Tipulidae

Large Crane Flies, Crane Flies

is a large of in the , comprising over 4,200 described in more than 30 . Members are commonly known as or large crane flies, characterized by their elongated bodies and exceptionally long, slender legs. are typically short-lived and often do not feed; their primary purpose is . occupy diverse moist including soil, leaf litter, decaying wood, and aquatic environments, where most feed on decaying matter. The family has a fossil record extending to the Late .

Tipula caloptera by (c) Nick Block, some rights reserved (CC BY), uploaded by Nick Block. Used under a CC-BY license.

Nephrotoma suturalis by (c) Arturo Santos, some rights reserved (CC BY), uploaded by Arturo Santos. Used under a CC-BY license.

Nephrotoma virescens by (c) skitterbug, some rights reserved (CC BY), uploaded by skitterbug. Used under a CC-BY license.

Pronunciation

How to pronounce Tipulidae: /tɪˈpjuːlɪdiː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

can be distinguished from other by the structure of the : the fourth (furthest from the body) is longer than the other three segments combined. typically have 13 segments, compared to 14 or 16 in . These features help separate true crane flies from the numerous related families formerly classified as of Tipulidae.

Images

Habitat

occur in moist terrestrial and aquatic environments including soil, leaf litter, moss, decaying wood, , and freshwater . Some have adapted to extreme environments including caves, marine intertidal zones, and deserts, though the majority inhabit humid forests and wetlands. are aerial and found in diverse terrestrial habitats, often near larval development sites.

Distribution

Worldwide distribution across all continents except Antarctica. Particularly diverse in temperate and tropical regions.

Seasonality

timing varies by and latitude. Many temperate species emerge in spring and early summer. Some species are attracted to lights at night.

Diet

are primarily , feeding on microbe-rich decaying material in moist environments. Some are predacious, , or ; a minority feed on living plant roots. generally do not feed, or feed only sparingly on liquids such as dew, water, or nectar; some species have independently evolved long mouthparts for nectar feeding.

Life Cycle

with , , , and stages. Larval development is the , often requiring one or more years. Pupae have a leathery appearance, giving rise to the colloquial name "leatherjackets" for larvae of some . Adults are short-lived, typically surviving only days to weeks, with lifespan sufficient primarily for mating and .

Behavior

form mating swarms, with some exhibiting all-male swarms that attract females. Males of other species with forelegs outstretched, presumably using contact to locate females. Some tropical species aggregate in dark areas, flying together at constant levels and re-aggregating after disturbance. Adults are fragile and easily lose legs when handled. Some species are attracted to artificial lights at night.

Ecological Role

function as in terrestrial and aquatic through , contributing to . They serve as important food sources for various including birds, small mammals, and other . Some are significant pests of turfgrass and agricultural due to root-feeding larval damage.

Human Relevance

are frequently mistaken for giant mosquitoes and colloquially called "mosquito hawks," though they do not on mosquitoes or bite humans. They are harmless to humans and pets. Some are economically important as pests of turfgrass, golf courses, lawns, athletic fields, and agricultural , particularly European in North America. The has been extensively studied by , with Charles Paul Alexander describing over 11,000 species during his career.

Similar Taxa

LimoniidaeFormerly classified as a of ; distinguished by 14-16 antennal versus 13 in Tipulidae, and by structure (fourth segment not longer than other three combined).
PediciidaeFormerly included in ; now recognized as a separate based on phylogenetic evidence, distinguished by hairy and other morphological features.
Culicidae (mosquitoes)Superficially similar appearance with long legs and narrow body, but mosquitoes have scaled , for blood-feeding in females, and shorter with in males.

Misconceptions

are commonly but incorrectly believed to be of mosquitoes or to bite/ humans. They do neither. The name "mosquito hawk" is a misnomer. of most do not feed at all. They are also frequently called "daddy longlegs" in some regions, a name also applied to () and cellar (Pholcidae), causing further confusion.