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Species Vella fallax

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Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Neuroptera (Antlions, Lacewings, and Allies)
Suborder Myrmeleontiformia (Antlions and Allies)
Family Myrmeleontidae (Antlions & Owlflies)
Subfamily Myrmeleontinae (Giant, Long-tailed, and Pit-trapping Antlions)
Tribe Acanthaclisini (Giant Antlions)
Genus Vella
Species fallax (Vella fallax)
Synonyms and other taxonomic changes
Vella fallax (Rambur, 1842)
V. fallax haitiensis is now treated as V. eggerti(1)
Explanation of Names
Vella fallax (Rambur, 1842)
from the Latin fallāx ('deceptive, deceitful'), the origin of the English root fallac-(2)
1 subspecies in our area(3)(1)
V. fallax texana
very large, wingspan to circa 120 mm, with tropical specimens even larger (Banks, 1927; Internet searches)

Southwest into Neotropics. Subspecies:
V. fallax texana TX-UT-CA
Print References
Banks, Nathan (1927). Revision of the Nearctic Myrmeleonidae. Bull. Mus. Comp. Zool. 68(1): 1-84 (BHL link)
Eaton and Kaufman, pp. 226-227 (4)
Works Cited
1.Antlions of Hispaniola (Neuroptera: Myrmeleontidae)
R.B. Miller, L.A. Stange. 2011. Insecta Mundi 0182: 1-28.
2.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
3.Species catalog of the Neuroptera, Megaloptera, and Raphidioptera of America North of Mexico
Penny N.D., Adams P.A., Stange L.A. 1997. Proc. Calif. Acad. Sci. 50: 39‒114.
4.Kaufman Field Guide to Insects of North America
Eric Eaton, Kenn Kaufman. 2006. Houghton Mifflin.