Journal of Asia-pacific Entomology最新文献_第2页

Investigation on the mosquitocidal property of cis-13-Octadecenoic acid isolated from Andrographis paniculata against Aedes aegypti and Culex quinquefasciatus (Diptera: Culicidae) 从穿心莲中分离的顺式-13-十八碳烯酸对埃及伊蚊和库蚊（双翅目：蚤科）的杀蚊特性研究

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-10-24 DOI: 10.1016/j.aspen.2024.102330

Jelin Vilvest , M.C. John Milton , Alex Yagoo , Kedike Balakrishna

Mosquitoes are a critical global public health concern, causing millions of deaths each year due to the viral infections and diseases they spread. In recent decades, synthetic insecticides and repellents have been used to control mosquito populations and virus transmission, but they often harm the environment and non-target organisms, including humans. This research investigates the isolation, characterization, and structural elucidation of cis-13-Octadecenoic acid derived from Andrographis paniculata, and its effectiveness against the immature stages of Aedes aegypti and Culex quinquefasciatus. The extracts from A. paniculata underwent fractionation, with the most bioactive fractions being further purified and analyzed. Spectroscopic techniques were employed to confirm the structure of cis-13-Octadecenoic acid. Biological assays were then performed to evaluate its ovicidal, larvicidal, and pupicidal activities. cis-13-Octadecenoic acid exhibited notable ovicidal activity, causing 25 % mortality in Ae. aegypti eggs and 29 % mortality in Cx. quinquefasciatus eggs at a concentration of 2 ppm. Additionally, it showed strong larvicidal and pupicidal activities, with LC₅₀ values of 2.67 ppm and 3.39 ppm for Ae. aegypti larvae and pupae, and 3.10 ppm and 2.93 ppm for Cx. quinquefasciatus larvae and pupae, respectively. These findings demonstrate the potential of cis-13-Octadecenoic acid as an effective natural compound for mosquito control, highlighting the broader importance of natural products as alternatives to synthetic insecticides in the management of vector-borne diseases.

蚊子是一个重要的全球公共卫生问题，每年因其传播的病毒感染和疾病造成数百万人死亡。近几十年来，人们一直使用合成杀虫剂和驱虫剂来控制蚊虫数量和病毒传播，但它们往往会对环境和包括人类在内的非目标生物造成危害。本研究调查了从穿心莲中提取的顺式-13-十八碳烯酸的分离、表征和结构阐释及其对埃及伊蚊和库蚊未成熟阶段的有效性。穿心莲提取物经过分馏，生物活性最强的部分被进一步纯化和分析。利用光谱技术确认了顺式-13-十八碳烯酸的结构。顺式-13-十八碳烯酸具有显著的杀卵活性，在百万分之 2 的浓度下，埃及蚁卵的死亡率为 25%，昆虫卵的死亡率为 29%。此外，它还具有很强的杀幼虫和杀蛹活性，对埃及伊蚊幼虫和蛹的半数致死浓度分别为 2.67 ppm 和 3.39 ppm，对五步蛇幼虫和蛹的半数致死浓度分别为 3.10 ppm 和 2.93 ppm。这些发现表明顺式-13-十八碳烯酸作为一种有效的天然化合物具有控制蚊虫的潜力，突出了天然产品作为合成杀虫剂替代品在病媒传播疾病管理中的广泛重要性。

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引用次数: 0

Hibernation changes tissue specific lipophilic profile of Chilo partellus (Swinhoe) 冬眠改变了奇洛鱼（Swinhoe）的组织亲脂性特征

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-10-22 DOI: 10.1016/j.aspen.2024.102327

Ashok K. Sau , Mukesh K. Dhillon , Sandeep Kumar , Aditya K. Tanwar

Chilo partellus undergo hibernation to survive under harsh winter conditions. We investigated changes in lipophilic profiles of larval and pupal whole body and tissues (haemolymph, fat bodies and integument) of hibernation and non-hibernation C. partellus strains. Significantly higher amount of lipids was found in whole body of pre-hibernation and hibernation larvae than non-hibernation larvae. At tissue level, total lipids were significantly higher in haemolymph and fat bodies of pre-hibernation, and integument of non-hibernation larvae. In whole body of larvae and pupae of hibernation and non-hibernation strains, most abundant fatty acids were oleic acid (16.4%–23%), palmitic acid (14.6%–19.3%), linoleic acid (9.3%–11.6%), palmitoleic acid (3.7%–7.3%) and stearic acid (1.7%–2.8%). Further, at tissue level, myristic, palmitoleic, palmitic, linoleic and oleic acids in fat bodies; and stearic acid in the integument of hibernation larvae were higher as compared to other body parts and larval stages of C. partellus. In pupal tissues, myristic, palmitic and stearic acids were higher in the haemolymph and fat bodies of non-hibernation pupae than post-hibernation pupae. Among the unsaturated fatty acids (UFAs), the palmitoleic acid significantly increased in all the larval tissues, and linoleic acid in fat bodies and integument, while oleic acid significantly decreased in integument of hibernation as compared to non-hibernation larvae of C. partellus. These information on adaptive remodelling of lipids at tissue level might help in future physiological, molecular, ecological and pest management studies on C. partellus.

奇洛虫（Chilo partellus）通过冬眠在严酷的冬季条件下生存。我们研究了冬眠和非冬眠部分栉水母幼虫和蛹全身及组织（血淋巴、脂肪体和皮肤）亲脂特征的变化。冬眠前和冬眠幼虫全身的脂质含量明显高于非冬眠幼虫。在组织水平上，冬眠前幼虫血淋巴和脂肪体中的总脂类明显高于非冬眠幼虫。在冬眠和非冬眠品系的幼虫和蛹的全身，最丰富的脂肪酸是油酸（16.4%-23%）、棕榈酸（14.6%-19.3%）、亚油酸（9.3%-11.6%）、棕榈油酸（3.7%-7.3%）和硬脂酸（1.7%-2.8%）。此外，在组织水平上，冬眠幼虫脂肪体中的肉豆蔻酸、棕榈油酸、棕榈酸、亚油酸和油酸，以及冬眠幼虫体表中的硬脂酸均高于其它身体部位和幼虫阶段。在蛹组织中，非冬眠蛹血淋巴和脂肪体中的肉豆蔻酸、棕榈酸和硬脂酸高于冬眠后蛹。在不饱和脂肪酸（UFAs）中，棕榈油酸在所有幼虫组织中都显著增加，亚油酸在脂肪体和皮层中显著增加，而油酸在冬眠幼虫的皮层中比非冬眠幼虫显著减少。这些关于组织水平脂质适应性重塑的信息可能有助于未来对部分栉水母的生理、分子、生态和害虫管理研究。

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引用次数: 0

Negative relationships between elevated developmental temperatures and morphological traits of different castes of bumblebees (Bombus terrestris) 发育温度升高与不同种群熊蜂形态特征之间的负相关关系

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-10-13 DOI: 10.1016/j.aspen.2024.102326

Han Soo Kim , Jin Myeong Kim , Weiyue Qiu , Hyung Joo Yoon , Kyeong Yong Lee , Kwang Sik Lee , Byung Rae Jin

Climate change can negatively impact the morphology and behavior of bumblebees. In particular, it can decrease the body size of workers, thereby reducing foraging activity. However, the morphological impacts of higher developmental temperatures on different castes of bumblebees remain insufficiently understood. In this study, we investigated the effects of elevated developmental temperatures on the morphological traits of different castes of bumblebees (Bombus terrestris). We reared queens that emerged from hibernation at different developmental temperatures: optimal (constant temperature of 27 °C), moderately high (constant temperature of 32 °C), and high (35 °C; by transferring the colony from 32 °C to 35 °C after the emergence of 10 workers). The body weight, head capsule width, body width, body length, and wing length of different castes of bumblebees significantly differed at elevated developmental temperatures. The highest impact was noted on the body width and body weight of workers, body width and wing length of queens, and body length, head capsule width, and wing length of males. Among the different castes of bumblebees, workers were most impacted by elevated developmental temperatures, followed by queens and then males. In contrast, the relative ratio of wing length to body length suggested the allometry of wing length in bumblebee castes at elevated developmental temperatures. These findings indicate that elevated developmental temperatures resulting from climate change may negatively affect the morphological traits of different castes of bumblebees.

气候变化会对熊蜂的形态和行为产生负面影响。特别是，气候变化会缩小工蜂的体型，从而减少觅食活动。然而，人们对较高的发育温度对不同种群熊蜂形态的影响仍然了解不足。在这项研究中，我们调查了发育温度升高对熊蜂不同种群形态特征的影响。我们在不同的发育温度下饲养了从冬眠中苏醒的蜂王：最佳温度（恒温27 °C）、中度高温（恒温32 °C）和高温（35 °C；在10只工蜂苏醒后将蜂群从32 °C转移到35 °C）。不同种群熊蜂的体重、头囊宽度、体宽、体长和翅长在发育温度升高时有显著差异。影响最大的是工蜂的体宽和体重、蜂王的体宽和翅长以及雄蜂的体长、头囊宽和翅长。在不同种群的熊蜂中，工蜂受发育温度升高的影响最大，其次是蜂王，然后是雄蜂。相比之下，翅长与体长的相对比例表明，在发育温度升高的情况下，熊蜂种群的翅长会发生异变。这些发现表明，气候变化导致的发育温度升高可能会对熊蜂不同种群的形态特征产生负面影响。

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引用次数: 0

Dissemination of phosphorescent microbial agents by honey bees (Apis mellifera L.) in apple orchards 蜜蜂（Apis mellifera L.）在苹果园中传播磷光微生物制剂

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-10-09 DOI: 10.1016/j.aspen.2024.102325

Jin Hyeok Choi , Soon-Il Kim , Woohyung Lee , Yong Hwan Lee , Kil Won Kim , Myeong-Lyeol Lee , Hyung Wook Kwon

Honey bees are commonly used for pollination in apple orchards. This study aimed to develop a bee-vectoring scheme whereby honey bees (Apis mellifera L.) deliver microbial agents (Bacillus amyloliquefaciens MBI600) against fire blight from a dispenser at the entrance of the beehive to apple flowers. The efficiency of disseminating phosphorescent microbial agents (PMA) by honey bees was compared across four apple orchards; (A) with installed insect nets, (B) isolated on an island, (C) adjacent to other apple orchards and apiaries, and (D) near C within 50 m and without beehives. The average detection ratio of PMA on bees visiting flowers was 100 % in orchard (A) and (B), whereas in (C) and (D) it was 54.5 % and 40.0 %, respectively. Detection of PMA on apple blossoms was also 100 % in (A) and (B), but significantly low in (C) and (D) at 52.8 % and 12.9 %. In orchards (A) and (B), PMA adhered to pistils at high ratios of 98.0 % and 96.3 %, while in orchard (C), it was significantly lower at 9.3 %. Phosphorescence intensity in flowers and the proportion of apple pollen loads collected from incoming bees were also investigated. Finally compared to the orchard (A) and (B), open orchard (C) and (D) showed significantly lower microbial agent spread efficiency by honey bee vectoring. For open orchards, supplemental strategy to enhance bee vectoring could include increasing the number of hives in the orchard and temporarily relocating neighbor’s beehives during flowering, or supplying additional dispensers to nearby apiaries.

蜜蜂通常用于苹果园的授粉。本研究旨在开发一种蜜蜂媒介计划，蜜蜂（Apis mellifera L.）可通过蜂箱入口处的分配器向苹果花输送抗枯萎病的微生物制剂（淀粉芽孢杆菌 MBI600）。比较了蜜蜂在四个苹果园中传播磷光微生物制剂（PMA）的效率：(A) 安装了防虫网，(B) 孤立在一个小岛上，(C) 毗邻其他苹果园和养蜂场，(D) C 附近 50 米内无蜂箱。果园(A)和(B)中蜜蜂探花的 PMA 平均检测率为 100%，而(C)和(D)分别为 54.5% 和 40.0%。苹果花上的 PMA 检测率在（A）和（B）中也是 100%，但在（C）和（D）中明显较低，分别为 52.8 % 和 12.9 %。在果园（A）和（B）中，PMA 附着在雌蕊上的比例较高，分别为 98.0 % 和 96.3 %，而在果园（C）中，PMA 附着在雌蕊上的比例明显较低，仅为 9.3 %。此外，还研究了花朵中的磷光强度和蜜蜂采集到的苹果花粉量的比例。最后，与果园（A）和（B）相比，开放果园（C）和（D）通过蜜蜂载体传播微生物菌剂的效率明显较低。对于开放式果园，加强蜜蜂载体传播的补充策略可包括增加果园中的蜂箱数量，在开花期间临时迁移邻居的蜂箱，或向附近的养蜂场提供额外的分配器。

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引用次数: 0

Mode of action underlying toxicity of Camptothecin to Spodoptera frugiperda (Lepidoptera) larvae 喜树碱对 Spodoptera frugiperda（鳞翅目）幼虫的毒性所依据的作用模式

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-09-25 DOI: 10.1016/j.aspen.2024.102322

Jun-li Lv , Wen-qing Lai , Lei Pang , Xiao-ying Zhang , Kai-yi Zheng , Qiang Zhang , Zhan-peng Lu , Zhi-sheng Wang , Fasihul Lisan , Xue-yang Wang , Lu-feng Hu , Ming-jie Deng

Camptothecin (CPT) is derived from Camptotheca acuminate and its main action is the inhibition of the DNA topoisomerase I (Top I) complex. Therefore, CPT and its derivatives are always used as antitumor and antimicrobial agents and also have some insecticidal effects. However, the mode of action underlying the toxicity of CPT to the virulence of pests is still not fully understood. In this study, the effects of CPT on Spodoptera frugiperda (S. frugiperda) were determined by performing toxicity assessments, metabolomics, and mechanism analysis. The results showed that CPT increased the efficiency of inhibition of larval weight in a dose and time-dependent manner. In addition, the metabolomics of 5th-instar larval hemolymph was determined by UPLC-MS/MS and ¹H NMR analysis. UPLC-MS/MS analysis showed that the energy metabolic pathway was more important than the amino acid pathway for the resistance of S. frugiperda to CPT. Furthermore, metabolites involved in the energy metabolic pathway were analyzed using ¹H NMR, and fumarate and pyruvate were identified as interesting metabolites. Bioassays confirmed that they play a key role in enhancing the resistance of S. frugiperda larvae to CPT. Finally, the underlying mechanisms were found to be related to the restorative effects of the two metabolites on metabolic pathways associated with the TCA cycle. In a word, CPT is a potential biological insecticide that exhibits a strong toxicological effect against S. frugiperda by inhibiting the TCA cycle, which provides theoretical support for applying CPT in the control of pests.

喜树碱（CPT）来自于喜树的渐尖叶，其主要作用是抑制 DNA 拓扑异构酶 I（Top I）复合物。因此，喜树碱及其衍生物一直被用作抗肿瘤和抗菌剂，还具有一定的杀虫作用。然而，CPT 对害虫毒力产生毒性的作用模式尚未完全清楚。本研究通过毒性评估、代谢组学和机理分析，确定了 CPT 对鞘翅目蚜虫（S. frugiperda）的影响。结果表明，氯化石蜡对幼虫体重的抑制效率的提高与剂量和时间有关。此外，还通过 UPLC-MS/MS 和 1H NMR 分析测定了五龄幼虫血淋巴的代谢组学。UPLC-MS/MS分析表明，能量代谢途径比氨基酸途径对节肢动物对CPT的抗性更为重要。此外，还利用 1H NMR 分析了能量代谢途径中的代谢物，发现富马酸和丙酮酸是有趣的代谢物。生物测定证实，它们在增强节肢动物幼虫对 CPT 的抗性方面发挥了关键作用。最后，研究发现其基本机制与这两种代谢物对 TCA 循环相关代谢途径的恢复作用有关。总之，CPT 是一种潜在的生物杀虫剂，它通过抑制 TCA 循环对蚜虫表现出很强的毒性作用，这为应用 CPT 控制害虫提供了理论支持。

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引用次数: 0

Megachilid bees (Hymenoptera: Anthophila: Megachilidae) of Ladakh: A morphological and molecular approach 拉达克的巨蜂（膜翅目：蝠科：Megachilidae）：形态学和分子方法

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-09-24 DOI: 10.1016/j.aspen.2024.102324

Spalzin Angmo , Sayan Sardar , Tsering Stobdan , Archana Chauhan , S.I. Kazmi , A. Rameshkumar

The megachilid bees of Ladakh are documented based on the collections deposited in the National Zoological Collection and the collections made from Leh district by S. Angmo during 2020–2023. Accounts of sixteen species known from this region belonging to three tribes viz., Anthidiini (03 species), Megachilini (09 species) and Osmiini (01 species) are provided. Thirteen species have been detected among which seven species, Stelis scutellaris Morawitz, Coelioxys conoideus (Illiger), Coelioxys rufescens Lepeletier and Serville, Megachile creutzburgi (Tkalců), Megachile leachella Curtis, Megachile lagopoda (Linnaeus) and Megachile maritima (Kirby) are new to India, while three among the remaining six species are new to Ladakh. Floral associations for the recently collected specimens are provided. The Mitochondrial COI sequences of 09 species are deposited in BOLD/NCBI among which sequences for 03 species are novel deposits. Based on the COI sequences already available in the database and the sequences deposited, a phylogenetic tree for the studied specimens has been included.

拉达克的巨型蜜蜂是根据存放在国家动物学收藏馆的采集物和 S. Angmo 在 2020-2023 年期间在列伊地区的采集物记录下来的。报告介绍了该地区已知的 16 个物种，分别属于三个部落，即 Anthidiini（03 种）、Megachilini（09 种）和 Osmiini（01 种）。已发现 13 个物种，其中 7 个物种（Stelis scutellaris Morawitz、Coelioxys conoideus (Illiger)、Coelioxys rufescens Lepeletier and Serville、Megachile creutzburgi (Tkalců)、Megachile leachella Curtis、Megachile lagopoda (Linnaeus) 和 Megachile maritima (Kirby)）为印度新发现，其余 6 个物种中有 3 个为拉达克新发现。报告还提供了最近采集的标本的花序关系。有 09 个物种的线粒体 COI 序列保存在 BOLD/NCBI 中，其中有 03 个物种的序列是新保存的。根据数据库中已有的 COI 序列和已保存的序列，研究标本的系统发生树已经包含在内。

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引用次数: 0

Investigating the enzymatic response of Plutella xylostella L. (Lepidoptera: Plutellidae) to Metarhizium anisopliae (Metschnikoff) Sorokin (Ascomycota: Hypocreales) Infection: A Comprehensive study 调查鳞翅目褐飞虱 Plutella xylostella L. (Lepidoptera: Plutellidae) 对 Metarhizium anisopliae (Metschnikoff) Sorokin (Ascomycota: Hypocreales) 感染的酶反应：综合研究

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-09-24 DOI: 10.1016/j.aspen.2024.102321

Abarna V.P. , Muthuswami M. , Jeyarajan Nelson S , Johnson Thangaraj Edward Y.S. , Manikanda Boopathi N. , Anita B. , Jeya Sundara Sharmila D.

The diamondback moth (DBM), Plutella xylostella, poses a significant threat to cruciferous crops due to its resistance to conventional insecticides. Entomopathogenic fungi (EPF), such as Metarhizium anisopliae offer a promising solution for the management of P. xylostella. When exposed to lethal or sub-lethal doses of microbial insecticides especially EPF, insects often mount various immune responses as a survival mechanism, including the activation of detoxification and protective enzymes. In this study, M. anisopliae (Ma1) isolated from soil resulted in 94.00 ± 0.245 percent mortality of DBM at a conidial load of 1 x 10⁹ conidia/ml, with an LC₅₀ value of 2.70 x 10⁶ conidia/ml. The activity of various detoxifying and free radical scavenging enzymes was assessed in whole-body samples of P. xylostella at varying time intervals after inoculation with the entomopathogenic fungi. The results showed that the activity of the enzymes increased after 48 h of inoculation, reaching a maximum at 96 h after inoculation. After 96 h, the activity of these enzymes started to decline significantly. In conclusion, the M. anisopliae isolate Ma1 was found to be highly effective against P. xylostella. Therefore, it could be formulated using appropriate carrier material and used as a component in Integrated pest management programs. Elevated levels of detoxification and free radical scavenging enzyme expression helps in understanding the immune mechanisms in P. xylostella in response to M. anisopliae infection.

由于菱纹夜蛾（DBM）对传统杀虫剂具有抗药性，它对十字花科作物构成了严重威胁。昆虫病原真菌（EPF），如Metarhizium anisopliae，为管理木蠹蛾提供了一种很有前景的解决方案。昆虫暴露于致死或亚致死剂量的微生物杀虫剂（尤其是 EPF）时，通常会产生各种免疫反应作为生存机制，包括激活解毒酶和保护酶。在这项研究中，从土壤中分离出的 M. anisopliae（Ma1）在分生孢子量为 1 x 109 个分生孢子/毫升时，可使 DBM 的死亡率达到 94.00 ± 0.245%，半致死浓度为 2.70 x 106 个分生孢子/毫升。在接种昆虫病原真菌后的不同时间间隔内，对木虱全身样本中各种解毒酶和自由基清除酶的活性进行了评估。结果表明，接种 48 小时后，酶的活性增加，在接种 96 小时后达到最大值。96 小时后，这些酶的活性开始明显下降。总之，研究发现 M. anisopliae 分离物 Ma1 对木虱非常有效。因此，可以使用适当的载体材料对其进行配制，并将其用作害虫综合治理计划的一个组成部分。解毒酶和自由基清除酶表达水平的提高有助于了解木虱对 M. anisopliae 感染的免疫机制。

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引用次数: 0

Re-description of the genus Talanga Moore and the description of a new endemic species from Indonesia (Lepidoptera: Crambidae; Spilomelinae) 重新描述 Talanga Moore 属并描述印度尼西亚特有的一个新种（鳞翅目：蝶科；鞘翅目）

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-09-24 DOI: 10.1016/j.aspen.2024.102323

Darmawan Darmawan , Jackson F. Watung , Awit Suwito , Raden Pramesa Narakusumo , Encilia Encilia , Agmal Qodri , Dhian Dwibadra , Djunijanti Peggie , Rosichon Ubaidillah , Hari Sutrisno

Six species of the genus Talanga Moore 1855 are re-described based on both morphological and genitalia characters. T. tolumnialis Walker is not included due to the lack of available of material. Morphological characters such as a tapering, oblique outwardly antemedial band on the forewing and two black metallic spots externally bordered by similar minute interciliar spots on the hindwing, are proposed as the most appropriate characters to define the genus Talanga. The study also reveals that certain genitalia characters, such as a spatula-shaped uncus, a simple valva with a medial rod-like plate, a long cylindrical phallus without cornuti, a bundle of pencil hairs at the coremata base in male genitalia, and a pair of ovate or circular signa medially bearing denticles in female genitalia, are also diagnostic of this genus. The description of a new endemic species from Foja Mountain, Talanga horakae sp. nov., is presented, as well as an identification key to Indonesian species, and images of adults and genitalia of the studied species.

根据形态和生殖器特征重新描述了 Talanga Moore 1855 属的 6 个物种。由于缺乏可用材料，T. tolumnialis Walker 未被包括在内。研究人员提出了一些形态特征，如前翅上有一条向外倾斜的锥形反面带，后翅上有两个黑色的金属斑，外侧有类似的细小间斑；这些特征是界定 Talanga 属的最合适特征。研究还发现，某些生殖器特征也是该属的诊断特征，例如匙形的阴茎头、带有内侧杆状板的单瓣膜、无角质的长圆柱形阴茎、雄性生殖器核心基部的一束铅笔状毛，以及雌性生殖器的一对卵形或圆形、内侧带有小齿的签子。本文描述了产自佛牙山的新特有种 Talanga horakae sp. nov.，并提供了印度尼西亚物种的识别钥匙以及所研究物种的成虫和生殖器图像。

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引用次数: 0

Effect of pollen consumption on development and intraguild predation of two predatory Coccinellidae 花粉消耗对两种食肉蝇科昆虫的发育和群内捕食的影响

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-09-07 DOI: 10.1016/j.aspen.2024.102320

Peng-Liang Xia , Xiu-Fang Wang , Yi Feng , Yong Huang , Fei Ji , Wen-Xiao Cui , Bao-Ming Qiao

Many omnivorous predaceous coccinellids consume both pests like aphids and a range of plant-derived foods including pollen. It is critical to understand how plant-derived food like pollen could affect the fitness and interspecific interactions of predaceous coccinellids. This study investigated the effect of pollen consumption on the development, reproduction and intraguild predation (IGP) of two naturally co-existing aphidophagous ladybirds, Harmonia axyridis and Propylea japonica. Both species were provided with three diets including a moist canola pollen, the aphid Myzus persicae, or moist canola pollen together with aphids. The 1st instar larval of both H. axyridis and P. japonica could not survive and develop to the next larval stage when supplied with water alone. When fed on pollen only, 53 % of the H. axyridis larvae and 25 % of the P. japonica larvae successfully developed to adult. Both species exhibited an elongated development time, shorter larval body length and lower adult body weight than when offered with aphids and the mixed diet. In addition, P. japonica could not reproduce when fed on pollen alone. Interestingly, when pollen was provided as additional food, the overall IGP between larvae of H. axyridis and P. japonica was significantly reduced compared with water control or aphid as food alone. The results of this study indicated that pollen not only supports the survival of H. axyridis and P. japonica when prey is scarce, but also could benefit the co-existence of these species. For future study, it is necessary to investigate how pollinivory could benefit the fitness and biological control potential of H. axyridis and P. japonica under field conditions.

许多杂食性肉食茧蜂既吃蚜虫等害虫，也吃包括花粉在内的一系列植物衍生食物。了解花粉等植物衍生食物如何影响肉食性茧丝虫的适应性和种间相互作用至关重要。本研究调查了食用花粉对两种自然共存的食蚜瓢虫（Harmonia axyridis和Propylea japonica）的发育、繁殖和种内捕食（IGP）的影响。为这两种瓢虫提供了三种食物，包括潮湿的油菜花粉、蚜虫Myzus persicae或潮湿的油菜花粉和蚜虫。如果只给 H. axyridis 和 P. japonica 喂水，它们的 1龄幼虫都无法存活并发育到下一个幼虫阶段。只喂花粉时，53% 的 H. axyridis 幼虫和 25% 的 P. japonica 幼虫能成功发育成成虫。与喂食蚜虫和混合饲料相比，这两种害虫的发育时间延长，幼虫体长缩短，成虫体重降低。此外，仅喂食花粉时，P. japonica 无法繁殖。有趣的是，当提供花粉作为额外食物时，与水对照或仅以蚜虫作为食物相比，H. axyridis 和 P. japonica 幼虫之间的总体 IGP 显著降低。本研究结果表明，当猎物稀少时，花粉不仅能支持蚜蝇幼虫的生存，还能促进这些物种的共存。在今后的研究中，有必要探讨在野外条件下，食粉如何有利于 H. axyridis 和 P. japonica 的适应性和生物防治潜力。

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引用次数: 0

Two new species of the subgenus Tipula (Emodotipula) Alexander, 1966 (Diptera, Tipulidae) from southwest China 来自中国西南地区的 Tipula (Emodotipula) 亚属的两个新种 Alexander, 1966 (Diptera, Tipulidae)

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology

Pub Date : 2024-09-06 DOI: 10.1016/j.aspen.2024.102318

Qi-Cheng Yang , Li-Ling Mo , Jing Wang , Xiao-Yan Liu , Ding Yang

Only four species of the subgenus Emodotipula Alexander, 1966 were known to occur in China. Two new species, Tipula (Emodotipula) chayuensis, sp. nov., and Tipula (Emodotipula) kangdingensis, sp. nov., are described and illustrated. A key to the species of Tipula (Emodotipula) from China is presented.

LSID: urn:lsid:zoobank.org:pub:C96BF4D7-68CD-4F5F-9EAA-FF2909A419FF.

据了解，中国仅有四种亚属Emodotipula Alexander，1966。本文描述了两个新种，Tipula (Emodotipula) chayuensis, sp.中国Tipula（Emodotipula）物种检索表.LSID: urn:lsid:zoobank.org:pub:C96BF4D7-68CD-4F5F-9EAA-FF2909A419FF.

引用次数: 0