Mitogenomics
Guides
Cheiracanthiidae
Long-legged Sac Spiders
Cheiracanthiidae is a family of araneomorph spiders established by Wagner in 1887, with priority over the synonym Eutichuridae. The family contains approximately 15 genera and 385 species as of 2026, with Cheiracanthium being the largest and most species-rich genus. Members are commonly known as long-legged sac spiders. The family's phylogenetic placement has been historically contested, having been assigned to Clubionidae, Miturgidae, and Eutichuridae before recognition as a distinct family. Molecular analyses indicate Cheiracanthium is paraphyletic, with divergence estimated at 67 million years ago.
Kiefferulus
Kiefferulus is a genus of non-biting midges in the family Chironomidae, subfamily Chironominae. Species occur in freshwater habitats across Europe, Asia, and Australia. The genus includes taxa formerly treated as a subgenus of Chironomus. Larval development has been documented to take 8–12 days under laboratory conditions in at least one species.
Pedetontus
jumping bristletails
Pedetontus is a genus of jumping bristletails (order Archaeognatha) in the family Machilidae, first described by Silvestri in 1911. The genus contains approximately 10 described species, with additional cryptic diversity identified through molecular studies, particularly in China where 17 species have been documented. Species are wingless and retain numerous ancestral characteristics including monocondylous mandibles and well-developed abdominal appendages. Recent mitogenomic studies indicate that current morphological classification within the genus requires revision due to paraphyly and cryptic species complexes.