Subcortical-habitat
Guides
Bothrideridae
cocoon-forming beetles, dry bark beetles
Bothrideridae is a family of small to medium-sized beetles in the superfamily Coccinelloidea, commonly known as cocoon-forming beetles or dry bark beetles. Members are characterized by elongated, cylindrical to somewhat flattened bodies and are primarily found under tree bark in woodland habitats. The family has undergone significant taxonomic revision, with former subfamilies Teredinae, Xylariophilinae, and Anommatinae now placed in the separate family Teredidae. Bothrideridae has a worldwide distribution with greatest diversity in the Old World tropics. The family is notable for its ectoparasitoid larvae, which attack other wood-boring insects including cerambycid beetles, wood wasps, and carpenter bees. Several species, particularly in the genus Dastarcus, are important biocontrol agents used commercially to manage forest pests such as the Japanese pine sawyer (Monochamus alternatus), a vector of pine wilt disease.
Brachypsectra
Texas beetle
Brachypsectra is a genus of beetles in the family Brachypsectridae, one of two extant genera in this small elateroid family. Adults are small, light brown beetles with distinctive pectinate antennae in males. The larvae are flattened, ovate predators with branched lateral lobes on thoracic and abdominal segments, historically known as an 'entomological enigma' before their adult form was discovered. The genus occurs in southwestern North America, with larvae found under bark, in leaf litter, and rock crevices.