The head contains two eyes, mouthparts, and two flexible antennae that vary in length and type, depending on the species. Antennae may be threadlike, clubbed, comb-like, toothed, angled, or resemble a string of beads. Head of a cockchafer beetle (genus Melolontha), commonly called a May ...
Beetles Have Been Around for About 270 Million Years The first beetle-like organisms in thefossil recorddate back to thePermian Period, roughly 270 million years ago. True beetles — those that resemble our modern-day beetles — first appeared about 230 million years ago. Beetles were already i...
We also found that the traditional synapomorphy of the tribe, that is, female colleterial glands, closely resemble structures used in symbiotic relationships in other beetles. We used the results of our phylogenetic inferences to estimate divergence times of the tribe and major clades of Coc...
Stag beetle, (family Lucanidae), any of some 900 species of beetles (insect order Coleoptera) in which the mandibles (jaws) are greatly developed in the male and resemble the antlers of a stag. In many species the elaborately branched and toothed mandibl