Animal Base provides free access to early zoological literature where zoological names were originally established http://www.animalbase.org/
Barcode of Life Data Systems, an online workbench that aids collection, management, analysis, and use of DNA barcodes http://www.boldsystems.org/views/login.php
Biodiversity Heritage Library, a digitisation project of some major natural history libraries, including the Smithsonian's http://www.biodiversitylibrary.org/
Biological Research Collections in Germany http://www.biologie.uni-ulm.de/museum/liste.html
Butterflies and Moths of North America http://www.butterfliesandmoths.org
Butterflies & Moths of the World. Generic Names & their Type-species http://www.nhm.ac.uk/entomology/butmoth
Cactus Feeding Moths http://mississippientomologicalmuseum.org.msstate.edu/Researchtaxapages/CactusMoths/Introduction.html
Genitalia Dissecting Group UK - direct link to Pyraloids http://www.dissectiongroup.co.uk/page398.html
Global Biodiversity Information Facility (GBIF) http://www.gbif.org/
GBIF-Deutschland Entomologie http://www.gbif.de/entomologie
HOSTS - a database of the hostplants of the world's Lepidoptera http://www.nhm.ac.uk/research-curation/research/projects/hostplants/
iCollections: British and Irish Pyraloidea (Moths) Collection https://data.nhm.ac.uk/dataset/british-and-irish-pyraloidea-moths-collection
Index Novus Litteraturae Entomologicae (Bibliography of the literature on entomology from the beginning until 1863) http://sdei.senckenberg.de/index
Lépidoptères de France méridionale et de Corse http://pathpiva.wifeo.com
Lepidoptera and some other life forms http://www.funet.fi/pub/sci/bio/life/intro.html
Lepidoptera of southern France and Corsica http://pathpiva.wifeo.com/angleterre.php
LepIndex – The Global Lepidoptera Names Index https://www.nhm.ac.uk/our-science/data/lepindex/
Microlepidoptera on Solanaceae http://idtools.org/id/leps/micro/index.php
Nomenclator Zoologicus http://www.ubio.org/index.php?pagename=NZ
Nomina Insecta Nearctica http://www.nearctica.com/nomina/pdfs/volume3/volume3.htm
Philippine Lepidoptera https://philepidoptera.wixsite.com/moths/-pyralidae-snout-moths
Pyralids of Borneo old version: www.pyralidsofborneo.org new version: http://web.pyralidsofborneo.org/
Sherborn's Index Animalium (all species 1758 to 1850) http://www.sil.si.edu/digitalcollections/indexanimalium/
Thomson Index to Organism Names (ION) http://www.organismnames.com/query.htm
Tree of Life Lepidoptera http://tolweb.org/Lepidoptera
Zoobank http://www.zoobank.org/query.htm
Zobodat - Zoological-Botanical-Database http://www.zobodat.at
Australian Moths Online http://www.ento.csiro.au/anic/moths.html
Insects in France http://aramel.free.fr/
Lepiforum - Identification of Lepidoptera and their preimaginal stages. A comprehensive photo gallery with comments on European Lepidoptera, predominantly Germany, Austria and Switzerland http://www.lepiforum.de/
Guide to the moths of Great Britain and Ireland http://ukmoths.org.uk/
Japanese Moths Photographs http://www.jpmoth.org/
Moths and butterflies of Europe and North Africa, predominantly Mediterranean http://www.leps.it/
Image gallery of New Zealand Pyraloidea, incl. type specimens, notes on Scopariinae and threatened species factsheets http://www.landcareresearch.co.nz/resources/identification/animals/large-moths/image-gallery/pyraloid-moths
North American Moth Photographers Group http://mothphotographersgroup.msstate.edu/Plates.shtml
Berlov's colour atlas of Siberian Lepidoptera http://olegberlov.narod.ru/pyr.html
Boris Loboda's photo page on Ukrainian animals and plants http://barry.fotopage.ru/