Crickets are small to medium-sized insects with cylindrical bodies that are somewhat vertically flattened. They possess spherical heads and are characterized by long antennae and large compound eyes. Depending on the species, their wings can be small or absent and lie flat on the body.

Dobsonflies, typically large, span several continents from North to South America to Australia, Asia, and Africa. Possessing four similarly sized, net-veined wings, which vary from grayish to translucent among species, these insects belong to nine recognized genera.

Found worldwide except Antarctica, termites' species diversity peaks in South America. Misconstrued as "wood ants" or "white ants" in older texts, they are not actually ants.

Lice are tiny, wingless parasites. They divide into two groups: chewing lice, typically infesting birds and mammals, and sucking lice, feeding off mammals exclusively. Their body color ranges from whitish and yellow to brown or black.

Thrips are small hemimetabolic insects with a distinct elongated, cigar-shaped body. Their asymmetrical mouth sets them apart. Surprisingly, the right mandible is minimized and may even be absent in some species.

Earwigs are abundant creatures spread across the Americas and Eurasia. Their elongated bodies squeeze into tight crevices, like those found under bark.

Silverfish, a nocturnal insect known for its fish-like shape, lives mostly in the dark. This insect transforms from a white hatchling to a metallic, grayish adult. Key features include two long cerci, a terminal filament, and, in a few species, small eyes.

Mayflies populate the globe in clean freshwater habitats. The adult insects, characterized by their large compound eyes and short antennae, lack functional mouthparts or digestive tracts and hence do not feed in their winged stages.

The Glowworm beetle is an interesting creature. The females exhibit bioluminescence, resembling their larval stage. They cast light through photic organs on each body segment and sometimes from luminous bands extending across the body. These females are spotted more frequently than the larvae.

Tiger beetles thrive in sandy habitats across many continents, notably the United States. They're nimble creatures, quick to take flight and have a near-perfect vision. Their bright hues adorn their bodies, earning them the label "butterflies of the beetle world."