230 research outputs found

    Los Cicindélidos del grupo de especies “hybrida” (Coleoptera, Carabidae, Cicindelinae). III. Revisión taxonómica de las especies ibéricas del complejo Cicindela lagunensis Gautier, 1872

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    On the base of morphological as well as male’s and female’s genitalia peculiarities of four subspecies of the Iberian tiger beetle Cicindela lagunensis Gautier, 1872 (according to Gebert, 1995) their taxonomic status is discussed. There are three separate species which habitat in the Iberian Peninsula: C. lagunensis, C. iberica Mandl, 1935, stat. nov. and C. lusitanica Mandl, 1935, bona spec., stat. nov. C. lusitanica includes two subspecies: C. l. lusitanica Mandl, 1935 and C. l. silvaticoides W. Horn, 1937 comb. nov. The lectotypus and paralectotypus of Cicindela (s. str.) hybrida silvaticoides W. Horn, 1937 were designated. Morphological characters and genitalia of both sexes are described. The geographic distribution is given. The results of phylogenetic analysis are discussed. The Iberian species of “lagunensis”-complex make a monophyletic group with C. hybrida Linnaeus, 1758, and this group has a sister group which was made up by C. sahlbergii Fischer von Waldheim, 1824 and other related species. A key for identify the Iberian species of “lagunensis”-complex is given.Se discute el estatus taxonómico de cuatro subespecies de Cicindela lagunensis Gautier, 1872 (sensu Gebert, 1995) sobre la base tanto de la morfología externa como de las características de las genitalias masculina y femenina. En la Península Ibérica viven tres especies de Cicindela: C. lagunensis, C. iberica Mandl, 1935, stat. nov. y C. lusitanica Mandl, 1935, bona spec., stat. nov. Cidindela lusitanica incluye dos subespecies: C. l. lusitanica Mandl, 1935 y C. l. silvaticoides W. Horn, 1937 comb. nov. Se designan lectotipo y paralectotipos de Cicindela (s. str.) hybrida silvaticoides W. Horn, 1937; se describen los caracteres morfológicos y la genitalia de ambos sexos y se proporciona la distribución geográfica de la subespecie. El análisis filogenético muestra que las especies ibéricas del complejo “lagunensis” constituyen un grupo monofilético junto a C. hybrida Linnaeus, 1758, y este grupo es un grupo hermano del integrado por C. sahlbergii Fischer von Waldheim, 1824 y otras especies próximas. Por último, se proporciona una clave para identificar a las especies ibéricas del complejo “lagunensis”

    The Influence Of Work Environment, Work Motivation And Work Discipline On The Performance Of Non Pns Employees Of The Class I Non TPI Tangerang Immigration Office

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    This research aims to determine the effect of the work environment, work motivation and work discipline on the performance of non-civil servant in Imigration Office Class I Non TPI Tangerang. The sampling technique uses saturated samples with 61 respondents from Non-Civil Servant in Immigration Office Class I Non TPI Tangerang. The data collection method used in this study is the census method. Data analysis technique used in this study is Multiple Linear Regression Analysis. The results of this study indicate that the work environment, work motivation and work discipline simultaneously have a positive and significant effect on employee performance. Work environment, work motivation and work discipline partially have a positive and significant influence on the performance of non- civil servant in Immigration Office class I Non TPI Tangerang with a significant value of less than 0.05. The Work Discipline is a dominant factor affecting employee performance

    Notes on the tiger beetles (Coleoptera: Carabidae: Cicindelinae) of Vietnam. 135. Contribution towards the knowledge of Cicindelinae

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    Distributional records of the 177 tiger beetle species and subspecies known for Vietnam are given together with a key and habitus photos (Coleoptera: Carabidae: Cicindelinae). Tricondyla (Tricondyla) macrodera abruptesculpta Horn, 1925, Protocollyris festiva Naviaux, 2008, Neocollyris (Brachycollyris) purpureomaculata borea Naviaux, 1994, Neocollyris (Brachycollyris) torosa Naviaux, 2010, Neocollyris (Leptocollyris) rogeri Shook and Wu, 2006, Neocollyris (Leptocollyris) laosensis Naviaux, 1999, Neocollyris (Stenocollyris) rubens (Bates, 1878), Neocollyris (Pachycollyris) tricolor Naviaux, 1991, Neocollyris (Pachycollyris) panfilovi Naviaux and Matalin, 2002, Therates rugulosus Horn, 1900, Therates bannapecolus Sawada and Wiesner, 1999, Calochroa interruptofasciata flavolineata (Chaudoir, 1865), Cylindera (Ifasina) cyclobregma Acciavatti and Pearson, 1989, Cylindera (Ifasina) decolorata (Horn, 1907), Cylindera (Ifasina) humillima (Gestro, 1893) and Cylindera (Eugrapha) elisae elisae (Motschulsky, 1859) are reported for the first time in the fauna of Vietnam. Neocollyris (Isocollyris) septentrionalis Naviaux, 1999, Neocollyris (Leptocollyris) linearis tenuicornis (Chaudoir, 1864), Neocollyris (Pachycollyris) aptera apicalis (Chaudoir, 1864), Neocollyris (Pachycollyris) contracta (Horn, 1905), Therates dimidiatus wallacei Thomson, 1857, Cylindera (Cylindera) pseudocylindriformis Horn, 1913, Cylindera (Ifasina) viridilabris (Chaudoir, 1852), Cylindera (Ifasina) psilica psilica (Bates, 1866), Cylindera (Eugrapha) venosa (Kollar, 1836) and Myriochila (Myriochila) undulata (Dejean, 1825) are excluded from the fauna of Vietnam

    To fly or not to fly : Factors influencing the flight capacity of carabid beetles (Coleoptera: Carabidae)

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    This review considers factors affecting the flight capacity of carabid beetles and the implications of flight for carabids. Studies from the Dutch polders in particular show that young populations of carabids consist predominantly of macropterous species and macropterous individuals of wing-dimorphic species. Also populations of wing-dimorphic carabid species at the periphery of their geographical range contain high proportions of macropterous individuals. However, studies from Baltic archipelagos show that older populations of even highly isolated island habitats contain considerable proportions of brachypterous species and individuals. This suggests that macroptery is primarily an adaptation for dispersal and that there exists a mechanism for subsequently reducing the ratio of macropterous to brachypterous species under stable conditions, due to the competitive advantage of brachyptery. Populations in isolated habitats, such as islands and mountains, have high proportions of brachypterous species. Many macropterous species do not possess functional flight muscles. Species of unstable habitats, such as tree canopies and wet habitats, are mostly macropterous. Brachypterous species tend to disappear from disturbed habitats. There is uncertainty regarding the extent to which carabid dispersal is directed and how much passive. Both Den Boer and Lindroth recognized that mostly macropterous individuals of macropterous and wing-dimorphic species disperse and found new populations, after which brachyptery tends to rapidly appear and proliferate in the newly founded population. It is most likely that the allele for brachyptery would arrive via the dispersal of gravid females which had mated with brachypterous males prior to emigration. Whilst many studies consider wing morphology traits of carabid beetles to be species-specific and permanent, a number of studies have shown that the oogenesis flight syndrome, whereby females undertake migration and subsequently lose their flight muscles by histolysis before eventually regenerating them after reproducing, has been reported for a growing number of carabid species. Wing morphology of carabid beetles clearly offers strong potential for the study of population dynamics. This field of study flourished during the 1940's to the late 1980's. Whilst a considerable amount of valuable research has been performed and published, the topic clearly holds considerable potential for future study.Peer reviewe

    Estimating the cutting force when skiving with a radius cutter

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    The paper considers the method of determining the components of the cutting force under cutting completed with a radius cutter. The authors provide the design of the experimental study. The authors provide the data on the cutting force change in the process of turning with a radius cutter according to the cutting edge inclination, cutting depth and supply obtained experimentally and calculated analytically. The paper also provides the results of experimental work approximation and theoretical error checking related to experimental data

    Detection of Bactrocera oleae (Diptera: Tephritidae) DNA in the gut of the soil species Pseudoophonus rufipes (Coleoptera: Carabidae)

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    Pest control service provided by natural enemies of Bactrocera oleae, the key pest of the olive tree, is nowadays recognized as fundamental. B. oleae has developed resistance to common insecticides, and negative effects both on consumers' health and non-target species arc the major drawbacks of conventional control strategics. Carabid beetles are potential B. oleae pupae predators, but their predation on field still need to be assessed. We tested adult Pseudoophonus rufipes, a species known to be active in olive orchard when pest pupae are abundant in the soil, in order to detect B. oleae pupae consumption at different post feeding times for both male and female carabids. An already existing protocol was used for detecting B. oleae mtDNA sequences of the cytochrome oxidase subunit I gene in carabids' gut, and its versatility improved. B. oleae mtDNA was detected up to 20 h after pupa ingestion with a high percentage of success, without significant differences between sexes and pair primers used. Prey DNA extraction was tested from both dissected and non-dissected carabids, obtaining comparable results. The trapping system used to collect carabids for molecular assays and the new elements introduced in the protocol represent cost-effective solutions that may be beneficial for future laboratory trials and, mostly, for the analysis of field-collected predators. Fostering the investigation of soil predators in olive orchard may increase the design of conservation control strategies against B. oleae.Scuola Superiore Sant’Anna, Pisa, Italy (PhD Programme in Agrobiodiversity)

    Forty years of carabid beetle research in Europe - from taxonomy, biology, ecology and population studies to bioindication, habitat assessment and conservation

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    Volume: 100Start Page: 55End Page: 14

    Figs 37–44 in An annotated checklist of the species of the subgenus Ifasina Jeannel, 1946, genus Cylindera Westwood, 1831 (Coleoptera, Cicindelidae), from the Philippines, with the description of a new species

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    Figs 37–44. Cylindera (Ifasina) spp, aedeagus, left lateral view: 37–40 – C. macilentaPublished as part of <i>Matalin, A.V., 2023, An annotated checklist of the species of the subgenus Ifasina Jeannel, 1946, genus Cylindera Westwood, 1831 (Coleoptera, Cicindelidae), from the Philippines, with the description of a new species, pp. 1-19 in Far Eastern Entomologist 473</i> on page 12, DOI: 10.25221/fee.473.1, <a href="http://zenodo.org/record/7945949">http://zenodo.org/record/7945949</a&gt

    Fig. 48 in An annotated checklist of the species of the subgenus Ifasina Jeannel, 1946, genus Cylindera Westwood, 1831 (Coleoptera, Cicindelidae), from the Philippines, with the description of a new species

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    Fig. 48. Distribution of Cylindera (Ifasina) spp. in the Philippines: red solid circle – C.Published as part of <i>Matalin, A.V., 2023, An annotated checklist of the species of the subgenus Ifasina Jeannel, 1946, genus Cylindera Westwood, 1831 (Coleoptera, Cicindelidae), from the Philippines, with the description of a new species, pp. 1-19 in Far Eastern Entomologist 473</i> on page 16, DOI: 10.25221/fee.473.1, <a href="http://zenodo.org/record/7945949">http://zenodo.org/record/7945949</a&gt
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