双孔次目Ditrysia 是 有喙亚目 下的一个次目。 特点为前，后翅形状和 脉相 不相似，后翅R1与Sc愈合，Rs不分支；翅面无微刺， 翅缰 ─ 翅缰钩 连锁或贴接连锁；雌性外生殖器 双孔式 ， 交配囊 与 阴道 之间有 导精管 相连， 中输卵管 在 交配囊 背面，有 副腺 ...

Ditrysia is a clade of lepidopterans that contains both butterflies and a majority of moth species. They are named for the fact that the female has two distinct sexual openings: one for mating, and the other for laying eggs. About 98% of known Lepidoptera species belong to Ditrysia.

雙孔類 （學名： Ditrysia）是 昆虫 在 鱗翅目 底下的 演化支，包含 蝴蝶 和 蛾。 「雙孔」一名是指雌性具有兩個性開口，一個用於 交配，另一個用於 產卵，這特徵與 單孔 （英语：Monotrysia） （Monotrysia）相異。 鱗翅目中 已描述的物種 當中約有98%屬於雙孔類。 可以分為原始但有 並系群 的 微鱗翅目 （英语：Macrolepidoptera） （Microlepidoptera）和衍生的 單系群 短突雙孔類 （Apoditrysia），主要包括較大的飛蛾和蝴蝶。 有背心血管的屬於 木蠹蛾派 （英 …

特点为成虫 上颚 退化， 下颚 特化形成 喙管，为典型的 虹吸式口器。 是 鳞翅目 中最大的一个亚目，该亚目分为6个次目：毛顶蛾次目Dacnonypha，新毛顶蛾次目Neopseustina，冠顶蛾次目Lophocoronina， 外孔次目 Exoporia，异脉次目Heteroneura和 双孔次目 Ditrysia。 以 双孔次目 包括的种类最多。 有喙亚目Glossata 是鳞翅目下的一个亚目。

2015年11月21日 · Ditrysia comprise close to 99 % of all butterflies and moths. The evolutionary relationships among the ditrysian superfamilies have received considerable attention in phylogenetic studies based on DNA and transcriptomic data, but the deepest divergences remain for large parts unresolved or contradictory.

2024年6月21日 · 因此，ZO/ZZ型的性染色体系统被认为是鳞翅目和毛翅目的祖先系统，而W染色体是鳞翅目昆虫后期产生并主要分布在鳞翅目双孔亚目（Ditrysia，包含大部分蛾类和所有蝶类）物种中。 关于W染色体的起源问题，前人根据性别特异染色体产生的一般机制，推测鳞翅目W可能通过三种机制产生，包括非经典模型下的B染色体招募（Recruitment of B...

The Ditrysia are a natural group or clade of insects in the Lepidopteran order. It contains both butterflies and moths. They are called ditrisians because the female has two distinct sexual openings: one for mating, and the other for laying eggs. About 98% of described species of Lepidoptera belong to Ditrysia.

The Ditrysia are a natural group or clade of insects in the lepidopteran order containing both butterflies and moths. They are so named because the female has two distinct sexual openings: one for mating, and the other for laying eggs (in contrast to the Monotrysia). About 98% of described species of Lepidoptera belong to Ditrysia. As larvae ...

2009年12月2日 · Background: In the mega-diverse insect order Lepidoptera (butterflies and moths; 165,000 described species), deeper relationships are little understood within the clade Ditrysia, to which 98% of the species belong. To begin addressing this problem, we tested the ability of five protein-coding nuclear genes (6.7 kb total), and character subsets ...

This tree diagram shows the relationships between several groups of organisms. The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of …