Synonyms and other taxonomic changes
Disonycha abbreviata Melsheimer, 1847
Explanation of Names
Disonycha discoidea var. abbreviata / Synonymy by Schaeffer (1919), confirmed by Blake (1934).
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
"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
some problems still exist - but obviously came to the conclusion, that lookalikes from Central America are better classified as D.leptolineata.