Notes for drawing (and writing) insects

I do something like this almost yearly and it feels like it gets a little longer every time!

Personally I draw either cartoony stuff or hybrid monsters where none of this is mandatory, but here are some of the things I sometimes see missing or inaccurate in insect artwork that was meant to be lifelike, and even if you only do alien, monster or cartoon arthropods, or you don’t make art at all, you might still like to know some of these things!



First off, an insect leg pretty much always has 9 segments. #1, the coxa, is what attaches it to the body and can be a short little “ball” or a whole long piece, but almost always bends DOWN.



The last five segments are almost always very short, forming a super flexible “foot” or “tarsus” ending in a set of claws and sticky pads. All spiders have this “foot” as well!

The foot is even still present on the claws of a preying mantis - growing right out of the “sickle” like this, and still used as feet when the mantis walks around or climbs.



Basically ONLY CRABS have limbs ending in simple points!

Insects don’t just have side-to-side mandibles at all, but an upper and lower set of “lips” like a duck bill! In some, however, these parts can be very small or even fused solid.

Insects also typically have four “palps” on their head, an upper and lower pair, which evolved from legs and are used to handle food!



Most insects have ocelli, single-lens eyes in addition to their multi-faceted compound eyes.





A BUNCH MORE UNDER CUT:

All legs and wings are always attached to the thorax!





Caterpillars still have six legs! They’re very small and up near the head. All the other “legs” are actually just suckers on its underbelly.

You will be forgiven for never drawing this but this is how many parts a mosquito’s mouth actually has. Every piece you can find in another insect’s mouth - the “upper lip,” the mandibles, the palps, etc. - are all present as different needles and blades!

The word “bug” originally referred only to one group of insects, the hemiptera, including stink bugs, assassin bugs, aphids, cicadas, bed bugs and water striders to name a few. One distinguishing feature of this group is that it did away with all those separate mouth parts - all “bugs” have just a single, hollow “beak” or “proboscis” to feed through!

The vast majority of insect groups have wings or at least members with wings, and all insects with wings have FOUR of them…..except that in beetles, the front wings evolved into solid, protective shields for the hind wings, and in true flies (which includes mosquitoes!) the hind wings evolved into tiny little knobs with weights on the end, which help to gauge the animal’s speed and position in the air.



OTHER NOTES THAT DON’T NEED ILLUSTRATION:

Insects and other arthropods HAVE TRUE BRAINS in their heads, made of brain cells like ours. They can learn, memorize, and make decisions.

Insects do have males and females and obviously only females lay eggs. Fiction gets this especially wrong, but also even does so with birds for some reason.

Of insects, only termites, ants, some bees and some wasps really have “queens” with that whole organized colony structure.

The scrabbling, clicking noise associated with insects is usually added artificially in nature footage for dramatic effect.

Compound eyes DO NOT see a bunch of identical little images. There is no advantage to any organism seeing that way. An insect sees one big picture just like you do.

Only some insect groups have “larvae.” Others have “nymphs” which resemble fully grown but wingless insects.

The only insects with a venomous bite are some true bugs and some flies. There are no beetles or roaches or wasps or anything else that inject offensive toxins through their mouth parts.

The only insects that lay eggs inside other insects parasitically are certain wasps and flies.

Only certain bees, wasps and ants have stingers on their abdomens. These are modified from egg laying appendages, so it’s also only ever the females.