Prioneris vollenhovii

This article follows the catalogue's species treatment, Prioneris vollenhovii. The FUNET bibliography also records it as Prioneris philonome vollenhovii. The Sabah compilation uses the spelling vollenhovi. Those differences should be preserved when citing records rather than mistaken for three separate species. [1][3][4]

The Sabah guide compares it with cornelia, describing darker veins with a purplish tint and a lighter hindwing. Its quoted forewing length is 35–38 millimetres. Wallace's original account places a red patch near the underside hindwing base; the exact surface matters to that comparison. [2][4]

Sarawak, Borneo, is the original geographic anchor. The Sabah compilation includes the taxon in its Bornean endemic treatment. Historical locality and regional coverage establish context, but they do not yield a complete modern distribution across the island. [2][4]

The sources checked here chiefly document adults. An immature-stage series should end with a determined Bornean adult, carrying the exact rank adopted in the study. That would allow biological observations to remain usable if vollenhovii is later treated within philonome again.

A specific larval food plant is not established by the checked adult descriptions. An original rearing report would need a plant determination, feeding evidence and the emerged butterfly. Host claims for philonome should be inspected for locality and taxonomic breadth before being transferred here.

Living behaviour cannot be reconstructed from the posture of a pinned plate. Observers could use the adult comparison to identify individuals, then document flight height, resting place and feeding events. Each behaviour needs its own evidence rather than a narrative inferred from wing colour.

Vollenhovii illustrates how a recognizable named population can move between species and subspecies treatments. The useful scientific question is why a revision chooses a particular boundary. Type-linked specimens and localized series can test that decision more directly than an online list of names.

The ecological scope depends on the rank choice. If Bornean vollenhovii is pooled with Javan philonome, a summary may conceal geographic differences. A population-specific host and habitat account would remain valuable under either treatment, provided its records retain their original determinations.

Wallace's Sarawak description and the current regional compilation provide a traceable naming history. The bibliography documents an alternative combination. The article uses one display name for clarity while recording the others in context; historical spelling does not establish a new biological entity. [2][3]

The Bornean endemic listing is not a current global threat assessment. To evaluate status, surveys would need explicit locality, repeat visits and a consistent determination. The rank question also needs to remain visible when searching assessments and combining regional records.

Show upper and lower surfaces from the same individual, and compare the same sex of cornelia. The red basal mark, vein pattern and pale fields should all remain visible. A close crop that removes the wing apex can discard useful shape information.

A reference-based illustration should preserve the Bornean specimen's actual pattern and document the label combination. It should not merge the paler areas of cornelia with the basal patch of another sawtooth. Rank uncertainty can be explained in the caption without distorting the butterfly.

Keep the specimen in a stable, dry display location. Store alternate combinations and the bibliography with the catalogue record. When a determination changes, retain the original label as evidence of the historical taxonomic concept under which the insect was acquired. [5]

What modern revision explains species rank against philonome? Which characters remain stable across Bornean males and females? Where is breeding directly documented? These questions would connect the original description with a defensible current identification and a living ecological account.

Use the Sabah adult plate for comparison, Wallace for the original Sarawak discussion and the catalogue for the present naming basis. FUNET is a bibliographic trail to alternative treatments. It should lead to the relevant revision rather than replace examination of its evidence.