Coreoidea
Guides
Alydidae
broad-headed bugs, broad headed bugs
Alydidae, commonly known as broad-headed bugs, is a family of true bugs in the order Hemiptera containing at least 60 genera and approximately 300 species worldwide. Members are characterized by their notably broad heads, often similar in length and width to the pronotum and scutellum, and elongated, curved terminal antennal segments. The family is closely related to Coreidae (leaf-footed bugs) and shares many morphological features, though Alydidae generally lack the flattened hind tibiae typical of many coreids. Most species are tropical or subtropical in distribution, with relatively few species occurring in temperate regions. Several species are economically significant agricultural pests, particularly in Asia where they damage rice and legume crops.
Alydinae
broad-headed bugs
Alydinae is a subfamily of true bugs comprising approximately 24 genera and over 140 described species. Members are commonly known as broad-headed bugs due to their distinctive head shape. The subfamily was established by Amyot & Serville in 1843 and is classified within the family Alydidae, superfamily Coreoidea. Alydinae represents one of the primary lineages within the broad-headed bug family.
Cydamus abditus
Cydamus abditus is a species of broad-headed bug in the family Alydidae, described by Van Duzee in 1925. It belongs to the subfamily Micrelytrinae and tribe Micrelytrini. The species is known from Arizona in the southwestern United States, with limited published information available regarding its biology and ecology. As with other members of the genus Cydamus, it is likely associated with herbaceous vegetation in arid and semi-arid habitats.
Niesthreini
Niesthreini is a tribe of scentless plant bugs within the family Rhopalidae, established by Chopra in 1967. The tribe comprises at least two genera—Arhyssus and Niesthrea—with approximately 17 described species. Members of this tribe are true bugs (Hemiptera: Heteroptera) belonging to the superfamily Coreoidea. The tribe is well-represented in citizen science observations, with over 9,600 records documented on iNaturalist.
Rhopalidae
Scentless Plant Bugs
Rhopalidae, commonly known as scentless plant bugs, is a family of true bugs in the order Hemiptera. The family comprises approximately 30 genera and over 240 species worldwide. Members are distinguished from related coreids by the absence of well-developed scent glands, and from similar lygaeids by the numerous veins in the hemelytral membrane. Most species feed on plants, with some exhibiting host specificity on particular plant families. The family includes several species that aggregate in large numbers and occasionally enter buildings, such as boxelder bugs (Boisea spp.) and red-shouldered bugs (Jadera haematoloma).