Wasps of the genus Sphex are cosmopolitan predators that sting and paralyze prey insects. Sphex is one of many genera in the old digger wasp family Sphecidae, though most apart from the Sphecinae have now been moved to the family Crabronidae. There are over 130 known Sphex species.
Vespula is a small genus of social wasps, widely distributed in the Northern Hemisphere. Along with members of their sister genus Dolichovespula, they are collectively known by the common name yellowjackets in North America. Vespula species have a shorter oculomalar space and a more pronounced tendency to nest underground than Dolichovespula.
Polistes is a cosmopolitan genus of paper wasps and the only genus in the tribe Polistini. Vernacular names for the genus include umbrella wasps, coined by Walter Ebeling in 1975 to distinguish it from other types of paper wasp, in reference to the form of their nests, and umbrella paper wasps. Polistes is the single largest genus within the family Vespidae, with over 200 recognized species. Their innate preferences for nest-building sites leads them to commonly build nests on human habitation, where they can be very unwelcome; although generally not aggressive, they can be provoked into defending their nests. All species are predatory, and they may consume large numbers of caterpillars, in which respect they are generally considered beneficial.
Dolichovespula is a small genus of social wasps distributed widely throughout the Northern Hemisphere. The yellow and black members of the genus are known by the common name yellowjackets in North America, such as Dolichovespula norwegica, along with members of their sister genus Vespula. In a study on the nesting biology of Dolichovespula, a colony of D. maculata with 771 workers was reported as having the largest recorded population count.
Apoica is a genus of eusocial paper wasp found throughout the Central and South American tropics. These wasps are truly nocturnal, carrying out their foraging activities after the setting of the sun. They prefer to construct their nests, which have an open comb like many paper wasps, under large leaves, or in shrubs. During the day, wasps covering the comb fan their wings to cool the nest, keeping it at a suitable temperature for larval development.
Provespa is a small genus of Vespidae, made up of nocturnal wasps from Southeast Asia, sometimes referred to as "night wasps" or "night hornets", though they are not true hornets. They are the only nocturnal members of the subfamily Vespinae, and also the only vespines where new colonies are formed by swarming. They tend to build their nests from fibrous plant material, making them a uniform greyish brown colour which is often difficult to locate.
Monobia is a primarily neotropical genus of medium-sized to large potter wasps occurring from the United States to Argentina. This genus is very closely related to the genus Montezumia. It contains the following species:
Polistes humilis, known as the Australian paper wasp, is a species of wasp in the family Vespidae that is found throughout Australia and which has been introduced to northern New Zealand. These paper wasps can be identified by their long thin legs and banded yellow and black coloring. They have been known to re-utilize old nests. While the species does not exhibit morphological class differences, there are distinct behavioral differences between queens and workers. In addition, the species is eusocial and benefits from relatedness between individuals. They are known for delivering a painful sting, especially when their nest is disturbed, a behavior that has been developed as a nest defense mechanism. While wasps are often viewed negatively, they play an important pollination role for many plants.
Ropalidia is a large genus of eusocial paper wasps (Polistinae) in the tribe Ropalidiini distributed throughout the Afrotropical, Indomalayan and Australasian biogeographical regions. The genus Ropalidia is unique because it contains both independent and swarm-founding species. Ropalidia romandi is one of the swarm founding species, meaning that new nests are founded by a large group of workers with a smaller number of inseminated females, while Ropalidia revolutionalis is independent-founding, meaning that each nest is founded by a single foundress.
Polybia is a genus of eusocial wasps ranging from Central to South America. Some produce enough honey to be collected and eaten by local people.
Chrysis is a very large genus of cuckoo wasps. It is the largest genus in the family, including over 1,000 species in over 20 subgenera, as speciose as all remaining Chrysididae combined. The generic name is derived from Greek chrysis, "gold vessel, gold-embroidered dress", and pays tribute to the brilliant metallic appearance of wasps in the genus.
Polistes carnifex, commonly known as the executioner wasp, is a neotropical vespid wasp in the cosmopolitan genus Polistes.
Polistes instabilis, or unstable paper wasp is a type of paper wasp, is a neotropical, eusocial wasp that can be found in tropical and subtropical areas such as Central America and South America. It can be easily identified with its characteristic yellow, brown, and reddish markings, and it builds nests made from chewing plant fibers and making them into paper.
Polistes pacificus is a Neotropical species of social paper wasp belonging to the subfamily Polistinae and the family Vespidae. P. pacificus can be found distributed throughout most of Central and South America and parts of southern North America. First discovered by Johan Christian Fabricius in 1804, P. pacificus is much darker in color than some other more recognizable Polistes wasps, and is one of the insects commonly eaten by several indigenous groups in Venezuela and Colombia.
Polistes apachus is a social wasp native to western North America. It is known in English by the common name Texas paper wasp, or southwestern Texas paper wasp. It has also been called the Apache wasp, perhaps first by Simmons et al. in California in 1948. Simmons et al. reported how in California P. apachus is often found in fig orchards where it is considered a pest species due to its aggressive attacks and painful stings on farm labourers during harvest time in September and October. It may sometimes also be found in other types of orchards or in vineyards, but in California it is also commonly found to establish nests in or on houses in urban areas in attics or under the eaves of buildings. It is a type of paper wasp, which is the common name for a type of wasp that uses a papery material to construct its nests.
Mischocyttarus flavitarsis is a social paper wasp found in western North America. Their nests can be found both in forests close to rivers or in close proximity to human life under the eaves of roofs. Despite the fact that M. flavitarsis nests are frequently in close contact with humans, M. flavitarsis typically will not sting, but rather ram into the threatening individual. Their colony cycle typically begins before May and will last until October. The queen will then seek a hibernation site for the winter. Perched near female hibernation sites are males with whom the female will mate. The males have claimed their territory by rubbing sternal brushes along the border of the site, leaving a chemical that deters other individuals from approaching. M. flavitarsis feed on arthropods, nectar, and animal carcasses and are often prey to birds, ants, and praying mantis.
Mischocyttarus mexicanus is a New World species of paper wasp that exhibits facultative eusocial behavior and includes at least two subspecies living in the southern United States and Central America. This social wasp species is a good model for studying the selective advantage of different nesting tactics within a single species. M. mexicanus females can form nests both as individuals and as members of a colony, and are even known to switch between these two nesting strategies throughout their life, which is an unusual phenomenon in the field of social biology. Individuals in a colony have particular social roles that are plastic, as opposed to rigid castes, and brood parasitism and usurpation have been observed between unrelated conspecifics. They nest in a variety of types of plants and human constructions, although they have most frequently been observed in palm trees, and they are known to interact with a number of other species as prey, competitors over resources, or foragers.
Parachartergus is a genus of epiponine social wasps belonging to the subfamily Polistinae. Species include:
Polistes comanchus is a species of paper wasp from northwestern Mexico to the south central United States.
Polistes tepidus is a species of wasp in the family Vespidae. It was described by Johan Christian Fabricius in 1775. The species is endemic to parts of Oceania, primarily Indonesia, Papua New Guinea, Australia, and the Solomon Islands. Workers feed upon caterpillars to cache food for their nest. Nests are usually located in trees or other foliage but can also be found within human structures.
