Information om | Engelska ordet PYGIDIAL

Exempel på hur man kan använda PYGIDIAL i en mening

• Harpaline beetles, like other ground beetles, have pygidial glands that are used for defensive secretions, some secretions containing formic acid.
• While the female emits the sex pheromones from pygidial glands, which are located posteriorly on the abdomen, The female turns and moves towards the males' abdominal tergites, where an aphrodisiac sex pheromone made exclusively by males is emitted through secretions.
• In the Hamilton Group of New York, they are found with Eldredgeops, Dipleura and Bellacartwrightia, a trilobite that resembles Greenops but has much larger pygidial spines.
• These trilobites have eleven thoracic segments, a very small pygidium and long genal and pygidial spines.
• Its major characteristics are a large parallel-sided glabella, deep interpleural furrows on the pygidium, and slender pygidial spines, as well as the fact that it is the most common limb-bearing trilobite species in the Burgess Shale.
• The pygidium is also very effaced, but the ovate pygidial axis (or rhachis) is well defined and a border furrow is also present.
• The presence of a pygidial plate bordered by setae on the fifth metasomal tergum supports the placement into the Halictidae subfamily Halictinae.
• Glyptagnostus reticulatus angelini also has poorly developed longitudinal furrows outlining the pygidial axis and a variable degree of reticulation.
• The characteristic lateral expansion of the frontal glabellar lobe, occipital structures, and pygidial axis with three pairs of lateral lobes and a terminal piece differentiate Condylopygidae from all other agnostids.
• Trails laid with the sternal glands, relatively short-lived, serve to recruit nestmates to food patches, while secretions from the pygidial gland release attractants to food at short range (up to 15 cm).
• Males can be distinguished from other Dinoponera by the following combination of character states: funiculus of antennae with short, thick decumbent setae; pygidial spine shorter than in Dinoponera gigantea and Dinoponera quadriceps but longer and narrower than in Dinoponera australis and Dinoponera snellingi, volsella with broad basal lobe covered in minute teeth.
• The main differences are that in Minicryphaeus the genal spines are about 75% of the length of the glabella, the spaces between the lateral pygidial lappets are V-shaped, and the terminal spine is triangular and longer than the other lappets.
• The lateral borders of the free cheeks (or librigenae) of bear indentations that fit the tips of the pleurae of the thorax and the first pair of pygidial pleurae and these could effectively lock the uncalcified underside of the animal during enrollment.
• Losso & Ortega-Hernández (2022) report evidence of the presence of significantly modified and reduced endopodites underneath the seventh thoracic and first pygidial tergites of Olenoides serratus and interpret these appendages as likely functional analogs to claspers.

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