Female calling, life cycle, and microstructures of the parasitic beetle <i>Ripidius quadriceps</i> Abeille de Perrin

Batelka, Jan; Straka, Jakub; Vávra, Jiří; Škorpík, Martin; Prokop, Jakub

doi:10.1002/jmor.21325

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…Members of the parasitic Ripiphoridae are known for their augmented, serrate, flabellate or even biflabellate antennae, used in sexual communication (Batelka et al . 2021b, 2022).…”

Section: Discussionmentioning

confidence: 99%

The Earliest Representative of Eorhipidiini (Tenebrionoidea: Ripiphoridae: Ripidiinae) Discovered in Cretaceous Amber

Batelka

Prokop

2023

Annales Zoologici

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A new genus and species of wedge-shaped beetle of Eorhipidiini (Coleoptera: Ripiphoridae: Ripidiinae) is described from Cretaceous amber of Myanmar ('Burmese amber'). It represents the only known fossil of this tribe. The species is remarkable for the combination of derived characters shared with the extant genus Pterydrias Reitter, 1895 (i.e., absence of tibial spurs, simplified antennae, and prolonged 4-segmented maxillary palpi) with recurved mandibles similar to those in the ancestral lineages Pelecotominae and Ptilophorinae. To accommodate this peculiar specimen a new genus and species Eodrias mandibularis gen. et sp. nov. are established. A key for all known species of the tribe, for which so far only males are known, is provided. In addition, the systematic position of fossil beetle Asiamordella furvis Hong, 2002 from Early Eocene Fushun amber (China), assigned originally to the family Mordellidae, is evaluated. Its placement within Mordellidae is refuted. Based on the set of characters given in the description it is suggested that the specimen may represent an unknown female morphotype of Ripidiinae and the tribe Eorhipidiini is a possible candidate. Discussion of the systematic position of the newly described genus is supported by a phylogenetic analysis including for the first time morphological characters of extant and fossil genera and larvae of all subfamilies of Ripiphoridae.

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“…Members of the parasitic Ripiphoridae are known for their augmented, serrate, flabellate or even biflabellate antennae, used in sexual communication (Batelka et al . 2021b, 2022).…”

Section: Discussionmentioning

confidence: 99%

The Earliest Representative of Eorhipidiini (Tenebrionoidea: Ripiphoridae: Ripidiinae) Discovered in Cretaceous Amber

Batelka

Prokop

2023

Annales Zoologici

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“…Slightly narrowed and dehiscent elytra can be found in several other groups, including, for instance, the tribe Macrosiagonini (Ripiphorinae). In some species characterised by brachelytrous males (e.g., Ripidius Thunberg), females lack elytra and hind wings and are larviform (Batelka et al, 2021). All species of Ripiphoridae studied to date are parasites of other insects during some portion of their development and use wood-boring beetles, cockroaches (Blattodea) or various hymenopterans as hosts (Lawrence, Falin & Ślipi nski, 2010).…”

Section: Superfamily Tenebrionoideamentioning

confidence: 99%

When a key innovation becomes redundant: Patterns, drivers and consequences of elytral reduction in Coleoptera

Goczał,

Beutel,

Gimmel

et al. 2023

Systematic Entomology

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The transformation of the fore wings into strongly sclerotized protective covers (elytra) is considered a fundamental evolutionary innovation of the megadiverse order Coleoptera. Surprisingly, these multifunctional structures have been reduced in many distantly related groups of beetles. Patterns, drivers and the evolutionary implications of this modification have never been comprehensively discussed. In the present study, we surveyed the entire order Coleoptera to analyse the patterns of elytral shortening and loss, with a special focus on prevalence, forms, degree of reduction and the functional background of this significant deviation from the coleopteran ground plan. Our analysis revealed that about 20% of all extant species (roughly 88,000 out of 442,275 spp.), distributed across all four suborders, have shortened or even absent elytra. The elytral loss was more frequent within the polyphagan series Elateriformia and Staphyliniformia. Moreover, we found that elytral reduction has independently occurred multiple times in the evolutionary history of Coleoptera and that it has been driven by a wide array of selective drivers. One of the main drivers is the improved flexibility of the uncovered abdomen and the correlated increased manoeuvrability in narrow spaces, as well as the option of using the flexible abdomen as a steering organ or to facilitate mating. Another common driver is mimicry, where exposed metathoracic wings potentially improve the overall similarity to hymenopteran models. Exposure of the abdomen can facilitate the targeted release of defensive abdominal gland secretions and was most likely a crucial step towards establishing relations with social insects enhanced by chemical communication. In the Elateriformia, and rarely in other lineages, elytral loss is a consequence of paedomorphosis, related to a specific resource‐allocation strategy. In many groups of beetles with reduced elytra, alternative defensive strategies can be found. This includes, for instance, aposematic coloration, chemical defence, mimicry or bioluminescence. Direct drivers of elytral loss in many groups remain unclear, and more studies are needed to understand the evolutionary background and implications of this significant morphological modification in Coleoptera.

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Relationships of Cretaceous Ripiphoridae (Coleoptera) based on larval morphology, with evidence for the same reproduction timing and chosen microhabitat for oviposition

Batelka,

Weingardt,

Bock

et al. 2024

CTE

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Five specimens of primary larvae of Ripiphoridae (Insecta: Coleoptera) are reported from one piece of Cretaceous Kachin amber. They represent two morphotypes: one conicocephalate and one belonging to the tribe Ripidiini (represented by four specimens). The conicocephalate morphotype is compared with similar larvae known from Kachin, Taimyr and Manitoba Cretaceous amber, and the larvae of Ripidiini are compared with their Cretaceous, Eocene and extant relatives. Phylogenetic analyses were performed to establish a working hypothesis about possible relationships of both lineages. The results, which conform with a recent molecular phylogeny, indicate that the larvae described here belong to Ripidiini or are closely related, respectively. To allow taxonomic and systematic work with conicocephalate larvae from Kachin amber, a collective group name †“Ripilarva” nov. is proposed here to accommodate these immature stages. Both species of †“Ripilarva” nov. from Kachin amber are described: †“R.” parabolicasp. nov. and †“R.” kachinensissp. nov. Syninclusion of †“Ripilarva” kachinensissp. nov. and four larvae of a species of Ripidiini indicate that females of both ripiphorids chose the same time and microhabitat for oviposition in the Kachin Cretaceous forest. The results are further verified by the use of UV-photography, as the different larval morphotypes occurred in the same resin flow. The presence of larvae of Ripidiini in clusters contrary to the solitary occurrence of †“Ripilarva” nov. in Cretaceous amber of Russia, Canada, USA, and Myanmar is interpreted as a possible result of different oviposition strategies, with different numbers of eggs deposited at one spot. Graphical abstract

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Female calling, life cycle, and microstructures of the parasitic beetle Ripidius quadriceps Abeille de Perrin

Cited by 3 publications

References 32 publications

The Earliest Representative of Eorhipidiini (Tenebrionoidea: Ripiphoridae: Ripidiinae) Discovered in Cretaceous Amber

The Earliest Representative of Eorhipidiini (Tenebrionoidea: Ripiphoridae: Ripidiinae) Discovered in Cretaceous Amber

When a key innovation becomes redundant: Patterns, drivers and consequences of elytral reduction in Coleoptera

Relationships of Cretaceous Ripiphoridae (Coleoptera) based on larval morphology, with evidence for the same reproduction timing and chosen microhabitat for oviposition

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