The structure of a gilled stonefly larva from the mid-Cretaceous Kachin amber [0.03%]
缅甸北部白垩纪琥珀中的鳃曳 larvae化石
Zhi-Teng Chen
Zhi-Teng Chen
Perlidae stands as the most diverse family within Plecoptera, with evidence suggesting possible adaptation to warmer aquatic environments. Tracheal gills are hypothesized to have played a pivotal role in this radiation process. This study p...
Comparative microscopic anatomy of Schizomida - 1. Segmental axial musculature and body organization [0.03%]
䗛的微解剖学比较——1.节轴肌肉和身体结构组织
J Matthias Starck
J Matthias Starck
Schizomida is an enigmatic group of arachnids that is traditionally considered the dwarfed sister to Thelyphonida. Schizomids are of interest for evolutionary morphology, because they show a number of features like a tripartite prosoma dors...
Comparative Study
Arthropod structure & development. 2024 Jul:81:101373. DOI:10.1016/j.asd.2024.101373 2024
Comparative microscopic anatomy of Schizomida - 2. The rostrosoma and the pharyngeal suction pump [0.03%]
螠螨科的显微解剖比较研究第二部分：吻体和咽抽吸泵
J Matthias Starck
J Matthias Starck
This paper tests hypotheses of independent parallel evolution of the rostrosoma among euchelicerate taxa by analyzing the microscopic anatomy and histology of the rostrosoma of Uropygi (Schizomida and Thelyphonida) and comparing it with the...
Comparative Study
Arthropod structure & development. 2024 Jul:81:101372. DOI:10.1016/j.asd.2024.101372 2024
Conserved exopodite morphology in three-dimensionally preserved trilobites from the Walcott-Rust Quarry (Mohawkian, Ordovician) of New York, USA [0.03%]
美国纽约州莫霍甘阶沃特科姆-拉斯 quarry 三维保存的奇虾外肢形态的保守性研究
Sarah R Losso,Javier Ortega-Hernández
Sarah R Losso
Trilobites were extremely abundant and diverse euarthropods from the Paleozoic Era, but our understanding of their non-biomineralized ventral morphology is restricted to localities with exceptional fossil preservation. The Ordovician-aged W...
The female reproductive system of the sea spider Phoxichilidium femoratum (Rathke, 1799) [0.03%]
Rathke海蜘蛛Phoxichilidium femoratum的雌性生殖系统
Maria Petrova,Ekaterina Bogomolova
Maria Petrova
Sea spiders (Pycnogonida) are marine chelicerates. Current pycnogonid phylogeny based on molecular data remains uncertain and contradicts traditional morphological perspectives. To resolve this conflict, understanding their inner anatomy is...
Anatomy and ultrastructural details of the eye of the passalid beetle Ceracupes yui Okano 1988 (Scarabaeoidea; Passalidae) [0.03%]
奥卡诺1988年描述的拟步甲属姬拟步甲(Ceracupes yui)的眼部解剖及超微结构特征
Victor Benno Meyer-Rochow,Nobuo Gokan
Victor Benno Meyer-Rochow
One of the least studied eyes of any beetle taxon are those of the scarabaeoid family Passalidae. Some members of this family of around 600 species worldwide are known to have superposition eyes (Aceraius grandis; A. hikidai) while others h...
Jakub Prokop,Kateřina Rosová,Martina Pecharová et al.
Jakub Prokop et al.
Permopsocids are small acercarian insects with mouthparts specialized for sucking. They are closely related to Hemiptera and Thysanoptera. The earliest known representatives are from the Early Permian. Here evidence is presented that the Pe...
Morphological and functional analyses for investigation of sexually selected legs in the frog legged beetle Sagra femorata (Coleoptera: Chrysomelidae) [0.03%]
蛙腿甲虫Sagra femorata性选择腿的形态和功能分析
Masako Katsuki,Kaoru Uesugi,Tomoyuki Yokoi et al.
Masako Katsuki et al.
Mate choice and male-male combat over successful mating often cause disproportionate exaggeration of male trait relative to body size. However, the exaggeration is often not the only trait involved with male-male combat and mate choice: sui...
Not all apparently gynandromorphic butterflies are gynandrous: The case of Polyommatus icarus and its relatives (Lepidoptera: Lycaenidae) [0.03%]
并非所有外观上雌雄同体的蝴蝶都是雌雄同体的情况：Polyommatus icarus及其近亲（鳞翅目：凤蝶科）的例子
Zsolt Bálint,Gergely Katona,Krisztián Kertész et al.
Zsolt Bálint et al.
Beside the more than two thousand normal specimens of Polyommatus icarus (Rottemburg, 1775) yielded by rearing experiments, there was one perfectly bilateral dichromatic individual first considered to be gynandrous. On the basis of analysin...
The ultrastructure of the spermatheca of Mordellistena brevicauda (Coleoptera, Tenebrionoidea) and the associated bacterial cells [0.03%]
拟步甲科昆虫隐翅虫属短尾隐翅虫种精腺的超微结构及其与细菌的关系
Romano Dallai,David Mercati,Pietro Lupetti
Romano Dallai
The ultrastructural study on the female reproductive system of the beetle M. brevicauda (Mordellidae) confirmed the positive correlation between the length of the sperm and the size of the female seminal receptacle (Spermatheca). The sperma...