''Macna rubra'' is a species of snout moth in the genus ''

Macna ''Macna'' is a genus of snout moths. It was described by Francis Walker in 1859. Species * '' Macna atrirufalis'' Hampson, 1897 * '' Macna camiguina'' Semper, 1899 * '' Macna coelocrossa'' * '' Macna darabitalis'' (Snellen, 1895) * '' Macna ham ...

''. It was described by George Thomas Bethune-Baker in 1908. It is found in

New Guinea New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is about 48 mm. The forewings are bright red from the base to the antemedian line. There is a short oblique dark basal line. The postmedian line is dark crenulate and the area between this line and the antemedian is reddish grey. The terminal area is reddish grey and the wing is more or less finely irrorated with black. The hindwings are uniform greyish brown, with a terminal band of reddish. Adults have been recorded from January to March.New Heterocera From British New Guinea
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References

Moths described in 1908 Pyralini {{Pyralini-stub