Cranefly (Lipsothrix nigristigma)

loading
Lipsothrix nigristigma
loading
Loading more images and videos...

Cranefly fact file

Cranefly description

KingdomAnimalia
PhylumArthropoda
ClassInsecta
OrderDiptera
FamilyTipulidae
GenusLipsothrix

Most people have experienced a cranefly or 'daddy long-legs' Tipula oleracea in the house at the end of the summer. Lipsothrix nigristigma resembles this much more familiar cousin, but is considerably smaller, and has a yellowish body.

Size
Body length: less than 1 cm
Top

Cranefly biology

It is known that adult females lay their eggs on to the surface of logs in flowing water. They seem to prefer logs with a diameter of at least 70cm, which are jammed at the edge of the stream, or which form part of a log-jam. The logs must be partially submerged, as the larvae seem to favour the wood along the water line.

Top

Cranefly range

This species is recorded in a number of countries throughout northern Europe, where it is generally associated with mountain regions. It is thought that this species may be the same as a crane fly (Lipsothrix nobilis) found in the alpine regions of Austria, Czechoslovakia, Germany, France and Yugoslavia. In Britain, it has only been found at a small number of sites in recent years near Telford in Shropshire.

Top

Cranefly habitat

This cranefly is associated with woodland streams where the larval stage is spent in wet and rotten fallen logs, especially those in log-jams.

Top

Cranefly status

Classified as Endangered in the UK.

Top

Cranefly threats

With so little known about this insect, it is difficult to be certain about the reasons for its scarcity. An important factor is the need for the cranefly to have access to semi-submerged, rotten wood. If this becomes unavailable through tidying-up operations, then the number of potential breeding opportunities is reduced. It is possible that it may also require sheltered locations.

Top

Cranefly conservation

This species is listed in the UK Biodiversity Action Plans (UK BAP), and is included on English Nature's Species Recovery Programme. Ultimately, more research into the cranefly's ecology will enable more direct species and habitat management to take place, and help to achieve the UK BAP target of ten viable populations by the year 2010.

The UK Biodiversity Action Plan for this species is available at UK BAP.
Top

Authentication

Information supplied by English Nature.

http://www.english-nature.org.uk

Top

Glossary

Larval
Of the stage in an animal's lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
Top

References

X
Close

Image credit

Lipsothrix nigristigma  
Lipsothrix nigristigma

© Roger Key

Dr Roger Key
Tel: +44 (0) 1845 567 292
key_r_s@yahoo.co.uk

X
Close

Link to this photo

ARKive species - Cranefly (Lipsothrix nigristigma) Embed this ARKive thumbnail link ("portlet") by copying and pasting the code below.

Terms of Use - The displayed portlet may be used as a link from your website to ARKive's online content for private, scientific, conservation or educational purposes only. It may NOT be used within Apps.

Read more about

X
Close

MyARKive

MyARKive offers the scrapbook feature to signed-up members, allowing you to organize your favourite ARKive images and videos and share them with friends.

Play the Team WILD game:

Team WILD, an elite squadron of science superheroes, needs your help! Your mission: protect and conserve the planet’s species and habitats from destruction.

Conservation in Action

Which species are on the road to recovery? Find out now »

Help us share the wonders of the natural world. Donate today!

Blog