Understudied-taxon
Guides
Billbrownia
Billbrownia is a genus of fungus-growing ants in the family Formicidae, subfamily Myrmicinae, and tribe Attini. The genus was established to accommodate species previously classified under other attine genera, particularly those with distinctive morphological features. These ants engage in the cultivation of fungal gardens, a defining characteristic of the Attini tribe. The genus remains relatively understudied compared to more prominent attine genera such as Atta and Acromyrmex.
Cacostola
Cacostola is a genus of longhorn beetles (Cerambycidae) in the subfamily Lamiinae, tribe Onciderini. It was described by Fairmaire & Germain in 1859. Members of this genus are found in South America, with records from Colombia. As part of the Onciderini, species in this genus are likely associated with woody plants, though specific ecological details remain poorly documented.
Erythraxus
Erythraxus is a genus of mites in the family Erythraeidae, established by Southcott in 1961. These mites belong to the order Trombidiformes, a diverse group of arachnids commonly known as "true mites." Members of the family Erythraeidae are typically predatory in their active post-larval stages, though specific details about Erythraxus biology remain poorly documented. The genus is rarely encountered in scientific literature and field observations.
Leptipsius
Leptipsius is a genus of small beetles in the family Monotomidae. The genus was established by Casey in 1916 and currently includes six described species distributed in North America. Species within this genus are poorly studied, with limited biological information available beyond taxonomic descriptions.
Neamblymorpha
Neamblymorpha is a genus of ichneumon wasps described by Heinrich in 1960. It belongs to the family Ichneumonidae, one of the largest families of parasitoid wasps. The genus has been documented in the northeastern United States, with records from Vermont. Like other ichneumonids, members of this genus are presumed to be parasitoids, though specific host associations remain poorly documented.
Pentapria
Pentapria is a genus of minute parasitoid wasps in the family Diapriidae, established by Kieffer in 1905. Members of this genus are part of the diverse Proctotrupomorpha radiation within Hymenoptera. As with other diapriid wasps, species in this genus are likely parasitoids of other insects, though specific biological details remain poorly documented. The genus is rarely encountered in field studies and is represented by few observations in citizen science databases.
Tetrix sierrana
Sierra Pygmy Grasshopper
Tetrix sierrana is a species of pygmy grasshopper in the family Tetrigidae, endemic to California in the western United States. Like other members of the genus Tetrix, it is a minute jumping insect with a highly modified pronotum that extends backward over the abdomen. The species was described in 1956 and remains poorly known, with very few documented observations.