Insects

 "A surprising number of insects survive in Skyrim's climate, many thriving in the lower, southern areas of the province. Dragonflies can be found in a great many places, and while catching them can be a daunting prospect, the reward is well worth the effort. It was beyond the scope of my research to determine whether the orange and blue dragonflies are fully different breeds or merely simple color variations, but through expirementation, I found that the orange dragonfly, when combined with the very hardy barnacles found along the coast, transfer some of their flighty nature, giving the herbalist some very nimble fingers. " - Herbalist's Guide to Skyrim

"Those venturing in Skyrim's deepest underground reaches should be wary of the Chaurus, a giant insect that spits poison and bites with its razor-sharp mandibles." ―The Elder Scrolls V: Skyrim

Insect Species

 * Ancestor Moth (Dawnguard)
 * Bee
 * Blue Butterfly
 * Blue Dartwing (Dragonfly)
 * Chaurus
 * Chaurus Hunter (Dawnguard)
 * Chaurus Reaper
 * Luna Moth
 * Monarch Butterfly
 * Orange Dartwing (Dragonfly)
 * Torchbugs

Insect Jars

 * Bee in a Jar


 * Butterfly in a Jar
 * Dragonfly in a Jar
 * Moth in a Jar
 * Torchbug in a Jar 

Arachnids

 * Frostbite Spider

Related

 * Ancestor Moth Wing (Dawnguard)
 * Beehive Husk
 * Blue Butterfly Wing
 * Butterfly Wing (Monarch)
 * Chaurus Eggs
 * Chaurus Hunter Antennae (Dawnguard)
 * Frostbite Venom
 * Honey
 * Honeycomb
 * Luna Moth Wing
 * Monarch Butterfly
 * Spider Egg
 * Torchbug Thorax