Adela caeruleella is a butterfly from the family of the long- Adela caeruleella moths (Adelidae). The scientific name of the species was first validly published in 1863 by Walker.

Cloaked in metallic sheen, green longhorn moth boasts intricately-patterned wings that unfurl in the sunlight, displaying a mesmerizing tapestry of colors. These striking wings are not just for show, as they play a key role in thermoregulation and camouflage in their habitat. Often found fluttering among flora, this species has a fascinating lifecycle that involves a transformation from a leaf-mining larva to a pollen-feeding adult, showcasing a remarkable adaptation to their ecosystem.

Adela trigrapha is a moth of the family Adelidae or fairy longhorn moths. It was described by Zeller in 1876. It is found in western North America, from Vancouver Island to California. The length of the forewings is 5.5–6.2 mm. Adult males have large eyes and long white antenna (three times the forewing length). The forewings are black and usually crossed by three white lines. Females are smaller and have smaller eyes and antennae. They have a bright orange head. The forewings are bright metallic blue and the hindwings are purple. The larvae possibly feed on Leptosiphon androsaceus and Leptosiphon bicolor.

Adela flammeusella is a moth of the family Adelidae or fairy longhorn moths. It was described by Vactor Tousey Chambers in 1876. It is found in the United States from southern Washington south to the foothills and interior valleys of most of cismontane California. The length of the forewings is 5–6 mm. Adults are dark coppery bronze, usually with three to five cream-colored spots in males. Both sexes have metallic purple hindwings. Adults are on wing from late March to early June. The larvae probably feed on various species of Orthocarpus and/or Castilleja.

Adela septentrionella is a moth of the family Adelidae or fairy longhorn moths. It was described by Walsingham in 1880. It is widespread from southern British Columbia and north-western Idaho to the Transverse Range in southern California. The length of the forewings is 4.5–5.7 mm. The forewings are purplish-black with two incomplete thin white bands. The antennae of the males are at least twice as long as the wings. The hindwings are uniformly dark. Adults are on wing from mid April to mid July. The larvae feed on buds of Holodiscus discolor. Full-grown larvae overwinter in cases on the ground. Pupation takes place in late March or April.

Cloaked in a delicate array of scaled wings, the sandy longhorn completes its life cycle beginning as a leaf miner and evolving into a nocturnal adult with a preference for temperate forest habitats. Its elongated, tufted antennae often surpassing the length of its body, serve as a distinctive feature, facilitating navigation through twilight hours in search of mates and sustenance.

The moth has long, pale shining ochreous, faintly darker strigulated forewings and long antennae. The hindwings are pale grey; cilia whitish-ochreous. Head orange, face whitish. The wingspan is 17–21 mm. The moth flies from late April to June. The moth is only active in the late afternoon and dusk. Nematopogon schwarziellus, Nematopogon pilella, and Nematopogon metaxella are similar to this species.

Cauchas rufimitrella is a diurnal lepidopteran from the family Adelidae, the fairy long horn moths. It is found in almost all of Europe, except Portugal, Ukraine and the southern part of the Balkan Peninsula. The wingspan of the moth ranges from 10 to 12 millimeters. The thick erect hairs on the head vertex are black, more or less ferruginous-mixed above. Antennae in male 2, in female 1.5, black, tip whitish. Forewings shining brassy bronze, sometimes partly or wholly coppery or metallic red purple. Hindwings dark purplish fuscous. The flight time is May to June. Caterpillars live on the seeds of Cardamine pratensis and then they pupate over the winter.