Online Spider Identification Websites

World Theridiidae genera by subfamilies

This site contains a pictorial guide to Theridiidae genera, with extracts of generic definitions.

Pholcidae - the longest legs in the web

Full of high-quality images of pholcids around the world, this is a must-read for those interested in pholcid identification.

Salticid Images

This is by far the best source of references for those interested in Southeast Asian jumping spiders. It contains thousands of specimen and genitalia images.

Nicky Bay's Spider Family Photo Checklists

Detailed checklists of some spider families with mostly in-situ photos.

Araneae: Spiders of Europe

Although it is intended for European users, this site contains a basic identification key that will help beginners to recognise the families.


This resource links specimen images of Southeast Asian spiders and DNA barcodes from quantitative ecological surveys, mainly in Vietnam.

Jumping spiders (Arachnida: Araneae: Salticidae) of the World

This interactive database documents the general appearances, genitalia, descriptions, maps and literature of jumping spiders worldwide.

New E-book and databases of Salticidae (Araneae) of the world

This massive e-book contains illustrations of salticid genitalia worldwide, and some third-party images from other online sources and published material.

Systematics & Monography of Araneiod Spiders

This is a gateway to interactive keys to several taxa, including Tetragnathidae and Nephilinae (now under Araneidae).

The Theridiidae (Araneae) of the World

This e-book provides a well-illustrated key to the theridiids with their diagnoses to the genera.