View allAll Photos Tagged vespid
Frelon européen (Vespa crabro), Neuchâtel, Suisse.
Le frelon européen est un insecte de la famille des Vespidés. Il est trois fois plus grand qu’une guêpe. Cet insecte est carnivore. Il se nourrit essentiellement de mouches, un avantage pour l’environnement. Il peut également s’en prendre à d’autres insectes, comme les papillons, les guêpes, les chenilles, les sauterelles, les criquets, et plus rarement aux abeilles. Grâce à ses fortes mandibules, il est capable de décapiter sa proie avant de la dévorer. Avec les humains le frelon européen est quasi pacifique, alors que l’asiatique est très agressif.
Mon pommier étant le seul fruitier de la région sans traitement insecticide , je n'ai récolté que quelques photos , mais aucun remerciement des vespidés
Le Frelon européen ou frelon
(Vespa crabro)
est une espèce d'hyménoptères eusociaux de la famille des Vespidés ressemblant à une guêpe commune mais de taille deux fois plus importante ; il s'agit de la plus grosse des espèces de guêpes européennes,
par la chaleur et la sécheresse elle n'étaient pas très présentes cet été 2022.. mais je me suis fait attaqué par un petit groupe~5 à ,6 un soir lorsque j'arrosais à un endroit où je les avais déjà vu venir boire, je ne suis pas parti assez vite et il avaient très soif, deux à trois sont venus sur la main qui tenait le jet d'eau, j'ai juste pu les esquiver en me retournant et en les arrosant de face, ils ont fini par partir mais moi aussi, une m'avait mordu au niveau du bracelet de la montre.. mais heureusement que mordu... j'ai légèrement eu mal, un peu enflé n'ai pas trop touché, le soir c'était pratiquement calmé et le lendemain matin je n'avais plus rien, heureusement qu'elles ne m'ont pas attaqué vraiment,
ni surtout piqué... les autres jours ils revenaient régulièrement à la même heure et au même endroit, j'attendais qu'ils aient bu sans les déranger et j'arrosai un peu plus loin.. ils avaient compris ..mais moi aussi...! la peur de ma vie.. ils auraient pu me tuer..!
Le frelon européen ou frelon est une espèce d'hyménoptères eusociaux de la famille des Vespidés ressemblant à une guêpe commune mais de taille deux fois plus importante ; il s'agit de la plus grosse des espèces de guêpes européennes.
The European hornet or hornet is a species of eusocial hymenoptera of the family Vespidae resembling a common wasp but of twice the size; it is the largest of the European wasp species.
Merci pour vos visites et commentaires.
Another new species for my prairie bee and wasp species set. The ID was courtesy of iNaturalist so if I've messed up the ID this time, at least I have somebody else to blame. Really though, it is quite incredible how good they are at identifying insects from a single photo.
L. affinis is a yellow and black wasp about 9-10mm in length. These wasps are recognizable by the large ovipositor curled over their back, their longitudinally folded wings, and by their swollen hind legs. They are easily mistaken for larger wasps, and this is intentional on their part. They are mimics of vespid wasps, such as yellow jackets. They even fold their wings in half to mimic the yellow jacket's distinctively thin wings!
As adults, L. affinis feed on nectar from flowering plants such as fleabane or wild celery, but as larvae, they are carnivorous. Female L. affinis lay their eggs inside the nests of mason bees, where their larvae will grow by consuming the mason bee larvae. This is known as parasitism, as the larvae eat and eventually kill their hosts. Larvae overwinter inside of the mason bee nest, and emerge as adults in late June. Females will then seek out another mason bee nest to lay their eggs in.
Source and more info: insectsofcornellgrele.weebly.com/
Réalisé le 03 août 2021 à Leclercville, comté de Lotbinière, Québec.
Cliquez sur la photo pour l'agrandir / click on the photograph to enlarge it.
Taken on August, 3rd / 2021 in Leclercville, Lotbiniere county, Quebec.
Ophrys
Da Wikipedia, l'enciclopedia libera.
Ophrys è un genere di piante erbacee appartenente alla famiglia delle Orchidacee. Comprende più di un centinaio di specie di orchidee terricole, a distribuzione euro-mediterranea. L'area del genere si estende dalle isole Canarie al mar Caspio e dalla Scandinavia al Nord Africa, con la più alta concentrazione di specie nel bacino del Mediterraneo Ogni specie richiede un habitat diverso dalle altre: alcune preferiscono terreno calcareo, altre crescono nel tufo, però tutte quante vogliono posizioni molto luminose e terreno ben drenato in modo da evitare il marciume dei tuberi nel periodo invernale.Il meccanismo di richiamo degli insetti pronubi messo in atto dalle Ofridi è il risultato di una coevoluzione tra questi fiori, privi di nettare, ed alcune specie di imenotteri (prevalentemente apidi, sfecidi e vespidi). In virtù di tale meccanismo selettivo ogni specie di Ophrys ha un suo specifico insetto impollinatore.
Gli insetti sono attratti sul fiore da un richiamo di tipo sessuale: ogni specie infatti, ha il labello conformato in modo tale da simulare l'addome della femmina di uno specifico insetto, e a ciò si associa la produzione di sostanze volatili simili ai ferormoni prodotti dalla femmina in fase di accoppiamento. Il maschio, così richiamato, nel tentativo di "accoppiarsi" con il fiore (pseudocopula), si carica di polline che successivamente depositerà su un altro fiore.
Alcune specie (p.es Ophrys apifera) possono ricorrere all'autoimpollinazione: subito dopo la fioritura le caudicole dei pollinii si curvano in avanti favorendo la deposizione del polline sullo stigma sottostante.
Polistes dominula és una espècie d'himenòpter apòcrit de la família dels vèspids (Vespidae), subfamília dels polistins (Polistinae), molt semblant a Polistes gallicus amb la què comparteix àrea de distribució a Europa.[1] És una vespa d'agressivitat mitjana o baixa, considerada com a plaga a diversos països, i amb impacte negatiu cap a les activitats agropecuàries, particularment la fruticultura. És nativa d'Europa i del nord d'Àfrica però ha estat introduïda accidentalment als Estats Units i a les serralades de l'Argentina i Xile, on està ben establerta.
Característiques
P. dominula posseeix un cos color negre amb taques grogues. Pot assolir fins a 2 cm de llarg. Presenta l'abdomen allargat i amb cintura molt estreta. Pot ser confosa amb Polistes gallicus, de la qual es diferencia per les galtes i el clipi grocs, sense taques negres. Vespula germanica, que és una altra vespa similar, és molt més agressiva, té potes més curtes, poca cintura i l'abdomen més engruixat; Polistes dominula, en canvi, té potes llargues que porta penjant en volar i antenes color taronja.
Història natural
Habitualment construeix els seus nius en ràfecs i abrics protegits de la intempèrie en els sostres d'edificacions i construccions humanes, encara que també poden aparèixer en arbres. S'alimenta principalment de fruites madures. Normalment ataca només quan percep agressions cap al seu niu.
Picada
En la part final del seu abdomen posseeix l'agulló amb el qual sol atacar inoculant un verí dolorós, el qual en els éssers humans pot produir picades doloroses, edemes, i fins a casos fatals a causa de xoc anafilàctic. Al no perdre el seu agulló quan pica, una mateixa vespa pot atacar diverses vegades a la seva víctima.
The European paper wasp (Polistes dominula) is one of the most common and well-known species of social wasps in the genus Polistes. Its diet is more diverse than those of most Polistes species—many genera of insects versus mainly caterpillars in other Polistes—giving it superior survivability compared to other wasp species during a shortage of resources.
The dominant females are the principal egg layers, while the subordinate females ("auxiliaries") or workers primarily forage and do not lay eggs. This hierarchy is not permanent, though; when the queen is removed from the nest, the second-most dominant female takes over the role of the previous queen.[1] Dominance in females is determined by the severity of the scatteredness in the coloration of the clypeus (face), whereas dominance in males is shown by the variation of spots of their abdomens.[2] P. dominula is common and cosmopolitan due to their exceptional survival features such as productive colony cycle, short development time, and higher ability to endure predator attacks.[3]
These wasps have a lek-based mating system. Unlike most social insects, 35% of P. dominula wasps in a colony are unrelated. It is considered an invasive species in Canada and the United States.
Taxonomy
The European paper wasp was originally described in 1791 by Johann Ludwig Christ as Vespa dominula. The specific epithet dominula is a noun meaning "little mistress",[4] and following the International Code of Zoological Nomenclature, species epithets which are nouns do not change when a species is placed in a different genus. Authors who were unaware that dominula was a noun have misspelled the species name as "dominulus" for decades. P. dominula is often referred to as the European paper wasp because of its native distribution and its nests, which are constructed from paper and saliva. It is also frequently referred to in older literature as Polistes gallicus, a separate species with which it was often confused.[5]
Description and identification
Close-up of the head
Little variation occurs among individuals of P. dominula; the wing lengths of males range from 9.5 to 13.0 millimetres (3⁄8 to 1⁄2 in), while those of females range from 8.5 to 12.0 millimetres (5⁄16 to 1⁄2 in). Its body is colored entirely yellow and black, similar to that of Vespula germanica, one of the most common and defensive wasps in its native range.[6] The female mandible is black and sometimes has a yellow spot. Females have a black subantennal mark that rarely has a pair of small, yellow spots. The female vertex sometimes has a pair of small, yellow spots behind the hind ocelli. Females have yellow, comma-shaped scutal spots.[7]
Variations amongst individuals
Although the wasps do not display much conspicuous variation that enables one to tell them apart with the naked eye, definite features are unique to each individual. For example, the abdominal spots on males of P. dominula vary in sizes, locations, and patterns. They act as sexually selective signals and also are associated with social hierarchy within the colonies. Males with smaller, regular patterns of spots are more aggressive and dominant over those with larger, irregular patterns. Similarly, females' appearance varies between individuals and is associated with their social rank. The larger and the more scattered the clypeus marks on the foundress, the higher the probability that she is dominant over other females.[8]
Distribution
P. dominula in the Netherlands
The native range of P. dominula covers much of southern Europe and North Africa, and temperate parts of Asia as far east as China.[9] It has also been introduced to New Zealand,[10] Australia, South Africa,[11] and North and South America. Since the mid-1980s, the population of P. dominula has expanded to rather cooler regions, especially towards northern Europe. Global warming is speculated to have raised temperatures of certain areas, allowing P. dominula to expand to originally cooler regions.[7]
The first North American occurrence of P. dominula was reported in Massachusetts in the late 1970s,[12] and by 1995, this species had been documented throughout the northeastern USA.[13] However, the species is also likely present in additional states, but has just not yet been reported. Although detailed mechanisms of the species' dispersal are still unknown, some number of individuals, including the foundresses, may have hidden inside transportable items such as shipping crates, trailers, boats, or other human-made structures used during international trading between countries.[7] wikipedia dixit
nikond750 105 mm f5.6 1/320sec iso 100
Paper wasps are vespid wasps that gather fibers from dead wood and plant stems, which they mix with saliva, and use to construct nests made of gray or brown papery material. Some types of paper wasps are also sometimes called umbrella wasps, due to the distinctive design of their nests.[1]
Le frelon européen ou frelon est une espèce d'hyménoptères eusociaux de la famille des Vespidés ressemblant à une guêpe commune mais de taille deux fois plus importante.
Vespids that are thought to incorporate chemicals in the nest stem to repel predators.
Peruvian, Amazon
A wasp nest after the winter wars.
Probably paper wasps, Rondeau Provincial Park, Ontario, Canada, March 24, 2021
Paper wasps are vespid wasps that gather fibers from dead wood and plant stems, which they mix with saliva, and use to construct nests made of gray or brown papery material.
1 - La guêpe réunionnaise est la seule espèce de Vespide sociale sur l'île de La Réunion et connue pour sa coloration jaune vif spécifique , une caractéristique rare parmi les espèces de guêpes . Son système unique de régulation thermique lui permet de prospérer dans des climats chauds .
La guêpe réunionnaise utilise un " papier " unique pour construire le nid , qu'elle créé en mélangeant de la salive avec des fibres récoltées sur du bois mort et des tiges de plantes .
Le cycle de vie de la Guêpe commence par un œuf ovale blanchâtre qui est pondu par la reine , soit individuellement soit en grappes . Avec le temps , l'œuf s'obscurcit et grossit à mesure que la créature à l'intérieur se développe .
Après l'éclosion de la première larve , la fondatrice nourrit les larves avec ses proies prémâchées .
Une fois les larves transformées en nymphes , La reine agrandit le nid et recommence à pondre .
Lorsque la larve est prête à se métamorphoser , la reine ferme l'entrée de son alvéole avec un opercule tissé de filament blanc opaque . Quelques semaines plus tard , une nouvelle guêpe y sortira . Cette guêpe sera stérile et servira d'ouvrière pour construire le nid et nourrir les larves .
Les sujets fertiles eux sortiront à la fin de l'été pour féconder de nouvelles reines .
La guêpe réunionnaise a une aiguille piquante . Mais elle n'est pas agressive et attaque rarement les humains à moins qu'elle ne soit menacée .
Néanmoins , elle doit être approchée avec prudence car , bien que la piqûre soit généralement légère , elle peut provoquer douleur et enflure . Des effets toxiques graves peuvent alors inclure des nausées , des maux de tête et de la fièvre . Des piqûres multiples peuvent aggraver les symptômes .
,,,
Vespula vulgaris is a eusocial vespid that builds its tan paper nest in or on a structure capable of supporting it. A founding queen searches for a hollow tree, wall cavity, rock crevice, or even a mammal-made hole to build a nest. One colony cycle lasts for about 6–11 months and each colony cycle produces around 3000–8000 larvae.
The extraordinary adaptation skills of V. vulgaris enable it to live in a wide range of habitats, from very humid areas to artificial environments such as gardens and human structures. This species, along with other wasp species such as V. germanica, has impacted the ecosystem, especially those in New Zealand and Australia, where they were imported by humans, and frequently cause damage to fruit crops and endanger humans.
Adult workers of V. vulgaris measure about 12–17 mm (0.5–0.7 in) from head to tip of abdomen, and weigh 84.1 ± 19.0 mg, whereas the queen is about 20 mm (0.8 in) long. It has aposematic colors of black and yellow; yellow pronotal bands which are almost parallel to each other and black dots and rings on its abdomen. The queens and workers appear very similar to Vespula germanica, except when they are seen head on, as the V. vulgaris face lacks the three black dots of V. germanica. Instead, each has only one black mark on its clypeus, which is usually anchor or dagger-shaped. This applies to queens and workers only. In addition, identification of this species may be difficult because the black mark on its clypeus can sometimes appear broken, making it again look similar to V. germanica. It is prudent to use multiple identifying characteristics and if in any doubt to consult experts.
Still more difficult to distinguish between species are the males. Almost undetectable with the naked eye, the only confident identification of V. vulgaris males is to seek the distinct aedeagus tip shapes and lateral processes of their genitalia.
Vespula vulgaris is a eusocial vespid that builds its tan paper nest in or on a structure capable of supporting it. A founding queen searches for a hollow tree, wall cavity, rock crevice, or even a mammal-made hole to build a nest. One colony cycle lasts for about 6–11 months and each colony cycle produces around 3000–8000 larvae.
The extraordinary adaptation skills of V. vulgaris enable it to live in a wide range of habitats, from very humid areas to artificial environments such as gardens and human structures. This species, along with other wasp species such as V. germanica, has impacted the ecosystem, especially those in New Zealand and Australia, where they were imported by humans, and frequently cause damage to fruit crops and endanger humans.
Adult workers of V. vulgaris measure about 12–17 mm (0.5–0.7 in) from head to tip of abdomen, and weigh 84.1 ± 19.0 mg, whereas the queen is about 20 mm (0.8 in) long. It has aposematic colors of black and yellow; yellow pronotal bands which are almost parallel to each other and black dots and rings on its abdomen. The queens and workers appear very similar to Vespula germanica, except when they are seen head on, as the V. vulgaris face lacks the three black dots of V. germanica. Instead, each has only one black mark on its clypeus, which is usually anchor or dagger-shaped. This applies to queens and workers only. In addition, identification of this species may be difficult because the black mark on its clypeus can sometimes appear broken, making it again look similar to V. germanica. It is prudent to use multiple identifying characteristics and if in any doubt to consult experts.
Still more difficult to distinguish between species are the males. Almost undetectable with the naked eye, the only confident identification of V. vulgaris males is to seek the distinct aedeagus tip shapes and lateral processes of their genitalia.
Réalisé le 16 août 2020 au Marais Léon-Provancher, Neuville, Québec.
Cliquez sur l'image pour l'agrandir / click on the photograph to enlarge it.
Taken on August, 16th / 2020 at Marais Leon-Provancher, Neuville, Quebec.
Scientific name: Nephila pilipes
Diet: Nephila spp. prey upon only a few species. Nephila spp. will remove some specific insects from their webs. They avoid vespid wasps, alate ants, and other insects that secrete distasteful compounds.
Vespula vulgaris, known as the common wasp. 15.08.2018 Helsinki, Finland
My commercial portfolios
A common Yellow Jacket sips a little water from my back yard birdbath. I grow flowers along with my vegetables, both to beautify and to attract insects of all sorts. Although they look menacing, and prey on other insects, generally these vespid wasps are not aggressive toward humans. I work in close with a macro lens and have never been stung. Some years ago I read that most wasp stings occur in the fall when queens leave the nest to mate and start a new colony elsewhere. This leaves the workers without a common purpose: it's every wasp for itself and they become more aggressive than normal, and more likely to sting. (I hope this information is accurate, as I haven't taken the time to google it for verification!)
Yellow Jackets are welcome in my back yard, but this doesn't extend to building their nests from the eaves or any other part of my house. Twenty years ago, on Vancouver Island, some yellow jackets constructed a nest very close to a family of Violet-green Swallows, very high on the house I was renting, too high for me to reach. "Oh, no!" I thought, "Those wasps are going to sting the baby birds to death." Ha! Within a week there wasn't a wasp in sight; the parent birds had caught them all and fed them to their nestlings. Nature tends to take care of itself if we just leave things alone.
Photographed in Val Marie, Saskatchewan. Don't use this image on websites, blogs, or other media without explicit permission © 2016 James R. Page - all rights reserved.
Paper wasps are vespid wasps and typically refers to members of the vespid subfamily Polistinae, though it often colloquially includes members of the subfamilies Vespinae (hornets and yellowjackets) and Stenogastrinae, discussed elsewhere, which also make nests out of paper. Paper wasp nests are characterized by open combs with down pointing cells. Some types of paper wasps are also sometimes called umbrella wasps, due to the distinctive design of their nests.