10 research outputs found

    Hsiaotycoris tuberculatus Lu, Zhao & Cai, sp. nov.

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    Hsiaotycoris tuberculatus Lü, Zhao & Cai, sp. nov. (Figs. 1–29) Description. Coloration. Body mostly blackish brown to black, slightly shiny. Basal half of third antennal segment yellow; irregular stripes on femora, annulations on tibiae light yellowish brown; two markings on boundary of corium and membrane of hemelytron of male, basal markings of connexival segments, markings on two lateral sides of each segment of abdominal terga in female (Fig. 1) yellow to brownish yellow; abdomen scattered with light brown or black spots of different sizes and with brown irregular markings; eyes of female light yellow with brown irregular markings, those of male brown; ocelli light yellow. Structure. Distinct sexual dimorphism, female subapterous and abdomen moderately dilated (Fig. 1), male macropterous and abdomen nearly parallel laterally (Fig. 5). Body (except glabrous portion) clothed with pale yellow short bent setae; two series of long spines on lower surface of fore femur and fore tibia, each with a short pale seta on tip; antenna, head, pronotum, leg, hemelytron of female, terga of abdomen of female, margin of connexival segments, and scutellum scattered with thick brownish black and light yellowish brown setae of different lengths; fourth antennal segment and subapical portion of third segment in female, second to fourth antennal segment in male, with pale oblique short setae; tarsus, most of nearly apical portion of tibia, with pale oblique setae; venter of legs with oblique short setae. First antennal segment thickest, first to third antennal segments of female and first to second segments of male with setiferous tubercles dorsally (Figs. 2 –4, 6, 7); interocellar space subequal to or slightly longer than distance between ocellus and ipsilateral eye; second rostral segment subequal to postocular portion in length. Collar of male with a setiferous tubercle; disk of posterior pronotal lobe depressed in male; posterior angles indistinct, lateral pronotal angles tuberculate, posterior margin nearly straight; scutellum with “ Y ”­shaped carina; hemelytra of female only reaching posterior margin of first abdominal tergum (Fig. 1), those of male extending beyond abdominal tip (Figs. 5, 16, 18); fore femur much thicker than mid and hind femora, fore legs with more and larger tubercles and spines than mid and hind legs (Figs. 13 –15, 19– 21). Outer margins of second to fourth and seventh connexival segments of female and those of third and fourth connexival segments of male nearly straight, outer margin of fifth and sixth connexival segments of female distinctly concave (Fig. 1), outer margin of sixth connexival segment of male slightly concave (Fig. 5); a pair of spiracles visible on dorsal surface of first abdominal tergum of female (Fig. 1). Abdominal tip of female abdomen as shown in Figs. 9–11. Pygophore without median process, middle portion of posterior margin nearly straight (Fig. 22); paramere compressed, slightly twisted in middle (Figs. 26–29); basal plate of phallus thick, plate bridge thin, pedicel long and strong (Fig. 23); basal 2 / 7 of dorsal phallothecal sclerite slightly warped upward (Fig. 23); struts Y­shaped (Fig. 24); phallosoma ovate in dorsal and ventral views (Figs. 24, 25). Measurements [♂ (n= 2)/Ψ (n= 3), holotype in parentheses]. Body length 11.75–12.23 / 11.67–11.86 (11.86); abdomen width 3.09–3.17 / 5.18–5.21 (5.21). Head length (including neck) 2.59–2.60 / 2.81–2.90 (2.90); length anteocular portion 0.79–0.81 / 0.97–1.04 (1.04); length postocular portion 1.21–1.24 / 1.31–1.45 (1.45); length synthlipsis 0.62–0.66 / 0.69–0.72 (0.72); interocellar space 0.31–0.35 / 0.31–0.38 (0.38); length antennal segments I–IV = 2.35–2.36 / 2.24–2.48 (2.48), 2.21–2.24 / 1.97–2.14 (2.14), 2.24–2.26 / 2.07–2.08 (2.08), 0.86–0.93 / 0.81–0.83 (0.83); length rostral segments I–III= 0.55–0.59 / 0.69–0.72 (0.72), 1.38–1.39 / 1.41–1.52 (1.52), 0.24–0.38 / 0.41–0.42 (0.42). Length anterior pronotal lobe 0.90–0.93 / 1.21–1.24 (1.24); length posterior pronotal lobe 1.28–1.31 / 0.62–0.69 (0.69); thorax width 3.09–3.17 / 2.07–2.10 (2.10); scutellum length 0.86–0.89 / 0.66–0.70 (0.70); hemelytron length 7.59–8.12 / 1.21–1.24 (1.24). Type material. Holotype, Ψ; China, Yunnan, Mengla, Wangtianshu; 3.V. 2005; X. S. Bai leg. Paratypes, 1 ♂; China, Yunnan, Jingdong, Xujiaba; 30.IV. 2005; H. S. Wang leg. 1 Ψ; same data as holotype; left III–IV antennal segments missing. 1 ♂, 1 Ψ; same collecting place as for holotype; 6.VI. 2005; J. X. Cui leg. Distribution. China (Yunnan). Etymology. The specific name refers to the fact some parts of the body surface bear many tuberculate processes. view. Scale bar of 17–21 = 1.00 mm; of 22–29 = 0.25 mm.Published as part of Lü, Zhaozhi, Zhao, Ping & Cai, Wanzhi, 2006, Hsiaotycoris tuberculatus, a new genus and species of Harpactorinae (Heteroptera: Reduviidae) from China, pp. 33-41 in Zootaxa 1286 on pages 35-40, DOI: 10.5281/zenodo.17350

    Hsiaotycoris Lu, Zhao & Cai

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    Hsiaotycoris Lü, Zhao & Cai, gen. nov. Type species. Hsiaotycoris tuberculatus Lü, Zhao & Cai, sp. n. Diagnosis. Medium sized. Head cylindrical with some tuberculate processes, subequal to or slightly longer than pronotum (Figs. 1, 5); first antennal segment with some distinct tuberculate processes (Figs. 2, 6), slightly longer than second segment, second segment subequal to third segment in length, fourth segment shortest; anterior portion of postclypeus prominently produced anteriorly, upper margin nearly straight (Figs. 12, 17); eyes of medium size, protruding laterally; ocelli small, widely separated; anteocular portion of head distinctly shorter than postocular, latter constricted behind eyes and subbasally; first rostral segment extending beyond anterior margin of eyes, second segment longest, longer than first and third segments combined, third segment shortest (Figs. 12, 17). Collar undeveloped; pronotum wider than long; transverse constriction situated behind middle in subapterous form (Figs. 1, 12) and before middle in macropterous form (Figs. 5, 17); anterior pronotal lobe scattered with some tubercles, lateral sides of low longitudinal median depression with symmetric smooth sculptures; lateral pronotal angles tuberculate, posterior margin nearly straight (Fig. 1, 5); scutellum unarmed; legs with some scattered tubercles and spines; fore leg moderately incrassate, with more tubercles and spines than mid and hind legs, inner surface of fore femur and fore tibia with two series of strong spines (Figs. 13, 19). Abdomen dilated laterally in subapterous form (Fig. 1) and nearly parallel laterally in macropterous form (Fig. 5). Distribution. China (Yunnan). Etymology. This genus is named in honor of the late Prof. T. Y. Hsiao for his great contribution to the study of Heteroptera. Masculine. Remarks. The general body plan of the female of the new genus is similar to that of Asiacoris Tomokuni & Cai, but the anterior portion of the postclypeus of the latter is distinctly bent upwards, and the ventral surfaces of the fore femur and fore tibia lack strong spines. The new genus is also allied to Tapirocoris Miller, Yangicoris Cai, Henricohahnia Breddin, Karenocoris Miller, and Malaiseana Miller. These genera can be distinguished with the following key.Published as part of Lü, Zhaozhi, Zhao, Ping & Cai, Wanzhi, 2006, Hsiaotycoris tuberculatus, a new genus and species of Harpactorinae (Heteroptera: Reduviidae) from China, pp. 33-41 in Zootaxa 1286 on page 34, DOI: 10.5281/zenodo.17350

    Saldinae

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    Subfamily Saldinae Amyot & Serville, 1843 <p> <b> <i>Calacanthia angulos</i> a</b> (Kiritshenko, 1912)</p> <p>The species was described from Tibet (Kiritshenko, 1912) and later recorded from Southern Xinjiang (Aerjin mountain: Leng Shui Spring; Muzitage Peak) (Chen 1996).</p> <p> <i>Halosalda lateralis</i> (Fallén, 1807)</p> <p>Widely distributed in the Palearctic. Within China known from Xinjiang, Inner Mongolia, Hebei (Chen, Lindskog, 1994).</p> <p>This halophilous species was collected on the coasts of salty reservoirs, high-mountainous Sairam-Nur (Sailimu Hu) Lake (2000 m) and in semidesert of northern Xinjiang.</p> <p> In Central Asia <i>H. lateralis</i> is known from Kyrgyzstan (recorded here for the first time), Kazakhstan, and Mongolia. In Kyrgyzstan the only specimen belonging to this species was collected by I.M. Kerzhner on the coast of high mountain salty lake Chatyr-Kel (3530 m a.s.l.); the specimen is now kept in the Zoological Institute RAS, St. Petersburg). In Siberia the species also occurs on the coasts of salty lakes (Kerzhner, 1973; Vinokurov, 2005).</p> <p> <b>Material examined:</b> 16 ɗ 19 Ψ, 1 instar V, Borohoro Shan, Sailimu Lake (Sairam-Nur) (44 0 39’47,2” N; 81 0 15’53,5” E), 2073m, 27.VII.2010 (Luo Zhaohui, N. Vinokurov); 1 ɗ 3 Ψ, Aweitan Resevior near rd 216, 22 km S of Altai (47°29'N; 87°51'E), 29.VI.2011 (Yang Hailin).</p>Published as part of <i>Vinokurov, Nikolai N., Luo, Zhaohui & Lü, Zhaozhi, 2012, Studies of true bugs of Xinjiang, western China. I. Leptopodomorpha: shore bugs (Hemiptera: Heteroptera: Saldidae), pp. 51-61 in Zootaxa 3336</i> on pages 52-53, DOI: <a href="http://zenodo.org/record/281321">10.5281/zenodo.281321</a&gt

    Chiloxanthinae

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    Subfamily Chiloxanthinae Reuter, 1891 Chiloxanthus kozlovi (Kiritshenko, 1912) The species was described from Tibet (Kiritshenko, 1912) and subsequently recorded from southern Xinjiang (Aketai, Qiaerlong; Muzitage Peak; Tashkurgan, Hongqilapu) (Chen 1996).Published as part of Vinokurov, Nikolai N., Luo, Zhaohui & Lü, Zhaozhi, 2012, Studies of true bugs of Xinjiang, western China. I. Leptopodomorpha: shore bugs (Hemiptera: Heteroptera: Saldidae), pp. 51-61 in Zootaxa 3336 on page 52, DOI: 10.5281/zenodo.28132

    FIGURE 18 in Studies of true bugs of Xinjiang, western China. I. Leptopodomorpha: shore bugs (Hemiptera: Heteroptera: Saldidae)

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    FIGURE 18. Biotope of H. minuta sp. n. in region near lake Lop Nur: bugs occur near ephemeral grassy pools (photo by Yuan Lei)

    糖醋液对香梨优斑螟和草蛉的诱杀作用/Rapping effects of the mixture of sugar and acetic acid,moths and lacewings[J]

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    在苹果园设置4种不同组分的糖醋液(Ⅰ-红糖:食用醋:酒:水=2:3:1:11,Ⅱ-白砂糖:食用醋:酒:水=2:3:1:11,Ⅲ-红糖:乙酸:水=2:1:11,Ⅳ-白砂糖:乙酸:水=2:1:11),比较其对香梨优斑螟等果树害虫的诱捕效果,及对天敌草岭等的影响.结果表明,糖醋液中添加酒的组分(Ⅰ和Ⅱ)对香梨优斑螟的诱杀效果好,与不添加酒成分的效果差异极显著;对草岭的诱杀也存在影响,但差异不显著.糖醋液中不同的糖(Ⅰ和Ⅲ,Ⅱ和Ⅳ)对于香梨优斑螟、苹果蠹蛾、其他蛾类及草岭的诱杀效果不存在显著性差异.试验期间发现诱杀的不同种类昆虫数量上存在补性,认为在诱捕器附近可能存在种间排挤效应

    古尔班通古特沙漠南缘地表甲虫物种多样性及其与环境的关系/Diversity of ground-dwelling beetles within the southern Gurbantunggut Desert and its relationship with environmental factors[J]

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    为了解荒漠地表甲虫的多样性特点及其与环境的关系,明确其环境指示作用,评估沙漠工程对荒漠地表甲虫多样性的影响,作者于2010年5-7月采用陷阱法调查了占尔班通古特沙漠南缘从沙漠腹地到沙漠绿洲交错区不同生境的地表甲虫物种多样性,其中包括沙漠腹地公路防护体系的干扰生境.结果如下:(1)共捕获地表甲虫54,527头,隶属于14科81种,其中拟步甲科和象甲科占绝对优势,数量分别占到93.65%和5.14%;拟步甲科在沙漠腹地的活动密度远大于交错区,而在交错区象甲科种类最多,活动密度也最大;漠王属(Platyope)的种类均表现出明显的风沙土的倾向性,而阿苇长足甲(Adesmia aweiensis)和光滑胖漠甲(Trigonoscelis sublaevigata sublaevigata)则表现出明显的碱化灰漠土的倾向性;(2)不同生境间的丰富度、多样性指数、均匀度指数、优势度指数、活动密度总体上均具有显著性差异(df=32,P<0.05);(3)分别基于地表甲虫群落与优势类群的生境除趋势对应分析(DCA排序)均表明,沙漠边缘在研究区域中处于中间过渡地位,坡上生境更接近沙漠腹地,垄间更接近交错区;(4)荒漠地表甲虫群落的物种丰富度、多样性指数、均匀度指数、优势度指数与植被盖度、土壤含水量、有机质含量及全N、全P含量均存在显著线性相关(P<0.05),其中与土壤含水量的相关性最好,活动密度与所有环境因子的相关性最差,且为负相关;(5)沙漠公路防护体系中的地表甲虫活动密度显著降低,物种丰富度、多样性及均匀性均有所下降,但没有达到显著性水平;主要种的相对重要值也有较大变化.结论如下:荒漠地表甲虫的多样性特点为丰富度低、多样性低、均匀度差,但优势度高、活动密度高,并且这一特点随着生境从荒漠绿洲交错区到沙漠腹地越趋明显;荒漠地表甲虫在科、属与种的水平上均表现了一定的环境指示作用;土壤类型在群落排序中起着主要作用;活动密度与土壤含水量的负相关关系可能是局域尺度下荒漠地表甲虫多样性的一般性规律;工程干扰对沙漠腹地的地表甲虫群落产生了一定的影响,草方格、梭梭(Haloxylon ammodendron)、沙拐枣(Calligonum sp.)等人工植被可能是导致这一影响的主要因素

    多因子对棉蚜有翅蚜形成的影响/The effects of multifactor on the alate development in Aphis gossypii[J]

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    有翅蚜产生是蚜虫适应环境变化的重要策略,多种因子诱导有翅蚜的形成.本文研究了温度、拥挤度、母代效应和天敌对棉蚜有翅蚜形成的影响程度.结果表明:在21~30℃温度范围内内,温度与翅蚜比例呈线性关系,21℃形成有翅蚜比例最高,约为10%;棉蚜拥挤度与有翅蚜比例成正相关;温度与拥挤度2因子的正交试验也进一步证实了低温、高拥挤度组合更有利于有翅个体的形成.母代效应对棉蚜F1代有翅蚜的形成有显著性影响,天敌胁迫促进有翅个体的形成.生物因子及非生物因子共同作用影响有翅蚜的形成,但在以后的研究中需要从分子水平上关注两者内在互作关系
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