Radius

The radius is an important vein within the fore wings of insects. The radius may divide into up to five different branches. The position and number of the branches allow entomologists to differentiate between otherwise superficially similar species of insect.

An illustration of the general structure of an insect wing.

Related terms

• Frenulum
• Jugum
• Quadrilateral

Related groups of terms

• Invertebrate body structure

Related pages on this web site

• Insect body structure
• Insect wings

See other words beginning with R