dobsonfly

简明释义

英[ˈdɒbsənˌflaɪ]美[ˈdɑːbsənˌflaɪ]

n. 角鱼蛉

复 数 d o b s o n f l i e s

英英释义

单词用法

同义词

反义词

例句

1.A carnivorous insect of the order Neuroptera, such as the ant lion or dobsonfly, having four net - veined wings and mouthparts adapted for chewing.

脉翅目脉翅目的食肉昆虫，如蚁狮或鱼蛉，有四个网状翅脉的翅膀和适于咀嚼的口器。

2.A carnivorous insect of the order Neuroptera, such as the ant lion or dobsonfly, having four net - veined wings and mouthparts adapted for chewing.

脉翅目脉翅目的食肉昆虫，如蚁狮或鱼蛉，有四个网状翅脉的翅膀和适于咀嚼的口器。

3.The large wings of the dobsonfly 大蜻蜓 make it one of the most impressive insects in the riverbank ecosystem.

大蜻蜓的巨大翅膀使它成为河岸生态系统中最引人注目的昆虫之一。

4.During our camping trip, we spotted a dobsonfly 大蜻蜓 near the water, showcasing its unique features.

在我们的露营旅行中，我们在水边发现了一只大蜻蜓，展示了它独特的特征。

5.The larvae of the dobsonfly 大蜻蜓 are known for their predatory behavior in freshwater habitats.

大蜻蜓的幼虫以其在淡水栖息地中的捕食行为而闻名。

6.We learned that the lifespan of a dobsonfly 大蜻蜓 can be quite short, often only lasting a few weeks as adults.

我们了解到，大蜻蜓的寿命可能相当短暂，成虫通常只活几周。

7.The mating dance of the dobsonfly 大蜻蜓 is a fascinating sight to witness at dusk.

在黄昏时分，观看大蜻蜓的求偶舞是一种迷人的景象。

作文

The natural world is filled with fascinating creatures, and one such insect that often captures the curiosity of entomologists and nature enthusiasts alike is the dobsonfly. Known scientifically as members of the family Corydalidae, dobsonflies are particularly notable for their unique appearance and intriguing life cycle. These insects can be found near freshwater bodies, where they thrive in clean, flowing water, making them indicators of environmental health. Their presence signifies a balanced ecosystem, as they require specific conditions to survive. The adult dobsonfly is easily recognizable due to its large size, with some species boasting wingspans of up to five inches. Their elongated bodies and prominent mandibles give them a somewhat intimidating look, especially the males, which possess larger jaws. Despite their fierce appearance, dobsonflies are harmless to humans and do not bite or sting. Instead, they play a crucial role in the ecosystem as both predators and prey. The life cycle of a dobsonfly is equally captivating. They begin their lives as eggs laid on vegetation near water sources. Once hatched, the larvae, known as hellgrammites, enter the water and live as aquatic predators. Hellgrammites are voracious eaters, feeding on other small aquatic organisms, which helps maintain the balance of the ecosystem. After several molts, these larvae undergo metamorphosis, emerging from the water to pupate on land. This transformation into an adult dobsonfly is a critical phase, as it allows them to transition from an aquatic to a terrestrial lifestyle. As adults, dobsonflies have a relatively short lifespan, typically living only a few weeks. During this time, their primary focus is reproduction. Males often engage in elaborate courtship displays, showcasing their impressive mandibles to attract females. After mating, females lay their eggs in suitable locations, ensuring the continuation of their species. While dobsonflies may not be as well-known as butterflies or bees, they are an essential part of the biodiversity in their habitats. Their presence contributes to the overall health of aquatic ecosystems, and studying them can provide valuable insights into environmental changes. Conservation efforts aimed at preserving freshwater habitats also benefit dobsonflies and many other species that rely on these ecosystems. In conclusion, the dobsonfly is a remarkable insect that exemplifies the complexity and beauty of nature. From its unique life cycle to its role in the ecosystem, this insect serves as a reminder of the intricate connections within our environment. By learning more about dobsonflies and their habitats, we can better appreciate the importance of protecting our natural world for future generations.

自然界充满了迷人的生物，其中一种常常引起昆虫学家和自然爱好者好奇的昆虫是dobsonfly。这种昆虫在科学上属于Corydalidae科，因其独特的外观和引人入胜的生命周期而备受关注。这些昆虫通常栖息在淡水水体附近，生活在清澈流动的水中，这使它们成为环境健康的指示物。它们的存在标志着生态系统的平衡，因为它们需要特定的条件才能生存。 成年的dobsonfly因其较大的体型而易于辨认，一些物种的翼展可达五英寸。它们细长的身体和显著的下颚赋予了它们一种略显威吓的外观，尤其是雄性，其下颚更大。尽管外表看起来凶猛，但dobsonflies对人类无害，不会咬人或蜇人。相反，它们作为捕食者和猎物在生态系统中扮演着至关重要的角色。 dobsonfly的生命周期同样引人入胜。它们的生命始于在水源附近的植被上产下的卵。孵化后，幼虫被称为hellgrammites，进入水中，作为水生捕食者生活。hellgrammites是贪婪的食肉动物，以其他小型水生生物为食，从而帮助维持生态系统的平衡。在经过几次蜕皮后，这些幼虫经历变态，爬出水面在陆地上蛹化。这一转变为成虫dobsonfly的阶段至关重要，因为它使它们能够从水生生活转变为陆生生活。 作为成年虫，dobsonflies的寿命相对较短，通常只活几周。在这段时间里，它们的主要任务是繁殖。雄性通常进行复杂的求偶展示，利用其令人印象深刻的下颚吸引雌性。交配后，雌性在适宜的地方产卵，确保物种的延续。 虽然dobsonflies可能没有蝴蝶或蜜蜂那样知名，但它们是栖息地生物多样性的重要组成部分。它们的存在有助于整体水生生态系统的健康，研究它们可以提供关于环境变化的宝贵见解。旨在保护淡水栖息地的保护工作也有利于dobsonflies和许多依赖这些生态系统的其他物种。 总之，dobsonfly是一种非凡的昆虫，体现了自然的复杂性和美丽。从其独特的生命周期到其在生态系统中的角色，这种昆虫提醒我们环境内部的复杂联系。通过更多地了解dobsonflies及其栖息地，我们可以更好地欣赏保护我们自然世界的重要性，以造福未来的世代。