The Tenebs

Tenebrionidae, or "Darkling Beetles" are one of the largest insect families, with around 20,000 species in ~2,300 genera. They are usually more diverse in arid habitats (deserts, grasslands, etc.), and where they are found in forests, rainforests, and jungles, is usually in drier habitats (fungi, tree bark, etc.). However, this group is not common in most private collections, and is rarely offered for sale in the U.S., probably due to the typical colors being brown or black.

All that being said. Here's a few highlights from my personal holdings:
Psammodes ponderosus: www.flickr.com/photos/194256110@N07/51915723219/in/album-72177720297803347/
Anomalipus expansicollis crassicauda: www.flickr.com/photos/194256110@N07/51915723199/in/album-72177720297803347/
Lobometopon fusiforme: www.flickr.com/photos/194256110@N07/51972491738/in/album-72177720297803347/
Eleodes suturalis: www.flickr.com/photos/194256110@N07/51972422806/in/album-72177720297803347/
Embaphion muricatum: www.flickr.com/photos/194256110@N07/51972984485/in/album-72177720297803347/
Eusattus convexus: www.flickr.com/photos/194256110@N07/51972420131/in/album-72177720297803347/
Strongylium auratum: www.flickr.com/photos/194256110@N07/51972418466/in/album-72177720297803347/
Mylaris sp. (40mm.): www.flickr.com/photos/194256110@N07/51971415837/in/album-72177720297803347/
Entomochilus tomentosus: www.flickr.com/photos/194256110@N07/51972705494/in/album-72177720297803347/
Praocis rufipes: www.flickr.com/photos/194256110@N07/51972982375/in/album-72177720297803347/
Callyntra unicosta: www.flickr.com/photos/194256110@N07/51971415677/in/album-72177720297803347/
Scotobius muricatus: www.flickr.com/photos/194256110@N07/51971415512/in/album-72177720297803347/
Adesmia sp.: www.flickr.com/photos/194256110@N07/51972705354/in/album-72177720297803347/

Pimelia sp.: www.flickr.com/photos/194256110@N07/51972982310/in/album-72177720297803347/

Feel free to post pictures of your own collections!