from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the dorsal plate of the prothorax in insects.
from the GNU version of the Collaborative International Dictionary of English
- n. The dorsal plate of the prothorax in insects. See Illust. of coleoptera.
from The Century Dictionary and Cyclopedia
- n. The anterior one of the three divisions of the notum of an insect, preceding the mesonotum; the dorsal or tergal section of the prothorax; the upper part of the first thoracic segment or prothoracic tergum.
- n. See the adjectives.
Sorry, no etymologies found.
The pronotum is the dorsal plate of the prothorax, forming a wide arc over the propectuses and encircling their pleural plates ventrally (
The head is attached to the pronotum by a very slender neck.
The shape of the pronotum (damselflies) and the head (dragonflies) is very important in reproduction, because the male grasps the female around her neck with appendages on the end of his abdomen.
According to Lester & Papp's Common Insects of North America (1972), the 3 ridges on the elytra (wing covers), visible in the picture above, are characteristic of the species, as are the 3 teeth along the edges of the pronotum, visible in the picture below.
This big brown beetle with long antennae and a spiny pronotum was also a recent sidewalk casualty.
Big brown beetle with long antennae and a spiny pronotum
SNAIL'S TALES: Big brown beetle with long antennae and a spiny pronotum skip to main
Dinoderus spp. bearing two slight depressions at the base of the pronotum.
Hypomeron - a: in Coleopteran; the inflexed edge of the pronotum
Humeral angle: in Lepidoptera, that angle of the wings at the base of costa, near the point of attachment to the body: in Coleopteran, the outer anterior angle of elytra: in Orthoptera, the obtusely rounded angle formed by the deflection of the sides of the pronotum from the dorsal.