Walker, 1864 from China: Gargela polyacantha Li, sp. nov. and G. grandispinata Li, sp. nov. The adults and genital structures of ...

Signcryption is a basic cryptographic primitive that simultaneously captures the functions of encryption and signature. To realize comprehensive information security against quantum computing attacks, lattice-based signcryption schemes have been successively proposed. However, the performance of signcryption schemes should be improved in the lattice setting. An efficient lattice-based signcryption scheme in the standard model is proposed in this paper. Under the ring learning with errors (RLWE) assumption and the ideal short integer solution (ISIS) assumption, the proposed signcryption scheme achieves indistinguishability against adaptive chosen ciphertext attacks (IND-CCA2) and existential unforgeability under an adaptive chosen-message attack (EUF-ACMA). Our scheme not only reduces the communication and computational overhead but also realizes a new design that combines the partitioning technique with the idea of tag-based key encapsulation. The performance analysis results show that our scheme is more efficient than previous lattice-based signcryption schemes in the standard model.

The genus Microchilo of the subfamily Crambinae is reviewed from China. Two species are described as new to science: Microchilo landryi sp. nov. and M. nussi sp. nov. Images of adults and genitalia of the new species are illustrated, and a key of the species known in China is provided. LSID urn:lsid: zoobank.org :pub:74B34A6E-87C3-487B-AD94-1167F1283E74.

Immune checkpoint inhibitors (ICIs) such as anti-programmed death-1 (PD-1) and its ligand PD-L1 and anti-cytotoxic T-lymphocyte antigen 4 (CTLA-4) monoclonal antibodies, are involved in T cell-mediated immune response augmentation and promote anti-tumor immunity. Cancer patients treated with combination of immunotherapy, chemotherapy, radiotherapy, and targeted therapy exhibit superior clinical outcomes and tolerance compared with patients treated with monotherapies. However, immutherapy is associated with several concomitant immune-related adverse events (irAEs). For instance, IrAEs interferes with function of gastrointestinal tract, endocrine, dermatological, nervous system and musculoskeletal systems. ICIs-associated pancreatic injury might causes decrease in endocrine and exocrine pancreatic function, resulting in metabolic and nutritional disorders. Clinicians who administer immune checkpoint inhibitors to cancer patients are diagnosed with hyperglycemia, abdominal pain and steatorrhea. Currently, the precise mechanism of ICIs-associated pancreatic injury has not been fully explored. This paper summarizes incidence, diagnosis, clinical characteristics, potential mechanisms, and treatment management patterns of ICIs-associated pancreatic AEs based on previous studies. In addition, possible management approaches of these adverse effects are presented in this paper. in the findings summarized in this paper lay a basis for management of ICIs-associated pancreatic AEs and expanding future immunotherapy applications.

The development of new strategies for the construction of highly selective and stable vapochromic system is still in great demand. Here, we present a highly selective and stable vapochromic system constructed by pillar[5]arene-based host–guest interactions between a pillar[5]arene (EtP5) and a phenazine derivative. The present material in this work showed specific selective responsiveness to chloroform vapor. The resultant dark orange solid sample was highly stable, which can maintain the color in air for at least two months at room temperature. Moreover, CHCl3 vapor responsive thin film and light-emitting diode (LED) was successfully prepared by coating the EtP5⊃1 complex on a glass sheet and a commercially available UV-LED. This work provided a new approach for the design and construction of selective and stable vapochromic systems with obvious color changes using pillar[5]arene-based host–guest interactions.

Objective This study aimed to investigate the impact of post-thoracotomy analgesia with dexmedetomidine and morphine on immunocytes. Methods A total of 118 patients with post-thoracotomy Patient-Controlled Intravenous Analgesia (PCIA) in our hospital from March 2016 to July 2018 were randomly selected and divided into the Composite (COM) Group (57 patients administered with dexmedetomidine [1.0 µg.kg-1 body weight] and morphine [0.48 mg.kg-1 body weight]) and the Morphine (MOR) group (61 patients administered with morphine [0.48 mg.kg-1]). The values of lymphocyte subsets (CD3+, CD4+, and CD8+) and Natural Killer cells in the peripheral blood of these two groups were detected by FACSCalibur flow cytometry at different time points (before anesthesia induction [T0], immediately after tracheal extubation [T1], 12 hours after surgery [T2], 24 hours after surgery [T3], 48 hours after surgery [T4], 72 hours after surgery [T5], and 7 days after surgery [T6]). The doses of morphine at T3 to T5 and the adverse reactions between the two groups were also recorded and compared. Results The CD3+ level and the CD4+/CD8+ ratio at T2 to T5 and the CD4+ level and NK cells at T3 to T5 were significantly higher in the COM Group than in the MOR Group (p< 0.05). The postoperative morphine dose and the incidence of postoperative itching, nausea, and vomiting were significantly lower in the COM Group than in the MOR Group (p< 0.05). Conclusions Dexmedetomidine combined with morphine for post-thoracotomy PCIA can improve the function of immunocytes, reduce morphine consumption, and reduce the adverse reactions during analgesia induction. Resumo Objetivo Estudar o impacto em linfócitos causado pelo uso da dexmedetomidina associada à morfina para analgesia pós-toracotomia. Método Um total de 118 pacientes utilizando Analgesia Intravenosa Controlada pelo Paciente (AICP) pós-toracotomia em nosso hospital, de março de 2016 a julho de 2018, foram selecionados aleatoriamente e divididos em dois grupos: o Grupo Combinado [COM, 57 pacientes que receberam dexmedetomidina (1,0 µg.kg-1 de peso corpóreo) associada à morfina (0,48 mg.kg-1 de peso corpóreo)] e o Grupo Morfina [MOR, 61 pacientes, que receberam somente morfina (0,48 mg.kg-)]. Os valores dos subconjuntos de linfócitos (CD3+, CD4+ e CD8+) e das células NK no sangue periférico desses dois grupos foram medidos por citometria de fluxo FACSCalibur em diferentes momentos do estudo [antes da indução anestésica (T0), imediatamente após extubação traqueal (T1), 12 horas após a cirurgia (T2), 24 horas após a cirurgia (T3), 48 horas após a cirurgia (T4), 72 horas após a cirurgia (T5) e 7 dias após a cirurgia (T6)]. As doses de morfina do momento T3 ao T5 e as reações adversas entre os dois grupos também foram registradas e comparadas. Resultados O nível de CD3+ e a razão CD4+/CD8+ de T2 a T5, e o nível de CD4+ e as células NK de T3 a T5 do Grupo COM foram significantemente maiores (p< 0,05) quando comparados ao Grupo MOR. A dose de morfina no pós-operatório e a incidência de prurido, náusea e vômito no pós-operatório foram significantemente menores no grupo MOR (p< 0,05). Conclusões Dexmedetomidina combinada com morfina para AICP no período pós-toracotomia pode melhorar a função dos linfócitos, reduzir o consumo de morfina e diminuir reações adversas durante a analgesia.

A new species of the family Limacodidae, Pseudohampsonella lii sp. nov., is described from Tibet of China based on morphological characters and 658 bp of COI sequence data. It represents a fifth species of the genus. Images of adult and genitalia of the new species, and the key and distribution map of the genus are provided.

The genus Eudonia is rarely recorded in Tibet despite having a wide occurrence in the plateau. In the taxonomy of the genus, the morphological characters are insufficient to delimit the closely related congeners due to the subtly interspecific differences and conspicuously intraspecific variability. In this study, the Tibetan species are studied with an integrative approach using molecular data and morphological characters. It is found that the number of Eudonia species in Tibet accounts for about 20% of the total species previously catalogued for the genus in China. Five species are described as new to science: Eudonia galonglaensis Li, sp. nov., E. varians Li, sp. nov., E. triangulata Li, sp. nov., E. angusta Li, sp. nov., and E. bomiensis Li, sp. nov. The potential distribution of Chinese Eudonia is predicted and illustrated using MaxEnt and DIVA-GIS. The results reveal the exceptionally high species diversity of Eudonia in Tibet for the first time, demonstrate that the integrative morphological and molecular approach is highly effective for resolving the difficult-to-distinguish morphologies, and predict the region of China to the south of 35°N and to the east of 95°E as having potentially high Eudonia species diversity. http://www.zoobank.org/urn:lsid:zoobank.org:pub:EA3C5D21-9674-46E4-838D-48D5A098314B

Four species from Galongla Snow Mountain, southeastern Tibet of China are revealed as members of the genus Scoparia by combining DNA barcoding (658 bp of the mitochondrial gene cytochrome c oxidase subunit I, COI) and morphological characters. Three species are described as new to science: S. varians Li, sp. nov., S. nussi Li, sp. nov. and S. lii Li, sp. nov. The female of S. simplicissima Li is described for the first time. All species are described and illustrated, including the habitat, characters of intraspecific variability and sexual dimorphism. A map showing the localities on the Tibetan Plateau, where more than 40% of Chinese Scoparia species are endemic, is also provided. The results suggest the genus Scoparia has high species diversity on the Tibetan Plateau and may exhibit potential for specific adaptation to high plateau environments.

Lucasioides nudus sp. n. is described from Jiangxi Province, China. The new species can be diagnosed by the cephalon having a well-developed median lobe, the pereonite 1 with acutely postero-lateral corners and sinuous posterior margin of epimeron, the male pleopod 1 endopod without setules, and the bilobed exopod with the outer lobe much shorter and broader than the acute triangular inner lobe.

Purpose: The current study examined quality of life, progression of disease, and survival rate during chemotherapy in newly diagnosed non-small cell lung cancer (NSCLC) patients with depression (n=48) and without depression (n=78). Further, the study explored the hypothesis that the survival benefit resulted from the chemotherapy of docetaxel and cisplatin (the DC regimen). Patients and Methods: In total, 126 patients with newly diagnosed NSCLC participated in a cross-sectional study of DC chemotherapy integrated with standard oncology care in depression and non-depression groups. The health-related quality of life (HR-QOL) was assessed using the quality of life questionnaire for Chinese cancer patients receiving chemobiotherapy (QLQ-CCC). Depression was self-rated using the Zung Self-Rating Depression Scale (Z-SDS). Both HR-QOL and Z-SDS were completed before the first and after the last cycle of chemotherapy. Association between depression and quality of life, treatment responses, adverse effects and survival rate was considered positive at the significance level of p

A multicorrugation-pitch-modulated (MCPM) distributed-feedback semiconductor laser is experimentally demonstrated for the first time to achieve stable single longitudinal mode (SLM) performance. The MCPM structure was equivalently realized based on a sampled grating using reconstruction equivalent chirp (REC) technology. The proposed REC-MCPM structure can effectively flatten the optical intensity distribution along the laser cavity, leading to the strong suppression in spatial hole burning. In addition, the REC-MCPM grating structures can be readily fabricated using conventional holographic lithography combined with low-cost standard micrometer-level photolithography. A proof-of-principle study both in a simulation and an experiment is presented in this paper. The fabricated 400- $\mu\hbox{m} $ -long REC-MCPM semiconductor laser shows very good SLM performance with SMSRs being more than 42 dB under test conditions of a large injection current range (up to 300 mA) and different ambient temperatures.

The genus Eudonia Billberg, 1820 from the Hailuogou Glacier area, China is studied for the first time. Four species are recognized including three new to science as follows: E. glaciaria Li, sp. n., E. lii Li, sp. n., E. chuanensis Li, sp. n. and E. hexamera Li et al., 2012. Images of adults and genitalia of the species are provided.

A detailed theoretical analysis of the lasing wavelength precision of the DFB laser array based on a reconstruction-equivalent-chirp (REC) technique is presented. Experimental results of the eight-wavelength DFB laser array with equivalent π phase shift (π-EPS) and four-wavelength DFB laser array with equivalent three shifts are also given. High lasing wavelength precision was obtained. This paper demonstrates that the REC technique is a promising way for fabricating the multiwavelength DFB laser array with low cost and high yield.

Four new species of the genus Calamotropha Zeller are described from China: Calamotropha duofurcata sp. nov., Calamotropha abrupta sp. nov., Calamotropha aequilata sp. nov. and Calamotropha unispinea sp. nov. Three species are redescribed: Calamotropha formosella Bleszynski, 1961, Calamotropha josettae Bleszynski, 1961 and Calamotropha melli (Caradja and Meyrick, 1933). Calamotropha latella (Snellen, 1890) is newly recorded for China. Images of adults and illustrations of genitalia of the new species and the redescribed species are provided. A checklist and a key to the known Chinese species are presented, along with a map showing the distribution of these species.

A III-V on Si hybrid integration is demonstrated by using Si slab waveguides with two parabolic reflective facets to increase the alignment tolerance between flip-chip bonded lasers and modulators. DC and high speed test results of the integrated transmitter are included.

A new species Chrysoteuchia ningensis Li, sp. n. is described from China. The new species is similar to C. pyraustoides and C. shafferi by the phallus produced to a long and thin apical spine in the male genitalia. Images of both adult and genitalia of the new species are provided, along with two topographic maps of China showing the localities where Chrysoteuchia are recorded. Type specimens are deposited in the Insect Museum, Jiangxi Agricultural University, Nanchang, China.

The genus Metaeuchromius Bleszynski is studied in China, with four species treated in this paper. Metaeuchromius singulispinalis sp. nov. and M. anacanthus sp. nov. are described as new; M. inflatus Schouten, 1997 is newly recorded for China; and the female of M. flavofascialis Park, 1990 is described for the first time. Images of the adults and genitalia are provided, along with keys to all the known species based on male and female genitalia.

Two new species of the genus Roxita Bleszynski are described from China: R. acutispinata sp. nov. and R. capacunca sp. nov. Images of the adults and the genitalia are provided, along with a key of the known world species.