Arthropod Structure & Development最新文献

Glomerular organization of the antennal lobe in the fall webworm Hyphantria cunea (Drury, 1770)

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-02-20 DOI: 10.1016/j.asd.2025.101422

Ying Lu , Yi Yang , Lu-Yao Yu , Hong-Bo Jin , Bing-Zhong Ren , Qi Chen

{"title":"Glomerular organization of the antennal lobe in the fall webworm Hyphantria cunea (Drury, 1770)","authors":"Ying Lu , Yi Yang , Lu-Yao Yu , Hong-Bo Jin , Bing-Zhong Ren , Qi Chen","doi":"10.1016/j.asd.2025.101422","DOIUrl":"10.1016/j.asd.2025.101422","url":null,"abstract":"<div><div>The fall webworm (<em>Hyphantria cunea</em>), a typical destructive invasive pest, has caused substantial damage to both the ecological environment and economy in China. <em>H. cunea</em> uses primarily its antennae to locate food and perceive pheromones through stimulation of olfactory receptor neurons. These receptor neurons project their axons into glomeruli within the antennal lobes, the primary olfactory center in the brain. The projection patterns of sensory antennal neurons into the antennal lobe and its precise structure have not been described so far. To decipher the primary organization behind olfactory recognition in <em>H. cunea</em>, this study employed synaptic antibody immunostaining, as well as mass staining of olfactory sensory neurons (OSNs), and computer-based reconstruction to establish a three-dimensional olfactory glomerular map of the moth's antennal lobes. A total of 74 male and 81 female antennal lobe glomeruli were identified, including 3 male-specific glomeruli (Macroglomerular complex, MGC) and 8 female-specific glomeruli (DL1-DL8). While the Cumulus (Cu) volume was largest in MGC, the differences in volume among dorsomedial anterior and dorsomedial posterior were minimal. These findings lay the groundwork for a better understanding of the olfactory anatomical organization in <em>H. cunea</em>.</div></div>","PeriodicalId":55461,"journal":{"name":"Arthropod Structure & Development","volume":"85 ","pages":"Article 101422"},"PeriodicalIF":1.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The first detailed morphological treatment of a Cretaceous psocid and the character evolution of Trogiomorpha (Insecta: Psocodea)

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-02-19 DOI: 10.1016/j.asd.2025.101409

Michael Weingardt , Feiyang Liang , Brendon E. Boudinot , Jörg U. Hammel , Bernhard L. Bock , Kazunori Yoshizawa , Rolf G. Beutel

{"title":"The first detailed morphological treatment of a Cretaceous psocid and the character evolution of Trogiomorpha (Insecta: Psocodea)","authors":"Michael Weingardt , Feiyang Liang , Brendon E. Boudinot , Jörg U. Hammel , Bernhard L. Bock , Kazunori Yoshizawa , Rolf G. Beutel","doi":"10.1016/j.asd.2025.101409","DOIUrl":"10.1016/j.asd.2025.101409","url":null,"abstract":"<div><div>While new fossil psocid taxa are described every year, the morphology is generally not studied and documented in sufficient detail, limiting our understanding of the character evolution in this order. A new fossil species of the genus <em>Psyllipsocus</em> from mid-Cretaceous Kachin amber is described and its morphology reconstructed in detail using synchrotron-radiation micro-computed tomography (SR-μ-CT). We present the first cybertype of a Cretaceous fossil psocid. We also describe and discuss the putative evolution of previously unrecognized and underestimated exoskeletal characters for the suborder Trogiomorpha. Additionally, using our new observations, we critically evaluate the phylogeny of Trogiomorpha and the character evolution in this group. We also present a modified character matrix which we analyze using Bayesian inference and parsimony. Based on our results and previous studies we propose monophyletic Trogiomorpha <em>s.l.</em> (incl. †<em>Brachyantennum</em>) and Trogiomorpha <em>s. str.</em> (possibly incl. †Cormopsocidae), the latter comprising Prionoglarididae and monophyletic Spinaprocta. Spinaprocta contain Atropetae and Psyllipsocetae (incl. <em>Psyllipsocus</em>) as sister taxa. Some relationships on the genus level in Trogiomorpha are still strongly disputed and unclear. Here, we synonymize the extinct monotypic genus †<em>Khatangia</em> with <em>Psyllipsocus</em> and discuss the systematic position of †<em>Sinopsyllipsocus</em>, †<em>Parapsyllipsocus</em>, †<em>Empheriopsis</em> and †<em>Concavapsocus</em>. A key for all extinct species of Psyllipsocidae is provided.</div></div>","PeriodicalId":55461,"journal":{"name":"Arthropod Structure & Development","volume":"85 ","pages":"Article 101409"},"PeriodicalIF":1.7,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Postembryonic development and morphological variations of larval instars in the scorpionfly Panorpa liui Hua (Mecoptera: Panorpidae)

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-02-06 DOI: 10.1016/j.asd.2025.101414

Yue-Ling Wu, He-Hong Wang, Le-Le He, Bao-Zhen Hua

引用次数: 0

Editorial 2025

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-01-01 DOI: 10.1016/j.asd.2025.101412

Gerhard Scholtz, Steffen Harzsch

引用次数: 0

Form-function relationships of the compound eyes and sensory sensilla of a tiny arboreal hemipteran herbivore: Adaptations for close encounters with leaves

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-01-01 DOI: 10.1016/j.asd.2024.101407

Reza Tanha , Jan M. Hemmi , Anna–Lee Jessop , Alan T. Marshall , Richard A. Peters , Martin J. Steinbauer

{"title":"Form-function relationships of the compound eyes and sensory sensilla of a tiny arboreal hemipteran herbivore: Adaptations for close encounters with leaves","authors":"Reza Tanha , Jan M. Hemmi , Anna–Lee Jessop , Alan T. Marshall , Richard A. Peters , Martin J. Steinbauer","doi":"10.1016/j.asd.2024.101407","DOIUrl":"10.1016/j.asd.2024.101407","url":null,"abstract":"<div><div>Herbivorous insects experience diverse plant stimuli, the relative influence of which depends upon the scale of the interface between both organisms and the insect’s life history. Using microCT and SEM, we conducted a whole insect study of the sensory structures of <em>Glycaspis brimblecombei</em> (Hemiptera: Psylloidea; commonly called psyllids or jumping plant lice) to understand this tiny insect’s utilisation of the leaves of their tree hosts – especially to reconcile rapid host assessment <em>versus</em> protracted, sinuous searching behaviours. Each compound eye comprises 360 ommatidia of relatively uniform density and facet diameter indicating limited spatial resolution and sensitivity. The areas of highest relative sampling resolution are not directed ventrally towards the surface of leaves but laterally and dorsally. There is a high abundance of chemo- and mechanosensory sensilla on the genal cones (216–240) and fewer on the terminalia (120–150), i.e. body parts regularly in contact with leaf surfaces. There are even fewer such sensilla on the basitarsi (10–16) and only putative olfactory sensilla on the antennae. Leaf surface conformation probably guides females to veins while contact chemoreception likely stimulates probing; the number of eggs deposited is likely determined by the flow and quality of nutrients experienced during feeding. For this psyllid, vision aids movements among leaves and relocation of hosts if dislodged by wind or escaping predators. Walking, as opposed to flying, maintains continuity of exposure to plant stimuli essential to maximising reproductive success. Such a life history is possible on large, evergreen hosts and is facilitated by rapid accept/reject discrimination of ingesta.</div></div>","PeriodicalId":55461,"journal":{"name":"Arthropod Structure & Development","volume":"84 ","pages":"Article 101407"},"PeriodicalIF":1.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evidence for the independent evolution of a rectal complex within the beetle superfamily Scarabaeoidea 甲虫超科甲虫总科中直肠复合体独立进化的证据。

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-01-01 DOI: 10.1016/j.asd.2024.101406

Robin Beaven , Barry Denholm , Maria Fremlin , Davide Scaccini

{"title":"Evidence for the independent evolution of a rectal complex within the beetle superfamily Scarabaeoidea","authors":"Robin Beaven , Barry Denholm , Maria Fremlin , Davide Scaccini","doi":"10.1016/j.asd.2024.101406","DOIUrl":"10.1016/j.asd.2024.101406","url":null,"abstract":"<div><div>Rectal or cryptonephridial complexes have evolved repeatedly in arthropods, including in beetles where they occur in ∼190,000 species of Cucujiformia + Bostrichoidea, and Lepidoptera where they occur in ∼160,000 species. Sections of the Malpighian/renal tubules coat the outer surface of the rectum, acting as powerful recycling systems of the gut contents, recovering water and specific solutes. There are hints that a rectal complex evolved independently within another beetle group, Scarabaeoidea. Here we report our observations of rectal complexes in Scarabaeoidea, which support this view. We did not find a rectal complex in the related group, Staphylinoidea, or in Lucanidae, a basal group of Scarabaeoidea. We did observe rectal complexes in <em>Melolontha melolontha</em> (Melolonthini), <em>Pachnoda marginata</em> and <em>Cetonia aurata</em> (Cetoniinae), consistent with previous reports from these groups. Intriguingly we found that rectal complexes occur in adult, but not <em>M. melolontha</em> larvae, and larvae but not adults within Cetoniinae, indicating dramatic pupal remodelling of these organ systems. Insights into the structure of the rectal complexes of Scarabaeoidea are compared with the well-studied rectal complexes of Cucujiformia. Finally, we discuss possible functions of the rectal complexes of beetles within Scarabaeoidea, and future approaches to address this question.</div></div>","PeriodicalId":55461,"journal":{"name":"Arthropod Structure & Development","volume":"84 ","pages":"Article 101406"},"PeriodicalIF":1.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

It's ‘claw’-some: Ontogenetic claw shape changes in mites (Acari, Oribatida) as a consequence of ecological shifts 它的 "爪 "很美：螨虫（螨类，Oribatida）在个体发育过程中的爪形变化是生态变化的结果。

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-01-01 DOI: 10.1016/j.asd.2024.101405

Tobias Pfingstl, Michaela Kerschbaumer

{"title":"It's ‘claw’-some: Ontogenetic claw shape changes in mites (Acari, Oribatida) as a consequence of ecological shifts","authors":"Tobias Pfingstl, Michaela Kerschbaumer","doi":"10.1016/j.asd.2024.101405","DOIUrl":"10.1016/j.asd.2024.101405","url":null,"abstract":"<div><div>Claw characteristics of oribatid mites are strongly correlated with environmental factors and these characters remain constant throughout development when immatures and adults share the same ecology and lifestyle. In the present study, claw traits of oribatid mite species with constant ecology were compared with those of species showing a clear ecological shift between juvenile and adult stage. The arboreal <em>Sellnickia caudata</em> and the saxicolous <em>Niphocepheus nivalis</em> dwell in the same microhabitat during their life-cycle, whereas immatures of the terrestrial <em>Carabodes areolatus</em> and <em>Mycobates carli</em>, as well as of the aquatic <em>Hydrozetes lemnae</em>, are, in contrast to their adults, endophagous, meaning they feed and burrow within lichen and plant tissue. We performed a geometric morphometric investigation of their claws and could reveal significant differences in the claw shapes of immatures and adults of all species, except for <em>N. nivalis</em>. Claws of the endophagous juveniles of <em>C. areolatus</em>, <em>M. carli</em> and <em>H. lemnae</em> are generally sharper and higher than those of their adult counterparts. The burrowing lifestyle of the immatures apparently necessitates such specific claw morphologies. Despite having a constant ecology, the arboreal <em>S</em>. <em>caudata</em> also shows distinct differences between immature and adult claw traits, with juveniles possessing stronger curved and sharper claws. But immature stages also possess an additional tarsal adhesive pad which lacks in the adult stage. The presence or absence of this additional adhesive pad apparently requires changes in claw morphology to allow firm attachment on diverse plant surfaces. The present results demonstrate that claw characteristic can change during the development depending on the given ecological factors faced by each developmental stage and depending on the presence of additional attachment devices.</div></div>","PeriodicalId":55461,"journal":{"name":"Arthropod Structure & Development","volume":"84 ","pages":"Article 101405"},"PeriodicalIF":1.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The ultrastructure of sperm and the female storage organ in the backswimmer Notonecta glauca (Hemiptera: Notonectidae) and the coevolution of these two structures

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-01-01 DOI: 10.1016/j.asd.2025.101410

Mariangela Gentile, David Mercati, Pietro Paolo Fanciulli, Pietro Lupetti, Romano Dallai

{"title":"The ultrastructure of sperm and the female storage organ in the backswimmer Notonecta glauca (Hemiptera: Notonectidae) and the coevolution of these two structures","authors":"Mariangela Gentile, David Mercati, Pietro Paolo Fanciulli, Pietro Lupetti, Romano Dallai","doi":"10.1016/j.asd.2025.101410","DOIUrl":"10.1016/j.asd.2025.101410","url":null,"abstract":"<div><div>This study describes the coevolution of sperm length and female spermatheca size in the backswimmer <em>Notonecta glauca</em>. The species exhibits exceptionally long sperm, characterized by an unusually elongated acrosome, a short nucleus, and a long flagellum featuring a conventional 9 + 9+2 microtubular axoneme and two large mitochondrial derivatives. The spermatheca is equally elongated, comprising a spiralized proximal tract with a unique and novel ultrastructure, a long middle cuticular duct, and a terminal bulb. The spiralized region is lined by an epithelium covered with an extraordinarily thick cuticle composed of orthogonal pillars that terminate in pointed apices. In mated females, a thick secretion layer accumulates between the cuticle and the epithelium, which is enriched with mitochondrial complexes. A comparative analysis of virgin and mated females suggests that the epithelium in mated females actively reabsorbs fluid from the duct lumen. The cuticular duct, a simple and elongated tract, has its lumen compartmentalized by cuticular projections. The terminal bulb, in turn, features an epithelium made up of secretory cells with an extracellular cistern for secretion storage and duct-forming cells rich in longitudinal microtubules. These cells are equipped with ducts that transport the stored secretion to the lumen. Overall, the findings confirm that the size of the female spermatheca influences sperm morphology, underscoring a tight coevolution between these traits.</div></div>","PeriodicalId":55461,"journal":{"name":"Arthropod Structure & Development","volume":"84 ","pages":"Article 101410"},"PeriodicalIF":1.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensilla on the maxillary palp of cave and surface-dwelling species of the genus Tachycines (Orthoptera: Rhaphidophoridae)

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-01-01 DOI: 10.1016/j.asd.2025.101411

Xiaoying Zhang , Xiaolong Hou , Shihui Huang , Kesong Yin , Changqing Luo

{"title":"Sensilla on the maxillary palp of cave and surface-dwelling species of the genus Tachycines (Orthoptera: Rhaphidophoridae)","authors":"Xiaoying Zhang , Xiaolong Hou , Shihui Huang , Kesong Yin , Changqing Luo","doi":"10.1016/j.asd.2025.101411","DOIUrl":"10.1016/j.asd.2025.101411","url":null,"abstract":"<div><div>Due to caves' environmental features (e.g., darkness and food limitation), cave-dwelling insects have evolved well-developed sensory systems. The habitats of the camel crickets of <em>Tachycines</em> are diverse, found both in cave and surface ecosystems. This study aims to clarify the sensilla types and distribution on the maxillary palp in male adults of the surface-dwelling <em>Tachycines huaxi</em> and cave-dwelling <em>Tachycines shuangcha</em>. The morphology and sensilla on the maxillary palp were observed using scanning electron microscopy. The maxillary palps of the two <em>Tachycines</em> species consist of five segments with varying lengths. Seven types of sensilla were recorded on maxillary palp of both species: sensilla chaetica (Sc.1–3), sensilla trichodea (St.1–2), sensilla palmatum (Sp), Böhm's bristles (Bb), sensilla campaniformia (Sca), sensilla basiconica (Sb.1–4), and sensilla coeloconica (Sco). The sensilla are primarily located on the fifth palpomere ofmaxillary palp. Sb.2 were found exclusively on maxillary palp of the species <em>T. huaxi</em>. The distribution of sensilla was similar between <em>T. shuangcha</em> and <em>T. huaxi</em>, but sensilla of the two species differed in length, diameter, and number. The potential functions of these sensilla, and possible morphological adaptations to the cave environments exhibited by the maxillary palp of the cavernicolous <em>T. shuangcha</em> are discussed.</div></div>","PeriodicalId":55461,"journal":{"name":"Arthropod Structure & Development","volume":"84 ","pages":"Article 101411"},"PeriodicalIF":1.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143127859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights into morphology of the ‘columnar epithelium’ within the female reproductive system of brachyuran crabs 短爪蟹雌性生殖系统中“柱状上皮”形态的观察。

IF 1.7 3区农林科学

Arthropod Structure & Development Pub Date : 2025-01-01 DOI: 10.1016/j.asd.2024.101408

Nicole Schröter , Urska Repnik , Dirk Brandis

引用次数: 0