Quantitative morphology of fossil adephagan beetle larvae including a first record from the Jehol biota does not indicate major diversity losses over time DOI Open Access
Joachim T. Haug, Yanzhe Fu, Patrick Müller

и другие.

Zootaxa, Год журнала: 2024, Номер 5562(1), С. 76 - 93

Опубликована: Дек. 30, 2024

Coleoptera is a hyper-diverse group of animals with about 400,000 formally described species. Also the morphological diversity beetles very high, not only in adults, but also larvae. To understand evolutionary origin this enormous diversity, investigations fossils are crucial, especially for larvae such fossil still scarce. In study, we present 15 new from different deposits Cretaceous to Miocene age, which interpret as beetle ingroup Adephaga. Most these three-dimensionally preserved and either embedded amber or silicified. One specimen compression fossil, rare larvae, represents first report an adephagan larva Early Jehol biota China. Of all previously known selected extant ones shapes head capsules mandibles were compared quantitative morphology methods (elliptic Fourier analysis principal component analysis). The lie within morphospace those indicates that highest aspect modern fauna, hence no loss occurred. Other lineages Holometabola show similar patterns, indications larval diversifications already Cretaceous, further specialisation afterwards, major losses. This pattern may be reason species richness certain holometabloan groups fauna.

Язык: Английский

Cretaceous beetles of the Jinju Formation (Coleoptera): An overview of the Jinju Formation, its coleopteran diversity, and past and future research DOI

Soo Bin Lee,

Yanda Li, Chenyang Cai

и другие.

Journal of Asia-Pacific Entomology, Год журнала: 2024, Номер 27(2), С. 102236 - 102236

Опубликована: Март 27, 2024

Язык: Английский

Процитировано

3

Evolutionary changes in the ovipositor shape of xyelid sawflies (Hymenoptera: Xyelidae) revealed by early fossils DOI
Nozomu Oyama, Haruyoshi Maeda, Alexandr P. Rasnitsyn

и другие.

Insect Systematics and Diversity, Год журнала: 2025, Номер 9(1)

Опубликована: Янв. 1, 2025

Abstract Considering taxonomic diversity, extant xyelid sawflies represent a very small subset of the past diversity group. A complementary approach to investigate evolutionary changes in this family is consider ovipositor morphology, an ecologically important organ. New, well-preserved specimens from Upper Triassic Ominé locality (Momonoki Formation, Mine Group; Carnian; Japan) and belonging †Madygellinae, one earliest Xyelidae subfamilies, are newly described assigned four new species, three genera (one being new). Two expose body parts wings, providing information regarding morphology. To further appreciate evolution organ, we surveyed both fossil Xyelidae. Extant forms display extremes range types, namely high aspect ratio “dagger-like” “needle-like” types (in Xyelinae) low “short wide” type Macroxyelinae). All known representatives types. In contrast, Middle Jurassic Lower Cretaceous show highest for family. Afterwards, observed declined concentrated on two, distinct nowadays. Decline disparity was not contemporaneous Xyelinae Macroxyelinae: specialization occurred during Jurassic-Cretaceous transition Xyelinae, while Macroxyelinae displayed their peak Cretaceous, with postponed decline. Ovipositor shape probably accompanied larval diet change Macroxyelinae. therefore contributes depicting as once more diverse

Язык: Английский

Процитировано

0

Unravelling the evolution of mycetophagy and phytophagy in fungus weevils (Curculionoidea: Anthribidae): Phylogenomic insights into Anthribinae paraphyly and tribal non‐monophyly DOI Open Access
Duane D. McKenna, Rolf G. Oberprieler, Adriana E. Marvaldi

и другие.

Systematic Entomology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Abstract Fungus weevils (family Anthribidae) are morphologically and ecologically diverse, with highly varied feeding habits, mainly mycetophagy but also phytophagy, palynophagy entomophagy. The phylogeny of the family is virtually unexplored, its evolutionary history obscure; thus, existing classification controversial likely artificial. We generated first multi‐gene higher‐level estimate Anthribidae using DNA data from 400 nuclear genes obtained via anchored hybrid enrichment 40 species representing 17 tribes plus genera incertae sedis . As in previous studies, was consistently recovered as sister group Nemonychidae. two main clades groups strong statistical support, viz. a monophyletic subfamily Urodontinae traditionally recognized Anthribinae, which rendered paraphyletic by Choraginae. Paraphyly polyphyly among Anthribinae indicate that current tribal concepts—all based on morphology without phylogenetic analysis—are Based our results, we subsume Choraginae into place six (Apolectini, Araecerini, Choragini, Cisanthribini, Valenfriesiini Xenorchestini) an expanded Anthribinae. transfer three currently treated to generally tribes, namely Pleosporius Holloway Sintorini, Xylanthribus Kuschel Proscoporhinini Anthribidus Fåhraeus Platystomini. positions Trigonorhinini suggest phytophagy ancestral mode Anthribidae, few taxa having secondarily evolved plant‐feeding mycetophagy, predominant habit subfamily. Overall, results provide molecular context for research step towards reconstructing natural Our study highlights need approach, sampling type deeper taxon identify tribal‐level groupings.

Язык: Английский

Процитировано

0

Redescription of the highly specialized aquatic †Tigrivia and the classification of the Mesozoic †Coptoclavidae (Coleoptera, Adephaga, Dytiscoidea) DOI
Liang Bao, Rolf G. Beutel, Kecheng Niu

и другие.

Zootaxa, Год журнала: 2025, Номер 5588(3), С. 401 - 425

Опубликована: Фев. 16, 2025

†Tigrivia baii, a highly specialized aquatic beetle assigned to the adephagan †Coptoclavidae, is redescribed and documented in detail. The observed morphological features are discussed with respect function, phylogenetic significance, current classification of Mesozoic family. Cladistic analyses indicate that sister taxon †Coptoclava. Both may be closely related †Daohugounectes, but this was not confirmed by analyses. genus, more advanced than †Coptoclava, showing range suggesting evolutionary parallels Gyrinidae, i.e. long raptorial forelegs, very small prosternal process, an unusually large mesoventrite without hexagonal groove, apically truncated elytra, exposed appendices abdominal segment VIII. However, detailed assessment these analysis revealed derived characteristics have evolved independently whirligig beetles. other beetles †Coptoclavidae were likely facultative surface hunters, less which can swim rapidly on film paddle-like short middle hind legs. In any case †Coptoclava active predators, preying fishes amphibian larvae. monophyletic, same probably true for most subfamilies, especially †Necronectinae (= †Timarchopsinae). While many coptoclavid taxa display subdivided compound eyes upper lower subunit, feature synapomorphy since it found all genera. Groups metacoxae haliplid or trachypachid type, mesal walls fused posterior plates, apparently do belong Dytiscoidea, should removed from †Coptoclavidae. rest family, characterized extensively metacoxal largely reduced coxal plates clade comprising dytiscoid families except Noteridae Meruidae.

Язык: Английский

Процитировано

0

Morphological adaptations of beetles to changing living conditions in the Permian and the Mesozoic DOI
Rolf G. Beutel, Margarita Yavorskaya

Elsevier eBooks, Год журнала: 2025, Номер unknown, С. 419 - 437

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

A review of the species groups of the Western Hemisphere Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae) using COI barcoding and gene trees DOI
Bert Kohlmann, Ángel Solís

Zootaxa, Год журнала: 2025, Номер 5604(4), С. 401 - 447

Опубликована: Март 16, 2025

Species groups of Western Hemispheric Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae: Onthophagini) are suggested using COI barcoding and gene trees supported by congruence with external morphology, behavior, ecology, biogeographic evidence. New species groups, complexes, taxonomic statuses offered, other preexisting proposals confirmed. No gap w as found between the intragroup intergroup genetic distance blocks, but average (8.38%) (13.88%) Kimura-two-parameter distances statistically different. The following seven were mtDNA barcode analysis independent evidence: O. chevrolati, clypeatus, dicranius, gazellinus, hircus, landolti, mexicanus. Eight new suggested: crinitus, curvicornis, eulophus, hecate, hoepfneri, marginatus, nasutus, velutinus. Possible behavioral/ecological adaptations morphological characters also discussed. evolutionary hypotheses advanced. An identification key for is presented.

Язык: Английский

Процитировано

0

Phylogenomics resolves the relationships among Hydrophiloidea‐Histeroidea families (Coleoptera) and challenges the single colonization of aquatic habitats DOI
Dominik Kusy, Michal Motyka,

Jan Simon‐Pražák

и другие.

Systematic Entomology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 23, 2025

Abstract Beetle superfamilies Histeroidea and Hydrophiloidea form a well‐supported monophylum with c. 9000 described species, but the relationships among families remain unresolved, hindering studies of early evolution group. This study presents first genomic data for all modern families, including genomes Synteliidae, Sphaeritidae, Georissidae Epimetopidae. Using datasets 4215, 1100 709 protein‐coding genes, we reconstructed reconfirmed Early Triassic split Histeroidea, revealed to Middle Jurassic origin families. All analytical methods same topology Hydrophiloidea. The superfamily consists two main clades: helophorid lineage (Georissidae + Helophoridae Hydrochidae) hydrophilid (Epimetopidae Spercheidae Hydrophilidae), Hydrochidae Hydrophilidae as strongly supported clades; riparian Epimetopidae branching clades in each lineage. In detected significant conflict phylogenetic signal, indicating more complex dynamic molecular than Hydrophiloidea: our analyses reject Synteliidae sister Histeridae are not decisive on whether Sphaeritidae or other Histeroidea. reconstruction habitat preferences indicated that ancestral inhabited moist substrates at sides lakes rivers were aquatic. Aquatic habitats colonized twice independently: once by an ancestor Hydrophilidae. We discuss evidence against this novel Riparian Ancestor Hypothesis detail.

Язык: Английский

Процитировано

0

Before the Black Box DOI Creative Commons
Caitlyn L Perry, Charles Robin

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Апрель 19, 2025

Abstract Ecdysteroid hormones are responsible for regulating arthropod moulting, but unlike other taxa which used sterol-derived (e.g. vertebrate sex-determining hormones), arthropods cannot synthesis sterols de novo . is thus dependent on funnelling diverse dietary into the conserved reactions of ecdysteroidogenesis. While later steps ecdysteroid dominated by cytochrome P450s, earlier stages this pathway (i.e. those acting in or before ‘Black Box’ 7-dehydrocholesterol converted to 5,22,25-trideoxyecdysone) involve more enzymes. numerous comparative analyses P450s have been conducted, little comparable work has done pre-Black Box FAD-dependent oxidoreductase DHCR24 and Rieske domain oxygenase Neverland Black short-chain dehydrogenase/reductase Shroud. However, there some evidence evolutionary shifts among these enzymes across arthropods, e.g. absence from Drosophila melanogaster We sought systematically identify such changes copy number DHCR24, Shroud as well correlations between factors with reference literature. Among results, we find that absent all beetles (providing support mycophagy an important element beetle ancestral diet) losses correlate production alkylated ecdysteroids.

Язык: Английский

Процитировано

0

Updated catalog of world fossil Cantharidae, with description of two new species, plus taxonomic information DOI Creative Commons
Fabrizio Fanti

Historia naturalis bulgarica, Год журнала: 2025, Номер 47(5), С. 107 - 124

Опубликована: Май 2, 2025

An updated catalogue of the world’s fossil Cantharidae is provided and some taxonomic acts are proposed: Poinarelektronmiles Fanti & Damgaard, 2020 bonum genus; ellenbergeri comb. rest.; cuaroni Bramanti Fanti, 2022 Sanaungulus lethi dominikiweissbachi P. Müller, kachinensis Trapezioceps longelytrus Kundrata, Packova, Li, Hsiao, Shaw, Ferreira, Bai Cai, 2023 unjustified emendation; angustipennis (Y. Yang, W. Zhao H. Liu, 2024b) nov.; Burmomiles Y. 2024a unavailable name; dentatus recticollis ruficollis Liu Zhao, inappropiate strungei 2019 rest. returns to genus as in original description; undecimus incertae sedis because it clearly not a Sanaungulus. Additional information also presented, two new species: Mimoplatycis usa sp. nov. from Eocene Rovno amber, Electronycha arturmichalskii Baltic amber illustrated described.

Язык: Английский

Процитировано

0

Biotectonic analysis of Tasmania-New Zealand connections with special reference to Coleoptera DOI
Bernard Michaux, Richard A. B. Leschen

New Zealand Entomologist, Год журнала: 2025, Номер unknown, С. 1 - 19

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0