Tuesday 18 June
Black-veined moth (Siona lineata)
Black-veined moth fact file
- Find out more
- Print factsheet
Black-veined moth description
Adult Black-veined moths are white in colour with black veins that are more obvious on the underside of the wings. Females differ from males in that they have slightly shorter wings and thicker, shorter bodies (3). The caterpillars are grey-brown in colour with darker lines along the back and sides (3).
- Wingspan: 3.8- 4.8 cm (1)
Black-veined moth biology
The adults are on the wing in May and June and are largely crepuscular(5). They rest in long grasses during the day from which they are easily disturbed, sometimes flying naturally on warm, dull days (6). Caterpillars hatch from the eggs laid by the adults; they are present from July to May and hibernate through the winter, emerging the following spring when they pupate(1). The adults then emerge, starting the cycle again. This type of lifecycle is known as 'single brooded' or 'univoltine', as only one generation (or 'brood') is produced in the year.Top
Black-veined moth range
This species was once known from Kent, Dorset, Sussex, Essex, and Somerset, but now remains in just four sites in Kent (4). It has a wide distribution in Europe and extends as far east as Siberia (4).Top
Black-veined moth habitatTop
Black-veined moth status
Classified as Endangered in Great Britain and fully protected under Schedule 5 of the Wildlife and Countryside Act 1981 (2).Top
Black-veined moth threats
It is thought that the drastic decline of the Black-veined moth is the result of habitat burning, whether accidental or deliberate, over-grazing and lack of suitable management leading to scrub encroachment (4). The reason for the habitat management requirements of Siona lineata, and the probable cause of the contraction of its range, is the species’ requirement for transitional calcareous grassland within a specific stage of succession. The required habitat must exhibit a well-developed sward-mosaic of grass tussocks and herb growth, of sufficient length to offer protection to larvae throughout the winter. In the past, Siona lineata was doubtless able to find alternative suitable breeding habitat when an existing site became overgrown, cultivated or otherwise unsuitable. This is no longer the case, and the maintenance of suitable habitat at existing colony sites must remain the priority (5).Top
Black-veined moth conservation
The Species Action Plan produced as part of the UK Biodiversity Action Plan aims to maintain all current populations and restore a further ten populations in the historic range before 2010 (4). Since 1995, an English Nature Species Recovery Programme has worked towards meeting these aims (4).Top
Information authenticated by Sean Clancy.Top
- Containing free calcium carbonate, chalky.
- Active at twilight and/or just before sunrise.
- A winter survival strategy characteristic of some mammals in which an animal's metabolic rate slows down and a state of deep sleep is attained. Whilst hibernating, animals survive on stored reserves of fat that they have accumulated in summer. In insects, the correct term for hibernation is 'diapause', a temporary pause in development and growth. Any stage of the lifecycle (eggs, larvae, pupae or adults) may enter diapause, which is typically associated with winter.
- 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.
- The process of forming a pupa, the stage in an insect's development, when huge changes occur that reorganise the larval form into the adult form. In butterflies the pupa is also called a chrysalis.
- Single brooded
- (Also known as 'univoltine'). Insect life cycle that takes 12 months to be complete, and involves a single generation. The egg, larva, pupa or adult over winters as a dormant stage.
- The progressive sequence of changes in vegetation types and animal life within a community that, if allowed to continue, result in the formation of a 'climax community' (the last stage in a succession where the vegetation reaches equilibrium with the environment).
- Skinner, B. (1884) Moths of the British Isles. Penguin Books, Harmondsworth.
- JNCC (December 2001): http://www.jncc.gov.uk/species/protect/animals.htm
- South, R. (1961) Moths of the British Isles. Frederick Warne and Co. Ltd, London.
- UK BAP Species Action Plan (December 2001): http://www.ukbap.org.uk
- CLANCY, S.P. (2002). The Black-veined Moth (Siona lineata Scopoli,1763). Survey 2002. Confidential Report to English Nature. Peterborough.
- Sean Clancy (2003) Pers comm.
MyARKive offers the scrapbook feature to signed-up members, allowing you to organize your favourite ARKive images and videos and share them with friends.
Terms and Conditions of Use of Materials
Copyright in this website and materials contained on this website (Material) belongs to Wildscreen or its licensors.
Visitors to this website (End Users) are entitled to:
- view the contents of, and Material on, the website;
- download and retain copies of the Material on their personal systems in digital form in low resolution for their own personal use;
- teachers, lecturers and students may incorporate the Material in their educational material (including, but not limited to, their lesson plans, presentations, worksheets and projects) in hard copy and digital format for use within a registered educational establishment, provided that the integrity of the Material is maintained and that copyright ownership and authorship is appropriately acknowledged by the End User.
End Users shall not copy or otherwise extract, alter or manipulate Material other than as permitted in these Terms and Conditions of Use of Materials.
Additional use of flagged material
Green flagged material
Certain Material on this website (Licence 4 Material) displays a green flag next to the Material and is available for not-for-profit conservation or educational use. This material may be used by End Users, who are individuals or organisations that are in our opinion not-for-profit, for their not-for-profit conservation or not-for-profit educational purposes. Low resolution, watermarked images may be copied from this website by such End Users for such purposes. If you require high resolution or non-watermarked versions of the Material, please contact Wildscreen with details of your proposed use.
Creative commons material
Certain Material on this website has been licensed to Wildscreen under a Creative Commons Licence. These images are clearly marked with the Creative Commons buttons and may be used by End Users only in the way allowed by the specific Creative Commons Licence under which they have been submitted. Please see http://creativecommons.org for details.
Any other use
Please contact the copyright owners directly (copyright and contact details are shown for each media item) to negotiate terms and conditions for any use of Material other than those expressly permitted above. Please note that many of the contributors to ARKive are commercial operators and may request a fee for such use.
Save as permitted above, no person or organisation is permitted to incorporate any copyright material from this website into any other work or publication in any format (this includes but is not limited to: websites, Apps, CDs, DVDs, intranets, extranets, signage, digital communications or on printed materials for external or other distribution). Use of the Material for promotional, administrative or for-profit purposes is not permitted.