Quadrilateral

The quadrilateral is a cell in the wing of damselflies. The presence of the quadrilateral cell differentiates damselflies from dragonflies. Also, the shape of the cell can be used to distinguish between Families of damselfly.

A close up photograph of a damselfly. The quadrilateral cell is marked with an arrow.
Photograph by Quartl licensed under Creative Commons.

Related terms

• Alary
• Costa
• Discal cell
• Odonata
• Radius
• Vein
• Venation

Related groups of terms

• Invertebrate body structure

Related pages on this web site

• Dragonflies and Damselflies - Order Odonata
• Insect wings

See other words beginning with Q