Glossary of entomology terms

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This glossary of entomology describes terms used in the formal study of insect species by entomologists.

When present, elytra of the Staphylinidae are markedly abbreviate.

This fly in the genus Scaptomyza has clearly visible rows of para-sagittal acrostichal bristles on its thorax

the alitrunk of aculeate Hymenoptera comprises the three thoracic segments, plus the propodeum, which strictly speaking, is the first segment of the abdomen.

Distinction between clavate and capitate anatomy of insect antennae

Hexapoda

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The subphylum Hexapoda or hexapods comprises the largest clade of arthropods and includes most of the extant arthropod species. It includes the crown group class Insecta, as well as the much smaller class Entognatha, which includes three orders of wingless arthropods that were once considered insects: Collembola (springtails), Protura (coneheads) and Diplura. The insects and springtails are very abundant and are some of the most important pollinators, basal consumers, scavengers/detritivores and micropredators in terrestrial environments.

Hexapoda