Key SearchWelcome to the Lucidcentral Key Search

There are two ways you can search for a key in the Lucid key database. First, you can type in a word or words in the “Search” box to the right of the screen and press Go. This search will display all those keys that have the word(s) you entered in the title of the key. The alternative way is to use one or a number of the search categories below, using the drop down menus. So, for instance, you could search for an internet key (under Media/Deployment), of Higher plants (Taxonomic scope), terrestrial (Habitat) and Australia (Geo Scope).

We recommend that you check whether you have the latest (free) version of Java Runtime Environment and if necessary upgrade to the latest version when running keys based on the Lucid Player applet.


Key to the world species of Ips (Coleoptera: Curculionidae: Scolytinae)  --  VISIT
 Views: 131

Updated: Fri 06/28/2019 @ 05:28

About the key

A matrix key designed to allow maximum diagnostic inference from male or female specimens of Ips DeGeer, 1775, including damaged specimens.

Morphologically similar genera of Ipini, Orthotomicus and Pseudips, are included at genus level to help distinguish Ips from these other genera.

Numbers in parentheses in natural language descriptions indicate outlier values observed in only a few specimens.

Key accompanies an article in the Canadian Journal of Arthropod Identification (Douglas et al. in press). This article includes a dichotomous key, and illustrated diagnostic fact sheets for all Ips species and subspecies.

Douglas HB, Cognato AI, Grebennikov, V, Savard K. In Press. Dichotomous and matrix-based keys to the Ips bark beetles of the World (Coleoptera: Curculionidae: Scolytinae). Canadian Journal of Arthropod Identification 38: 234pp. doi:10.3752/cjai.2019.38


Author(s): Douglas HB, Cognato AI, Grebennikov, V, Savard K

A Key to the genera of Australian Jumping Spiders (Araneae: Salticidae)  --  VISIT
 Views: 91

Updated: Thu 06/20/2019 @ 03:35

Identification key:

The key is intended to meet the needs of naturalists, biologists and taxonomists who wish to identify Australian jumping spiders. The character set has high redundancy (99 characters, 293 character states) allowing users to begin with whatever observable characters are available to them when using photographs, a high-powered hand lens or a microscope.

An information sheet attached to each genus provides a list of known species and information on evolutionary relationships, distribution, habits, a simplified diagnosis, and some key references. A series of diagrams and photographs (of living specimens and of aspects of the morphology, including palps and epigynes) is provided for each genus.

Further information and instructions for using the key can be found in the document attached to ‘Salticidae’ in the top right hand quadrant of the key.

Please send comments, or suggestions for improving the key, and requests for assistance, to

The key can be cited as Richardson, B.J., Whyte, R. and Żabka, M. (2019). A key to the genera of Australian jumping spiders (Aranaea: Salticidae).

Author(s): B.J. Richardson, R. Whyte and M. Żabka

Key to willow species and hybrids present in New Zealand  --  VISIT
 Views: 92

Updated: Mon 05/27/2019 @ 04:04

This key is illustrated with more than 2000 images of willow species and hybrids that are either wild or in cultivation in New Zealand, and the features that are used to identify them. Most illustrations are of willow clones grown in the national willow collection in Palmerston North maintained by Plant and Food NZ.

The key is designed for those with some experience in plant identification, and some features will need at least a strong hand lens (10x or better) to see features such as stamen filament hairs. It will be of use to bee-keepers, farmers with an interest in growing willows as bee food, and conservation estate managers who need to identify willows in the wild.

Writing of this key was funded by the Sustainable Farming Fund, Trees for Bees NZ, the Willow and Poplar Trust, Plant and Food NZ, and Manaaki Whenua - Landcare Research.

How to cite:
Glenny D, Jones T, 2019. Key to willow species and hybrids present in New Zealand.
Accessed at
Author(s): Glenny D, Jones T

Plants of South Eastern New South Wales  --  VISIT
 Views: 209

Updated: Fri 05/17/2019 @ 03:59

Plants of South Eastern New South Wales 


This key is designed for anyone who has an interest in finding out about the plants of south eastern New South Wales. It includes about 2,900 species of plants accompanied by about 10,000 images. It includes Eucalypts, but not ferns, orchids, grasses, or most sedges or rushes. There are about 3,900 relevant species in the area covered by this key.

The key mostly uses easily seen characters and a minimum of technical terms to help with the identification of plants. It is not designed to key out to a single species, though sometimes it does. It is designed to narrow down the possibilities of what the plant might be to a limited number of species. The photos may then help you decide what your plant is.

In most cases, the use of a hand lens or a low power microscope is not necessary for identification, except when counting the number of flowers/florets in a flower head, and deciding whether hairs on stems are stellate (multiple hairs arising from a point, looking like a star), branched, or simple. Identification needing the use of a high power microscope is beyond the scope of the key.

Online key URL:

Also available on:



Related key: Plants and Fungi of south western New South Wales

Author(s): Betty Wood

Spider mite species of Australia (including key exotic southeast Asian pest species)  --  VISIT
 Views: 146

Updated: Sat 12/22/2018 @ 10:59


About the key

This interactive key provides diagnostics for all the species of spider mites (Acari: Tetranychidae) previously recorded in Australia, based mostly on literature records. Several species collected in Australia, but not yet recorded in the literature, are also included (manuscript in prep). In addition, a few select exotic species from south east Asia of concern to Australia’s biosecurity have also been included, and are indicated by ^^ after the species name. Where possible, the diagnostics (images and data) presented in this key were taken from direct examination of the type specimens. A detailed fact sheet has been provided for nearly all species treated. Australian voucher specimens have not been examined for all species treated in this key, and some records are in need of further investigation.

Note well: voucher specimens were not examined for all species treated in this key, and that several groups of species cannot be separated, but this may change with updates. For example, all the Bryobia species listed cannot be separated from each other, and the members of the Oligonychus ununguis species group are notoriously difficult to separate. When this occurs, unfortunately, the key will continue to present you with character state options, even though no further resolution is possible. In these cases, you must rely on examining the fact sheets for each of the remaining taxa. In addition, there are a few species with various taxonomic issues, for example Tetranychus lambi, where there are possibly two species represented in the type series, and as such, separating that taxon cleanly is not possible as certain character features have multiple character states present.

Note also: that the key opens with female characters only. As characters are selected, the relevant male characters will open for the user to see.

Please contact the author ( if you have any issues with the key not working, or suggestions for improvement etc.


Development of this key has been funded under the Australian Government’s Agricultural Competitiveness and Developing Northern Australia white papers, the government’s plans for stronger farmers, a stronger economy and a safe, secure Australia.


Immense thanks go to Ronald Ochoa & Debbie Creel of USNM (Beltsville, USA) for the loan of many critical specimens (including types) and for hosting me in the USNM for several months. Further thanks go to Jeremy Carlo Naredo of MNH (Laguna, The Philippines), Alain Migeon of CBGP (Montferrier-sur-Lez, France), and Jan Beccaloni of NHM (London, UK) for the loan of critical specimens, including many types. I also wish to thank Owen Seeman of QM (Brisbane, Australia), Jurgen Otto of Department of Agriculture and Water Resources (Sydney, Australia), Frederic Beaulieu of CNC (Ottawa, Canada), Andrew Manners (Queensland Government Department of Agriculture and Fisheries), and Jamie Davies DPIPWE (New Town, Tasmania, Australia) for useful comments of draft versions of the key and fact sheets.


Jennifer J Beard, Queensland Museum (


v1.0 December 2018

Author(s): Jennifer J Beard, Queensland Museum

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