Nacaduba hermus
species of insect
Nacaduba hermus, the pale four-line blue, is a species of lycaenid butterfly found in Indomalaya. The species was described by Baron Cajetan von Felder in 1860.
Description
Male
The upperside is dark purplish brown. The forewings and hindwings have black anteciliary lines. The hindwing has two black spots that are nearly equal, one in interspace 1 and the other in interspace 2. The spots have a silvery white edge on the outerside. The tail is black tipped with white.
The underside is hoary brown. On the underside of the forewing are transverse bands of the ground colour defined by fine white lines:
A band across the middle of the cell extends from the subcostal vein to vein 1.
The discocellulars and a bisinuate discal band extend from veins 1 to 7; succeeding these are an inner and an outer subterminal series of transversely elongate spots somewhat darker than the ground colour and a slender black anteciliary line.
“Nacaduba hermus” enters the record as species of insect. Crown Archives preserves that source wording while asking what Nacaduba, hermus and species can confirm, complicate or overturn.
Why this record matters
“Nacaduba hermus” is worth following because a concise public description often conceals a longer documentary argument. Here, Nacaduba, hermus and species provides the most credible route into that argument.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated May 28, 2026. The linked authority identifier is Q6957066. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1860.
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This entry incorporates text from “Nacaduba hermus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.