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Petiole (insect Anatomy)
In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and wasps in the suborder Apocrita. The petiole can consist of either one or two segments, a characteristic that separates major subfamilies of ants. Structure The term 'petiole' is most commonly used to refer to the constricted first (and sometimes second) metasomal (posterior) segment of members of the hymenopteran suborder Apocrita (ants, bees, and wasps). It is sometimes also used to refer to other insects with similar body shapes, where the metasomal base is constricted. The petiole is occasionally called a pedicel, but in entomology, that term is more correctly reserved for the second segment of the antenna; while in arachnology, ' pedicel' is the accepted term to define the constriction between the cephalothorax and abdomen of spiders. The plump portion of the abdomen posterior to the petiole (and postpetiole in the Myrmicinae Myrmicinae is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand Wasp Ammophila Sabulosa On Hemp Agrimony Eupatorium Cannabinum
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is usually defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a soil texture, textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz. Calcium carbonate is the second most common type of sand. One such example of this is aragonite, which has been created over the past 500million years by various forms of life, such as coral and shellfish. It is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years, as in the Caribbean. Somewhat more rarely, sand may be c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrmicinae
Myrmicinae is a subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ... of ants, with about 140 extant genera; their distribution is cosmopolitan. The pupae lack cocoons. Some species retain a functional sting. The petioles of Myrmicinae consist of two nodes. The nests are permanent and in soil, rotting wood, under stones, or in trees.Goulet, H & Huber, JT (eds.) (1993) Hymenoptera of the world: an identification guide to families. Agriculture Canada. p. 224 All species of Cephalotes (within the tribe Attini) are gliding ants. Identification Myrmicine worker ants have a distinct postpetiole, i.e., abdominal segment III is notably smaller than segment IV and set off from it by a well-developed constriction; the pronotum is inflexibly fused to the rest of the meso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paper Wasp
Paper wasps are a type of Eusociality, social vespid wasps. The term is typically used to refer to members of the Vespidae, vespid subfamily Polistinae, though it often colloquially includes members of the subfamilies Vespinae (hornets and yellowjackets) and Stenogastrinae, 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 occasionally referred to as umbrella wasps due to the distinctive design of their nests."Paper Wasp" Microsoft Encarta Online Encyclopedia 2006. Species Approximately 300 species of ''Polistes'' paper wasps have been identified worldwide. The most common paper wasp in Europe is ''Polistes dominula''. The Old World tribe Ropalidiini contains another 300 species ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damsel Flies
Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies (which constitute the other odonatan suborder, Epiprocta) but are usually smaller and have slimmer bodies. Most species fold the wings along the body when at rest, unlike dragonflies which hold the wings flat and away from the body. Damselflies have existed since the Late Jurassic, and are found on every continent except Antarctica. All damselflies are predatory insects: both nymph (biology), nymphs and adults actively hunt and eat other insects. The nymphs are aquatic, with different species living in a variety of freshwater ecosystem, freshwater habitats including acidic bogs, ponds, lakes and rivers. The nymphs moult repeatedly, at the last moult climbing out of the water to undergo metamorphosis. The skin splits down the back, they emerge and inflate their wings and abdomen to gain their adult form. Their presence on a body of water indicates that it is relatively un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crane Flies
A crane fly is any member of the dipteran superfamily Tipuloidea, which contains the living families Cylindrotomidae, Limoniidae, Pediciidae and Tipulidae, as well as several extinct families. "Winter crane flies", members of the family Trichoceridae, are sufficiently different from the typical crane flies of Tipuloidea to be excluded from the superfamily Tipuloidea, and are placed as their sister group within Tipulomorpha. Two other families of flies, the phantom crane flies ( Ptychopteridae) and primitive crane flies ( Tanyderidae), have similar common names due their similar appearance, but they are not closely related to true crane flies. The classification of crane flies has been varied in the past, with some or all of these families treated as subfamilies, but the following classification is currently accepted. Species counts are approximate, and vary over time. ; Infraorder Tipulomorpha : Superfamily Tipuloidea (Typical Crane Flies) :: Family Cylindrotomidae (Cy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect Wing
Insect wings are adult outgrowths of the insect exoskeleton that enable insect flight, insects to fly. They are found on the second and third Thorax (insect anatomy), thoracic segments (the mesothorax and metathorax), and the two pairs are often referred to as the forewings and hindwings, respectively, though a few insects lack hindwings, even rudiments. The wings are strengthened by a number of longitudinal veins, which often have cross-connections that form closed "cells" in the membrane (extreme examples include the Odonata, dragonflies and Neuroptera, lacewings). The patterns resulting from the fusion and cross-connection of the wing veins are often diagnostic for different evolutionary lineages and can be used for identification to the family (biology), family or even genus level in many order (biology), orders of insects. Physically, some insects move their flight muscles directly, others indirectly. In insects with direct flight, the wing muscles directly attach to the win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praeaulacidae
Praeaulacidae is an extinct family of Mesozoic parasitic wasps in the suborder Evanioidea. It among the earliest known families of the group and is characterised by more complete wing venation in comparison to other members of the suborder. It has been found that Othniodellithidae is nested within Praeaulacidae via cladistic analysis. Genera Taxonomy according to Jouault et al, 2020 * †'' Albiogonalys'' Nel et al. 2003 Charentese amber, France, Late Cretaceous (Cenomanian) *†subfamily Cretocleistogastrinae Rasnitsyn 1990 **†'' Cretocleistogaster'' Rasnitsyn 1975 Zaza Formation, Turga Formation, Russia, Early Cretaceous (Aptian) **†'' Miniwestratia'' Rasnitsyn 1990 Dzun-Bain Formation, Mongolia, Aptian **†'' Nanowestratia'' Rasnitsyn 1990, Zaza Formation, Russia, Aptian **†'' Sinowestratia'' Zhang and Zheng 2000 Yixian Formation, China, Aptian **†'' Westratia'' Jell and Duncan 1986 Tsagaantsav Formation, Mongolia, Early Cretaceous (Hauterivian/Barremian) Koon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mymarommatidae
The Mymarommatidae, sometimes referred to as false fairy wasps, are a very small family of microscopic parasitic wasps. Only about half of the known species are living taxa (the others are fossils), but they are found worldwide.Gibson, G.A.P.; Read, J.; Huber, J.T. (2007Diversity, classification and higher relationships of Mymarommatoidea (Hymenoptera).'Journal of Hymenoptera Research'' 16: 51–146 Little is known about the biology of these insects, but because of their size, and simple ovipositors, entomologists assumed they were idiobiont parasitoids on the eggs of insects, similar to other extremely small parasitic wasps such as fairyflies. Psocoptera, long suspected as their hosts based on circumstantial evidence, was confirmed to be the hosts of at least some mymarommatids in 2022, after specimens of ''Mymaromma menehune'' were observed emerging from the eggs of a member of the pscopteran family Lepidopsocidae.Honsberger DN, Huber JT, Wright MG (2022) A new ''Mymaromma' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaster (insect Anatomy)
The gaster () is the bulbous posterior portion of the metasoma found in hymenopterans of the suborder Apocrita (bees, wasps and ants). This begins with abdomen, abdominal segment III on most ants, but some make a constricted Petiole (insect anatomy) , postpetiole out of segment III, in which case the gaster begins with abdominal segment IV. The gaster in ants contains what is sometimes called the "social stomach," which is named for the fact that food can be carried within it and then shared with other members of the colony. It also contains the ant's heart as well as the rest of their digestive system. In the ant subfamily Formicinae, the gaster houses an acidiphore which they can use to spray formic acid. Certain ants in the genus ''Cataglyphis'', including ''Cataglyphis bicolor'' and ''Cataglyphis fortis'', have a cubiform petiole that allows them to decrease their inertia (and therefore increase their speed) by raising their gaster into an upright position. The ant speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
