Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Longistigma

Favret C., Miller G.L. (2012) AphID. Identification Technology Program, CPHST, PPQ, APHIS, USDA

Blackman R., Eastop V. (-2013) Aphids on the world’s plants

Favret C. (2013) Aphid Species File. Version 5.0
BG's 'standard' source, listing valid names, synonyms, and links to references for aphid species of the world.
Navigate by classification tree

SEL USDA Aphidoidea web page, by A.S. Jensen, G.L. Miller, & M.B. Stoetzel

Scientific article on the use of antenna and other features to identify Aphidoidea
1998 article by Stoetzel on the use of antennae and other features to identify Aphidoidea. Nice figures - looks useful.

Lis et al. (2012) Hemiptera Poloniae
Hemiptera of Poland data base; helpful info on the many spp. introduced from Eurasia to N. America

Homoptera on Discover Life

i really don't know how to cite parts of discoverlife properly: some sections show the authors, some don't; some are very good or at least helpful, others are quite unreliable...

Wilson M.R., Turner J.A. (2010) Leafhopper, planthopper and psyllid vectors of plant disease