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Subspecies Disonycha discoidea abbreviata

chrysomelid feeding on flower sap - Disonycha discoidea Disonycha leptolineata? - Disonycha discoidea Flea beetle- Disonycha leptolineata? - Disonycha discoidea Flea Beetle - Disonycha discoidea Red bug - Disonycha discoidea Disonycha discoidea? - Disonycha discoidea Passionflower flea leaf beetle ((Disonycha discoidea)? - Disonycha discoidea Passionflower flea leaf beetle ((Disonycha discoidea)? - Disonycha discoidea
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Longhorn and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Galerucinae (Skeletonizing Leaf Beetles and Flea Beetles)
Tribe Alticini (Flea Beetles)
No Taxon (Disonycha Genus Group)
Genus Disonycha
Species discoidea (Passionflower Flea Beetle)
Subspecies abbreviata (Disonycha discoidea abbreviata)
Synonyms and other taxonomic changes
Disonycha abbreviata Melsheimer, 1847
Explanation of Names
Disonycha discoidea var. abbreviata / Synonymy by Schaeffer (1919), confirmed by Blake (1934).
Identification
Head and pronotum unspotted, reddish; scutellum frequently also reddish. Elytra tricolorate, outer margin red, white discally,
with black sutural and median vitta, both not reaching elytral tip. The median vitta thinly lined in white outside, as often is the
discal macula of the nominate form, or an intermediate seen here:


Disonycha discoidea abbreviata can be mixed up with Disonycha leptolineata only - but quite easily.
In D. discoidea, the elytra are distinctly punctured, while in D.leptolineata, the puncturation is
only feeble, and partially indistinct. Compare:

D. discoidea abbreviata

D.leptolineata
Remarks
Watts (1990), in a paper on biology of D.leptolineata, states:
"Disonycha abbreviata is designed to include various as yet undistinguishable Mexican and Central American species (Blake 1933) and still needs study".

This is a misunderstanding. The type of abbreviata was from Pensylvania, and Blake (1934) did state, that there are southern forms taken for abbreviata,
but probably distinct (1) In a treatment of the fauna S of US (1957), Blake does not mention abbreviata anymore. Under D.leptolineata texana she tells
some problems still exist - but obviously came to the conclusion, that lookalikes from Central America are better classified as D.leptolineata.
Works Cited
1.Revision of the Beetles of the Genus Disonycha Occuring in America North of Mexico
Doris Holmes Blake. 1933. Proceedings of the United States National Museum, Vol 82.