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47 results for “Monochamus”
Fig. 1 in The ectoparasitoid Scleroderma guani (Hymenoptera: Bethylidae) uses innate and learned chemical cues to locate its host, larvae of the pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae)
Fig. 1. Numbers of naïve Scleroderma guani females responding to various odor sources presented in pairs in a Y-tube olfactometer. W = wood diet, WF = mixture of wood diet and Monochamus alternatus frass, S = sawdust from M. alternatus galleries, L = 10 M. alternatus 3rd instars, and A = clean air. *: P ≤ 0.05, **: P ≤ 0.01. Numbers indicate numbers of wasps responding.
Fig. 4 in The ectoparasitoid Scleroderma guani (Hymenoptera: Bethylidae) uses innate and learned chemical cues to locate its host, larvae of the pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae)
Fig. 4. Numbers of Scleroderma guani females responding to the odor of Monochamus alternatus 3rd instars (L) versus clean air (A) in a Y-tube olfactometer. Females were either naïve (N), previously exposed to gallery sawdust (S), or with previous exposure to the odor of M. alternatus larvae (L). *: P ≤ 0.05, **: P ≤ 0.01.
Fig. 3 in The ectoparasitoid Scleroderma guani (Hymenoptera: Bethylidae) uses innate and learned chemical cues to locate its host, larvae of the pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae)
Fig. 3. Numbers of naïve Scleroderma guani females responding to the odor of 10 Monochamus alternatus 1st, 3rd, or 5th instars (L) versus clean air (A) in a Y-tube olfactometer. *: P ≤ 0.05, **: P ≤ 0.01.
Fig. 2 in The ectoparasitoid Scleroderma guani (Hymenoptera: Bethylidae) uses innate and learned chemical cues to locate its host, larvae of the pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae)
Fig. 2. Relative proportions of organic compounds identified in headspace volatiles from Monochamus alternatus larvae and a mixture of wood diet, sawdust, and frass.
Fig. 1 in Changes in midgut gene expression following Bacillus thuringiensis (Bacillales: Bacillaceae) infection in Monochamus alternatus (Coleoptera: Cerambycidae)
Fig. 1. Comparison of the gene expression levels between the control (CK) and Bt-exposed Monochamus alternatus. To compare the gene expression levels between the 2 libraries, each library was normalized to 1 million tags. The x-axis represents log10 of the reads per kb per million reads (RPKM) of the control sample, and the y-axis indicates log10 of the RPKM of the treated sample. The expression level of each gene is included in the volcano plot. The red dots represent transcripts that are more prevalent in the Bt-treated library, the green dots show those present at a lower frequency in the Bt-treated library, and the blue dots indicate transcripts that did not change significantly. The parameters "FDR <0.001" and "absolute value of log2(Treated/Control) ≥ 1" were used as the thresholds to judge the significance of the gene expression difference.
Figures 1–2. 1 in Sclerodermus alternatusi (Hymenoptera: Bethylidae), a new species from China, parasitizing Monochamus alternatus (Coleoptera: Cerambycidae)
Figures 1–2. 1. Authors are peeling bark of infested pine tree by Monochamus alternatus to investigate the parasitoids in the Wildlife Park forest, suburbs of Kunming City, Yunnan Province, 3.VI.2010; 2. Larvae and a female adult of Sclerodermus alternatusi Yang, sp. nov. parasitizing on the larva of Monochamus alternatus found in one of the cerambycid gallery.
Figures 16–24. 16 in Sclerodermus alternatusi (Hymenoptera: Bethylidae), a new species from China, parasitizing Monochamus alternatus (Coleoptera: Cerambycidae)
Figures 16–24. 16. Sclerodermus alternatusi Yang, sp. nov., alate male. 16. Whole body in dorsal view; 17. Whole body in lateral view; 18. Head and antennae in dorsal view; 19. Head and antennae in lateral view; 20. Antenna in lateral view; 21. Mesosoma in dorsal view; 22. Fore- and hindwing; 23. Metasoma in dorsal view; 24. Metasoma in ventral view.
Figures 11–15 in Sclerodermus alternatusi (Hymenoptera: Bethylidae), a new species from China, parasitizing Monochamus alternatus (Coleoptera: Cerambycidae)
Figures 11–15. Sclerodermus alternatusi Yang, sp. nov., apterous female. 11. Whole body in dorsal view; 12. Head and antennae in dorsal view; 13. Mesosoma in dorsal view; 14. Metasoma in dorsal view; 15. Metasoma in ventral view (the arrow pointing the two lines of setae on sternum 1).
Figures 3–10 in Sclerodermus alternatusi (Hymenoptera: Bethylidae), a new species from China, parasitizing Monochamus alternatus (Coleoptera: Cerambycidae)
Figures 3–10. Sclerodermus alternatusi Yang, sp. nov., alate female. 3. Whole body in dorsal view; 4. Head and antennae in dorsal view; 5. Head, antennae in lateral view; 6. Antenna in lateral view; 7. Mesosoma in dorsal view; 8. Fore- and hind- wing; 9. Metasoma in dorsal view; 10. Metasoma in ventral view.
Simulating the dispersal of Monochamus galloprovinciallis : R script of the dispersal model and video of the simulation
<p>This folder contains the R script to simulate the dispersal of Monochamus galloprovincialis from an individual-based model and the resulting video. This study was conducted in the frame of the FP7 project called "REPHRAME" and a working group of ANSES (French Agency for Food, Environmental and Occupational Health & Safety).</p> <p>This material complements the following publication:</p> <p>Robinet C, David G, Jactel H (2019) Modeling the distances traveled by flying insects based on the combination of flight mill and mark-release-recapture experiments. Ecological Modelling, 402: 85-92.<br> https://doi.org/10.1016/j.ecolmodel.2019.04.006</p>
Impact of intercept trap type on plume structure: a potential mechanism for differential performance of intercept trap designs for Monochamus species
<p>Studies have demonstrated that semiochemical-baited intercept traps differ in their performance for sampling insects, but we have an incomplete understanding of how and why intercept trap design effects vary among insects. This can significantly delay both the development of new and optimization of existing survey and detection tools. The development of a mechanistic understanding of why trap performance varies within and among species would mitigate this delay. The primary objective of this study was to develop methods to characterize and compare the odor plumes associated with intercept traps that differ in their performance for forest Coleoptera. We released CO<sub>2</sub> and measured fluctuations of this tracer gas from 175-point locations arranged in a 2-by-3-by-2-m grid cuboid downwind of a standard multiple-funnel, a modified multiple-funnel, a panel, a canopy malaise trap, and a blank control (i.e., no trap) in a greenhouse. Significant differences in trapping efficacy between these different trap designs were observed for <i>Monochamus scutellatus</i> (Say) and <i>Monochamus notatus</i> (Drury) in a field trial. Significant differences were also observed in how CO<sub>2</sub> accumulated in time at different positions downwind among these different trap designs. Turbulent dispersion is the dominant force structuring odor plumes and creates intermittency in the odor plume that is important for sustained upwind flight in insects. Methodological and instrumental limitations resulted in the inability to determine instantaneous plume structures and vortex shedding frequencies for different intercept trap designs. Although we observed differences in the odor plumes emanating downwind of the different intercept trap designs, we were unable to reconcile these differences with capture rates of the different trap designs for <i>M. scutellatus</i> and <i>M. notatus</i>.</p>
Effects of temperature on reproduction and development of Cyanopterus ninghais (Hymenoptera: Braconidae), a larval parasitoid of Monochamus alternatus (Coleoptera: Cerambycidae)
<p><em>Cyanopterus ninghais</em> (Hymenoptera: Braconidae), a newly discovered gregarious ectoparasitoid, is a promising biological control agent against the third-fifth instar larvae of the Japanese pine sawyer,<em> Monochamus alternatus </em>(Coleoptera: Cerambycidae). Effects of constant ambient temperatures (17, 20, 23, 26, 29, and 32 ℃) on the reproduction and development of the parasitoid were determined in the laboratory. We investigated the reproductive parameters of <em>C. ninghais</em>, including the pre-oviposition period, parasitism rate, offspring number, emergence rate, and sex ratio, at these six temperatures using 4th-instar larvae of <em>M. alternatus </em>as hosts, and the developmental duration of each developmental stage (egg, larva, and pupa) and generation at six temperatures was also measured. The pre-oviposition periods of <em>C. ninghais</em> decreased gradually with increasing temperatures. Both the parasitism rates and the number of offspring exhibited a parabolic trend in relation to increasing temperatures. Temperature did not significantly affect the emergence rate and sex ratio of progeny. The duration of each developmental stage was inversely correlated with temperature within the range of 20 to 32 ℃. We concluded that temperatures in the range of 26 to 29 ℃ are the most suitable for the development and reproduction of <em>C. ninghais</em>. These findings provide important information for improving the artificial rearing efficiency and field release of this parasitoid under different temperature conditions.</p>
Fig. 2. A in Changes in midgut gene expression following Bacillus thuringiensis (Bacillales: Bacillaceae) infection in Monochamus alternatus (Coleoptera: Cerambycidae)
Fig. 2. A plotted regression for RT-qPCR validation analysis.
Monochamus galloprovincialis presence/absence data
<p>To delineate the distribution range of <em>Monochamus galloprovincialis </em>in Europe, a species distribution model was developed, based on pheromone-trap catches (negative and positive) from 4914 locations in 29 European countries between 2008 and 2019. The compiled dataset consists of 4914 observations (negative or positive) defined by the traps and lures used, the geographical coordinates of the traps, the number of beetles caught, the contributor and the year.</p>
Effects of temperature on reproduction and development of Cyanopterus ninghais (Hymenoptera: Braconidae), a larval parasitoid of Monochamus alternatus (Coleoptera: Cerambycidae)
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Data from: A conceptual model for the eiapause intensity curve and termination in overwintering Japanese Pine Sawyer larvae, <em>Monochamus alternatus</em> (Coleoptera: Cerambycidae)
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Data from: Requirement of group I lytic polysaccharide monooxygenase for turnover of chitinous cuticle during molting in two forest pest beetles, <em>Monochamus alternatus</em> and <em>Psacothea hilaris</em>
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Impact of intercept trap type on plume structure: a potential mechanism for differential performance of intercept trap designs for Monochamus species
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Figure 5 in A new unique species of Mucroseius Lindquistı 1962 (Acari: Mesostigmata: Melicharidae) mites associated with sawyer beetles (Cerambycidae: Monochamus Dejeanı 1821) from the Palaearctic Region
Figure 5. Mucroseius insolitus sp. nov., female, SEM micrographs. (a) dorsal view; (b) ventral view; (c) epistome; (d) tarsus IV.
Figure 4 in A new unique species of Mucroseius Lindquistı 1962 (Acari: Mesostigmata: Melicharidae) mites associated with sawyer beetles (Cerambycidae: Monochamus Dejeanı 1821) from the Palaearctic Region
Figure 4. Mucroseius insolitus sp. nov., female. (a–d) legs I–IV, respectively, ventral view. Scale bar: 100 μm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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