Monotypic-family
Guides
Bolbomyiidae
Bolbomyiid Snipe Flies
Bolbomyiidae is a small family of snipe flies established by Stuckenberg in 2001, previously treated as part of Rhagionidae. The family contains a single genus, Bolbomyia, with species measuring 2–3.5 mm. These tiny flies are restricted to the north temperate zone of North America and the Russian Far East.
Curalium
Curalium is a genus of true bugs (Hemiptera: Heteroptera) established in 2008 as the sole member of the family Curaliidae. The genus contains a single described species, Curalium cronini, known only from male specimens collected in the southeastern United States. Its distinctive physical and genetic characteristics warranted placement in a new family, representing a rare example of a higher-level taxonomic discovery in the 21st century.
Curalium cronini
Curalium cronini is a true bug (Hemiptera: Heteroptera) described in 2008 and the sole known species of the family Curaliidae. It is endemic to North America. The family was established based on this species, representing a rare example of a monotypic family within the Cimicomorpha. Its discovery expanded the known diversity of cimicomorphan lineages.
Dactylopiidae
Cochineal Insects
Dactylopiidae is a family of scale insects (Hemiptera) comprising the single genus Dactylopius, commonly known as cochineal insects. These insects are economically and historically significant as the primary source of carmine, a vibrant red dye derived from carminic acid that the insects produce as a defensive compound. The family has been used for dye production since at least the 10th century in the Americas and became the second most valuable export from the New World during the Colonial Period. Some species serve as biological control agents for invasive cacti, while others are agricultural pests of cactus crops.
Deuterophlebiidae
Mountain Midges
Deuterophlebiidae is a monotypic family of Diptera containing the single genus Deuterophlebia, considered the most plesiomorphic extant dipteran family based on morphological and molecular evidence. Commonly known as mountain midges, these insects inhabit cold, fast-flowing streams across the Holarctic region. Adults possess striking morphology including extremely long antennae in males, broad fan-shaped wings, and highly reduced mouthparts. Larvae are specialized for life in torrential waters with reversible crocheted pseudopods for attachment to smooth stones. The family exhibits a complex life cycle with extended larval and pupal periods and extremely brief adult longevity lasting only a few hours.
Ooderidae
Ooderidae is a monotypic family of chalcidoid wasps containing the single genus Oodera. These wasps are parasitoids of wood-boring beetles, primarily in the families Buprestidae and Curculionidae. They are rarely collected using standard entomological methods and remain poorly known biologically.
Oreoleptidae
Oreoleptid Flies
Oreoleptidae is a monotypic family of flies established in 2005 based on the single species Oreoleptis torrenticola. The family was discovered in the Rocky Mountains where larvae inhabit torrential streams and groundwater wells. Adults were reared from larvae after decades of larval collections that could not be matched to any known adult stage. The family shows morphological affinities to both Pelecorhynchidae and Athericidae/Tabanidae, with distinctive male genitalia linking it to the latter group.
Oreoleptis torrenticola
Oreoleptis torrenticola is the sole species in the monotypic genus Oreoleptis and family Oreoleptidae, a family of flies established in 2005 based on this single species. The species was described from specimens collected in the Rocky Mountains, where its larvae inhabit torrential streams and have also been found in groundwater wells. This enigmatic dipteran represents a distinct lineage whose larval morphology shows similarities to Athericidae and Tabanidae but possesses distinctive abdominal prolegs.
Podura
Podura is a genus of springtails (Collembola) constituting the sole genus of the family Poduridae and superfamily Poduroidea. The genus contains four described species, including the widespread Podura aquatica and two fossil species from Baltic amber. Members are characterized by their stout body form and are among the more morphologically distinct springtail lineages.
Superstitionia donensis
Superstition Mountains Scorpion
Superstitionia donensis is a small scorpion species endemic to the southwestern United States and northwestern Mexico. It is the sole member of its family Superstitioniidae, distinguished by a unique trichobothrial pattern and reduced number of pectinal teeth. The species inhabits rocky desert terrain and is primarily nocturnal. Its venom is considered mild to humans.