Evolution of the Multifunctional Mouthparts of Adult Vespidae

Mauss, Volker; Kuba, Kenneth; Krenn, Harald W.

doi:10.1007/978-3-030-29654-4_14

Cited by 10 publications

(12 citation statements)

References 60 publications

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“…Like bees, pollen wasps gather pollen in two ways, nibbling directly with the mouthparts and by drawing the foreleg through the mouthparts. Nibbling pollen directly with the mouthparts is present in many pollen wasps (Mauss et al 2019) and likely represents the ancestral form. This type of pollen gathering is most well-documented in Pseudomasaris edwardsii (Torchio 1970, Neff and Hook 2007), Quartinia tenerifinia (Mauss and Mauss 2016), and Ceramius hispanicus (Krenn et al 2002).…”

Section: Resultsmentioning

confidence: 99%

“…As in bees, nibbling directly with the mouthparts appears to be relatively rare and drawing the forelegs through the mouthparts to consume pollen is the more common form. Indeed, a pollen-comb on the galea has been found in pollen wasps, where it is presumably used to remove pollen from the forelegs as they are drawn through the mouthparts (Krenn et al 2002, Mauss et al 2019). Multiple species of pollen wasp have been documented to gather pollen through a combination of nibbling with the mandibles and drawing the forelegs through the mouthparts.…”

Section: Resultsmentioning

confidence: 99%

“…Similar to what I have hypothesized for bees, internal transport in pollen wasps is thought to have evolved from ancestral pollen feeding behavior, in this case in stem-group vespid wasps that consumed pollen as adults but provisioned their larvae with prey (Mauss 2007). The antiquity of pollen-feeding behavior in adults is further supported by the ubiquity of this behavior in the present day, where adult pollen wasps of both sexes consume pollen for their own nutritional needs (Mauss et al 2005(Mauss et al , 2019. This is most well-documented in males, of which multiple species have been observed collecting pollen and dissections have found pollen in their crop (Mauss and Müller 2000, 2016, Mauss et al 2003, 2005, Groddeck et al 2004.…”

Section: Parallel Evolution In Pollen Waspsmentioning

confidence: 87%

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The origin and evolution of pollen transport in bees (Hymenoptera: Anthophila)

Portman

2021

Preprint

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The ability to transport pollen from flowers back to the nest represents a key innovation in the evolution of bees from predatory wasp ancestors. Currently, the origin and evolution of pollen transport remains unsettled. Older hypotheses proposed that crop transport was the original mode of pollen transport, but more recent molecular phylogenies have cast doubt on that view. Instead, more recent hypotheses contend that external transport of dry pollen is ancestral in bees. Here, I propose a new hypothesis to explain the origin and subsequent evolution of pollen transport in bees. I propose that pollen transport arose from adult pollen-feeding behavior and that internal transport of pollen is ancestral in bees. This then led to the evolution of external moist transport, which first required a transition step whereby pollen is temporarily accumulated on the venter on a patch of specialized hairs. Finally, external glazed and dry transport evolved from external moist pollen transport, and the evolution of dry transport led to changes in the location of scopae from the original location on the hind tibia and basitarsus. I illustrate many of these hypothetical evolutionary steps using modern-day bee behavior as an example, with a particular focus on the bee Perdita tortifoliae. Examination of the evolution of pollen transport of pollen wasps (subfamily Masarinae) reveals that they have undergone a parallel evolutionary change. Overall, I lay out a broad hypothetical framework to explain the origin and subsequent evolution of pollen transport in bees. This marks a return to the earlier hypothesis that crop transport is ancestral, and it also represents the first in-depth hypothesis to explain how external transport of moistened pollen could have evolved. The evolutionary history of bees has many implications for the biology of bees in the present day, and I lay out a number of predictions that could help confirm or refute my hypotheses.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Parallel Evolution In Pollen Waspsmentioning

confidence: 87%

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The origin and evolution of pollen transport in bees (Hymenoptera: Anthophila)

Portman

2021

Preprint

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“…Their mouthparts evolved various specializations for fluid uptake and often form a proboscis for the extraction of floral nectar in flower-visiting taxa [1,2]. Many Hymenoptera evolved a more or less elongated labio-maxillary complex that functions either as a licking organ or a siphoning proboscis [1,3,4]. Biting-chewing mandibles combined with licking mouthparts occur in all eusocial Vespidae that are used for diverse foraging activities (e.g., hunting and scavenging of animals) as well as for liquid uptake [3,[5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Filtration of Nutritional Fluids in the German Wasp Vespula germanica (Vespidae, Hymenoptera)

Kuba

Krenn

2022

Insects

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The mouthparts of Vespidae have evolved to forage various solid and liquid foods, such as animal prey, carbohydrate-rich fluids, as well as woody fibres for nest construction. Before nutritional fluids are ingested into the crop, bigger particles need to be filtered out. This study examined the functional morphology of the mouthparts, the preoral cavity, and the proximal alimentary tract inside the head focusing on this filtration process. The feeding organs and preoral cavity were studied using µCT and SEM that were complimented by feeding experiments with glass beads in workers of Vespula germanica. To visualize fluid ingestion into the head and alimentary tract, barium sulfate solution was used as contrast agent; a method that is rarely applied in entomology. Experimental results indicate that large glass beads (>212 µm) were filtered by the mouthpart structures before entering the preoral cavity. Smaller glass beads (152–212 µm) were found inside the infrabuccal pocket in front of the mouth. Morphological evidence indicates that cuticle structures of the epipharynx, hypopharynx, and cibarium filter this particle size inside the preoral cavity while glass beads < 152 µm reach the crop. A double fluid filtration system is proposed that is formed by (1) bristles of the mouthparts and (2) microtrichia of the preoral cavity.

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“…That was, however, a single observation which needs further confirmation. Adult wasps have an extremely elongated proboscis composed of glossa, galeae, and paraglossae (Mauss et al, 2019). They visit flowers of various plants but predominately in the family Asteraceae on which they stand on the capitula taking up nectar with their extended proboscis (Gess & Gess, 2014;Mauss et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

A new species of the genus Raphiglossa S.S. Saunders, 1850 (Hymenoptera: Vespidae: Eumeninae sensu lato) from Turkmenistan

Fateryga¹

2021

Far East. entomol.

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Raphiglossa rasnitsyni Fateryga, sp. n. is described from Turkmenistan. The new species resembles R. eumenoides S.S. Saunders, 1850 in its body size and proportions of the metasomal tergum 1 but strongly differs from it by having a narrow propodeal concavity which is less wide than the metasomal tergum 1 at base, anterior margin of clypeus deeply emarginated and with a single tooth at center in the female, and male genitalia with reduced parameral spine (gonostylus), digitus lacking posterior process, and robust aedeagus broadened (in lateral view) towards the apex and curved dorsally.

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Evolution of the Multifunctional Mouthparts of Adult Vespidae

Cited by 10 publications

References 60 publications

The origin and evolution of pollen transport in bees (Hymenoptera: Anthophila)

The origin and evolution of pollen transport in bees (Hymenoptera: Anthophila)

Filtration of Nutritional Fluids in the German Wasp Vespula germanica (Vespidae, Hymenoptera)

A new species of the genus Raphiglossa S.S. Saunders, 1850 (Hymenoptera: Vespidae: Eumeninae sensu lato) from Turkmenistan

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