Links http://www.york.biosis.org/zrdocs/taxhier/comnam_w.htm
http://www.cals.ncsu.edu/course/ent425/compendium/webspi~1.html
http://ag.arizona.edu/tree/eukaryotes/animals/arthropoda/hexapoda/embiidina/embiidina.html
Referencias http://www.ffbooks.com/nh-74.htm