mesoscutum - Synonyms for mesoscutum | Synonyms Of mesoscutum

Examples of "mesoscutum"
The scutellum is nearly always distinct, but much smaller than (and immediately posterior to) the mesoscutum. The scutellum macrochaetae are important in taxonomy.
"N. electra" is the only species of "Neocorynura" known from fossils and one of only a few extinct Halictidae which are known from the amber record. "N. electra" can be identified from the extinct halictid genus "Oligochlora" by differences in the mesoscutum and carinate pronotal ridge. Although similar to the associated Dominican amber species "Eickwortapis dominicana" the mesoscutum is again different between the two species.
The family is distinguished from the closely related Megaspilidae by having a very small stigma in the wing, a very broad metasomal petiole, and a single median groove in the mesoscutum.
The family is distinguished from the closely related Ceraphronidae by having a very large stigma in the wing, a relatively constricted metasomal petiole, and three grooves in the mesoscutum.
In their research article on phenotypic variability of foundresses, Rusina and Orlova suggest the two groups of "Polistes nimpha" females are phenotypically distinguishable. Generalists are identified with non-infested individuals reared under favorable conditions, while specialists are identified with infested females, reared under conditions of insufficient nutrition. Infested individuals are inferior in size to non-infested females, and they exhibit a lighter pigment on the mesoscutum. There also seems to be a correlation between the worker population and the foundresses’ pigmentation: the more workers there are in a colony, the darker the foundresses mesoscutum is.
"Oligochlora" is most similar to the extant genus "Neocorynura", from which it can be separated by the shapes of the mesoscutum and preoccipital ridge or the monotypic genus "Thectochlora" which also has a mutualistic relationship with specialized acarid mites. The genus also superficially resembles the genus "Corynura" but differs in a number of features including the lack of eye hairs.
The female worker has a typical body length of 4.1-4.5 mm, and an average wing length of 4.4-4.7 mm, including the tegula. The mesopleuron and metapleuron are covered with fine hair. The malar space is also hairy and relatively long, and the mesoscutum does not have distinct glabrous bands.
"A. flavissima" typically have a mesoscutum (the middle thoracic segment of the insect) that is dark yellow with outstanding bristles. The gaster (the enlarged posterior of the abdomen) is pale yellow along with the humeral plate. The posterior ocelli of the species are widely separated from the eyes. In addition, the wing length is typically . Colonies of "A. flavissima" can be identified morphologically by having smaller queens than workers.
The scutellum is the posterior portion of either the mesonotum or the metanotum of an insect thorax; however, it is used almost exclusively in the former context, as the metanotum is rather reduced in most insect groups. In the Hemiptera, and some Coleoptera, the scutellum is a small triangular plate behind the pronotum and between the forewing bases. In Diptera and Hymenoptera the scutellum is nearly always distinct, but much smaller than (and immediately posterior to) the mesoscutum.
Most eumenine species are black or brown, and commonly marked with strikingly contrasting patterns of yellow, white, orange, or red (or combinations thereof), but some species, mostly from tropical regions, show faint to strong blue or green metallic highlights in the background colors. Like most vespids, their wings are folded longitudinally at rest. They are particularly recognized by the following combination of characteristics: 1) a posterolateral projection known as a parategula on both sides of the mesoscutum; 2) tarsal claws cleft; 3) hind coxae with a longitudinal dorsal carina or folding, often developed into a lobe or tooth; and 4) fore wings with three submarginal cells.
The mesoscutum is 1.1 times longer than wide. The median mesoscutal impression is invisible. Scutellar foveae are shallow, forming a transverse depression. The mesopleuron exhibits a longitudinal impression running on its posterior half. The area surrounding this impression almost is completely smooth. The mesopleural triangle is not impressed basally, while being pubescent. The metascutellum is constricted medially. Its nucha dorsally counts with strong, irregular and longitudinal rugae. The animal's forewing is rather longer than its body. An areolet is absent. Its metasoma is as long as its mesosoma. The abdominal petiole is 1.5 times longer than high.
The female antenna is composed of 12 segments, its flagellum broadening towards its apex. The last flagellomere is broader than the penultimate, with a rounded end. The male antenna possesses 15 segments, with a flagellum that does not broaden towards the apex. Its pronotum's dorsal part is distinctly set off; admedian pronotal depressions are widely separated. The lateral surface of the pronotum is coriaceous. The mesoscutum is almost wholly smooth. Some long setae are scattered along the notauli, which are percurrent and well separated posteriorly. Anteroadmedian signa is visible, and the transscutal fissure is narrow. The mesopleuron is located beneath the mesopleural triangle and carries a marked, longitudinal impression.
The mesothorax is the middle of the three segments in the thorax of an insect, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on each side. The mesothorax is the segment that bears the forewings in all winged insects, though sometimes these may be reduced or modified, as in beetles (Coleoptera) or Dermaptera, in which they are sclerotized to form the elytra ("wing covers"), and the Strepsiptera, in which they are reduced to form halteres. All adult insects possess legs on the mesothorax. In some groups of insects, the mesonotum is hypertrophied, such as in Diptera, Hymenoptera, and Lepidoptera), in which the anterior portion of the mesonotum (called the mesoscutum, or simply "scutum") forms most of the dorsal surface of the thorax. In these orders, there is also typically a small sclerite attached to the mesonotum that covers the wing base, called the tegula. In one group of insects, the Hemiptera, the dorsal surface of the thorax is typically formed primarily of the prothorax, but also in part by the enlarged posterior portion of the mesonotum, called the scutellum; in the Coleoptera, the scutellum may or may not be visible, usually as a small triangular plate between the elytral bases, thus similar in position to the Hemipteran scutellum. In Diptera and Hymenoptera the mesothoracic scutellum is also distinct, but much smaller than the mesoscutum.
"Belonogaster juncea juncea" has a gaster that is considerably larger and more bulbous than its petiole, which appears very thin and long. Mesoscutum length is 3.8 mm ± 0.2 mm in dominant individuals and 3.6 mm ± 0.5 mm in subordinate individuals, while petiole length is 6.9 mm ± 0.4 mm in dominant individuals and 6.6 mm ± 0.5 mm in subordinate individuals. It also has somewhat lengthy antennae and typically exhibits a black/dark red color. Along with an increased size, a dominant female in a "B. j. juncea" colony can be identified by abdominal wiggling behavior, as subordinate females and other males or workers do not exhibit this sort of behavior.
"Meringopus calescens" can reach a length of about in females, of about in males. These relatively large Ichneumonid have a black head and a well defined clypeus, with some heavy punctures. Thorax is black and sculptured. Mesoscutum is polished, with irregular punctures. Wings are quite infuscate. Legs show black coxae and trochanters, but the remaining parts are orange. Abdomen has a mostly fuscous 1st segment, 2 and 3 segments are orange, while the apical segments are mostly black. Ovipositor is slightly upcurved and can reach about 5 mm.
Along the lateral and posterior aspects of the mesosoma, the pubescence is short, white, and sparsely distributed. The hairs are more densely collected around the pronotal lobes. There are a paucity of pale, very short hairs on the mesoscutum. The hairs are stiffer, whiter and longer on the scutellum. Punctate markings across the mseoscutum and scutellum are coarse, deep, and closely arranged. The spaces between the mesoscutum and scutellum are shiny and very narrow. Punctate markings are finer on the axilla, where they are closely arranged. The pleura demonstrate punctate markings which are coarse and deep. These are densely arranged anteriorly. The pleura are shiny between the punctate markings. Lateral aspects of the propodeum are dull. They are overall smooth, except some fine and shallow punctures. These are closely arranged. The first tarsal segments are shorter and narrower than the tibiae. Yellow spurs are present on the legs. There are minute and closely spaced punctures on the skeletal plate covering the costal vein of the wing (tegula). The black veined wings are slightly cloudy at the apices and glassier at the bases.
There are short, white pubescent hairs sporadically distributed along the lateral and posterior aspects of the mesosoma. They are more densely arranged along the upper surface of the prothorax. Hairs on the mesoscutum are short and infrequent. The hairs on the scutellum are longer and stiffer. Deep, ragged puncture marks are spaced closely together across the mesoscutum. The spaces between each punctate marking are less that the diameters of the marks. They are less closely associated on the scutellem. At the axilla, the markings are less ragged in appearance and are spaced very close together. The pleural surfaces are shiny, with puncture marks along the lower aspects being deep and ragged. Higher up, these markings are less ragged and less sparsely distributed. The lateral aspects of the propodeum are generally of a smoother texture, although there are crisp and shallow markings closely spaced. The spine along the anterior coxal aspect is nearly obliterated. The coxa are covered in dense white hairs. The anterior tarsus is dark. There are long brown hairs on the fronts of the first three tarsomeres. The more typical fringe of hairs along the posterior aspect is absent. There is a robust mid-tibial spur. The slim middle and posterior tarsi show yellow spurs. There are tiny puncture marks closely spaced together on the tegula. The black veined wings are slightly cloudy at the apices and glassier at the bases.
The antenna is 0.6 times the length of the body, with 12 antennomeres, its flagellum widened towards its apex. Placodeal sensilla are visible only on flagellar segments F7 through F10; pedicel 1.4 times longer than wide. The apical flagellomere is spindle-shaped, 3 times longer than wide. The pronotum is strongly pubescent laterally. The lateral surface of the pronotum is coriaceous, with strong, long rugae running horizontally from the lateral margin of the pronotal plate, reaching the posterior margin of the pronotum. The mesoscutum is as wide as long. Its notauli are percurrent, straight and narrow, converging posteriorly. The mesopleuron counts with a marked longitudinal impression. The mesopleural triangle is rhomboidal and densely pubescent. Its metascutellum is distinctly constricted in its median area. A dorsal nucha is present with strong, irregular longitudinal rugae.
The thorax and heads of male "L. cressonii" are dark olive green and look nearly blue in certain areas. The abdomen is black and the scutellum is slightly grooved in the middle where it is more punctate, but on the sides of the abdomen the punctures are more less dense. Male veins and stigma are also a dull brick-red color. The bottom portion of the legs are glossy brownish black while the upper portion is also a dull brick red. The abdomen is shiny and essentially impunctate. In order to distinguish males, one can look for clypeal hairs that do not obscure the surface and punctures on the anterior portion of the mesoscutum.
Female "L. leucozonium" are recognizable by their rough and relatively short propodeal dorsal areas. The smooth surface of these areas has horizontal stripes which are divided in the middle, which is a unique characteristic of Eastern United States "Lasioglossum" species, a feature shared only with "L. zonulum". Its dull, grainy first metasomal tergum has well-developed punctures separated by 1-1.5 times their width, and its vertex behind the ocelli has stripes. In comparison to "L. zonulum", the pronotal angle of "L. leucozonium" projects out less but is still obtuse. The pronotum has a well-developed dorsal edge and an incomplete lateral ridge, of which the lower part is unnoticeable and broadly rounded, divided by a slanted groove. With a rounded lip on the scutum of their middle thoracic segment raised from the pronotum, it has a propodeal triangle that is well defined by a carinate rim. It has an elongated head, a shiny face, and an evenly rounded, slightly protruding, and extremely grainy supraclypeal area that is uniformly and densely spotted with punctures separated by their width or less. It also has a somewhat granulated and shiny clypeus, protruding below the eyes, with a surface that has a lot of punctures without a groove in the middle. The distance between its lateral ocelli is greater than that between the lateral ocelli and the eye. While the lateral edge of its metasomal tergum II is only slightly wavy, the distal keel of its labrum is somewhat broad in the front and gradually narrows moving back to the tip. Its moderately shiny mesoscutum has a microscopically patterned surface, and its scutellum has nearly uniform punctures like that of the mesoscutum. There is white to yellowish white hair on the head and thorax, though the thorax has some brown hairs on the scutellum. The slightly separated hind tibial hair is mostly pale yellowish brown while the dorsal hairs are light brown. On the metasomal tergum I and terga II-IV, the hair is white with a band of hair on terga II-IV and elongated hairs scattered over the anterior surface of tergum I. Its mesoscutal hairs are moderately dense and seem feathery, and its wing membrane has a glassy, translucent appearance.