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Genus Dicromantispa

Mantidfly - Dicromantispa interrupta Mantisfly? - Dicromantispa sayi Dicromantispa interrupta Dicromantispa sayi? - Dicromantispa sayi - male - female 9052274 Mantisfly - Dicromantispa sayi 9052189 Mantisfly - Dicromantispa interrupta Dicromantispa interrupta Dicromantispa sayi? - Dicromantispa sayi
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Neuroptera (Antlions, Owlflies, Lacewings, Mantidflies and Allies)
Suborder Hemerobiiformia (Lacewings, Mantidflies and Allies)
Family Mantispidae (Mantidflies)
Subfamily Mantispinae
Genus Dicromantispa
Synonyms and other taxonomic changes
Members formerly treated in Mantispa
Explanation of Names
Dicromantispa Hoffman 2002
Greek dicro 'forked' + Mantispa
Numbers
2 spp. in our area, 5 total(1)
Range
New World (Canada to Argentina); transcontinental in NA(2)(3)(4)
See Also
Dicromantispa sayi and Leptomantispa pulchella are often difficult to distinguish and easy to confuse.
In Dicromantispa, the pronotum has evident transverse ridges and very short, fine setae ("hairs"), concentrated in small (barely visible) patches at the anterior and posterior ends of the pronotum, with at most only very sparse tiny hairs in between (hard to see in most images, but visible at higher resolution):
In Leptomantispa, pronotum is smoother, with short setae distributed more uniformly throughout the entire length:
Compare Figs. 607 & 608 here and Figs. 582 & 585 here.
The above characters are subtle and somewhat variable...which is part of the difficulty here. Wing venation characters can also help separate these two taxa (see the extensive comments here).
Works Cited
1.Neuropterida Species of the World catalogue (by J.D. Oswald)
2.Systematics of the Mantispinae (Neuroptera: Mantispidae) of North, Central and South America
Kevin M. Hoffman. 1992. University Microfilms International.
3.Mantispidae (Neuroptera) of Mexico: distribution and key to genera
Reynoso-Velasco D., Contreras-Ramos A. 2008. Ann. Ent. Soc. Am. 101: 703-712.
4.The Mantispidae (Insecta: Neuroptera) of Canada, with notes on morphology, ecology, and distribution
Cannings R.A., Cannings S.G. 2006. Can. Entomologist 138: 531-544.