| Optioservus | |
|---|---|
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| Adult Optioservus | |
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| Optioservus larva | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Elmidae |
| Subfamily: | Elminae |
| Tribe: | Elmini |
| Genus: | Optioservus Sanderson, 1954 |
Optioservus is a genus of riffle beetles in the family Elmidae. There are about 13 described species in Optioservus. [1] [2] [3]
Narpus concolor is a species in the family Elmidae, in the order Coleoptera ("beetles"). It is found in North America.
Optioservus browni is a species in the family Elmidae, in the suborder Polyphaga. The species is known generally as the "Brown's optioservus riffle beetle". It is found in North America.
Haeterius is a genus of clown beetles in the family Histeridae. There are at least 20 described species in Haeterius.
Narpus is a genus of riffle beetles in the family Elmidae. There are at least 3 described species in Narpus.
Anogdus is a genus of round fungus beetles in the family Leiodidae. There are at least 16 described species in Anogdus.
Asclera is a genus of false blister beetles in the family Oedemeridae. There are about six described species in Asclera.
Cafius is a genus of relatively large rove beetles in the family Staphylinidae. There are about 8 described species in Cafius found in North America, and approaching 50 globally.
Magdalis is a genus of wedge-shaped bark weevils in the family Curculionidae. There are at least 20 described species in Magdalis.
Cephaloon is a genus of false longhorn beetles in the family Stenotrachelidae. There are about 6 described species in Cephaloon.
Plateumaris is a genus of aquatic leaf beetles in the family Chrysomelidae. There are about 17 described species in Plateumaris.
Distremocephalus is a genus of glowworm beetles in the family Phengodidae. There are about 11 described species in Distremocephalus.
Mycterus is a genus of palm and flower beetles in the family Mycteridae. There are about seven described species in Mycterus.
Ophryastes is a genus of broad-nosed weevils in the family Curculionidae. There are at least 30 described species in Ophryastes.
Macrelmis is a genus of riffle beetles in the family Elmidae. There are at least three described species in Macrelmis.
Barinus is a genus of flower weevils in the family Curculionidae. There are about 14 described species in Barinus.
Himatium is a genus of snout and bark beetles in the family Curculionidae. There are at least two described species in the genus Himatium.
Microphotus is a genus of fireflies in the family Lampyridae. Microphotus are usually found in the southwestern region of the United States of America and adjoining parts of Mexico. There are seven described species in Microphotus in the United States and three more in Mexico.
Dubiraphia is a genus of riffle beetles in the family Elmidae. There are about 11 described species in Dubiraphia.
Pytho is a genus of dead log beetles in the family Pythidae. There are about nine described species in Pytho.
Promoresia is a genus of riffle beetles in the family Elmidae. There are at least two described species in Promoresia.
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