Lepidoptera- butterfly

" In each stage they look very different, and two of the stages are largely immobile, resting stages." https://www.google.com/search?q=lepidoptera+interesting+facts&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

"There are around 165,000 species known worldwide." http://www.bumblebee.org/invertebrates/Lepidoptera.htm

Hemiptera- true bug

"The Hemiptera or true bugs are an order of insects comprising some 50,000 to 80,000 species." https://www.google.com/search?q=hemiptera&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

"Mouthparts usually fold under the body like a clasp knife." https://www.google.com/search?q=hemiptera&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

Odonata- dragon fly

"Both dragonflies and damselflies belong to the Odonata, which is a subgroup of insects." http://www.ucmp.berkeley.edu/arthropoda/uniramia/odonatoida.html

"While both dragonflies and damselflies belong to the Odonata and share many common features, then are a number of noticeable differences as well." http://www.ucmp.berkeley.edu/arthropoda/uniramia/odonatoida.html

Coleoptera

"Beetles are a group of insects that form the order Coleoptera, in the superorder Endopterygota." https://www.google.com/search?q=coleoptera&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

"Their front pair of wings is hardened into wing-cases, elytra, distinguishing them from most other insects." https://www.google.com/search?q=coleoptera&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

Hymenoptera

"Hymenoptera is the third-largest order of insects, comprising the sawflies, wasps, bees, and ants." https://en.m.wikipedia.org/wiki/Hymenoptera

"Hymenopterans, the "membrane-winged" insects, include bees, ants, and a large number of other insect taxa collectively referred to as wasps." http://www.ucmp.berkeley.edu/arthropoda/uniramia/hymenoptera.html

Orthoptera

"The Orthoptera order of insects includes the grasshoppers, crickets, cave crickets, Jerusalem crickets, katydids, weta, lubber, Acrida, and locusts." https://en.m.wikipedia.org/wiki/Orthoptera

"More than 27,000 species are distributed worldwide." https://en.m.wikipedia.org/wiki/Orthoptera

Diptera

"Sucking mouthparts, sometimes adapted for piercing e.g. mosquitoes." http://www.ento.csiro.au/education/insects/diptera.html

"Flies have a complete life cycle and will mate while flying." http://www.ento.csiro.au/education/insects/diptera.html