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Phlogophora nigroplumbea Warren comb. n  
Euplexia nigroplumbea
Warren, 1912,Novit. zool, 19: 17.
Euplexia albovittata melasema Prout, 1926, Sarawak Mus. J., 3: 216, syn. n.

Phlogophora nigroplumbea

Phlogophora nigroplumbea

Phlogophora nigroplumbea

Euplexia albovittata melasema
Prout; Holloway, 1976: 10.

. The striking black, grey brown and white forewings render this species unmistakable. It is variable, the range of variation being illustrated, but no distinction between the genitalia of the forms could be discovered.

Taxonomic notes
. The species is here treated as distinct from the Himalayan P. albovittata Moore comb. n., a slightly larger species where the costa of the forewing is not dark grey beyond the distal edge of the reniform; in nigroplumbea this grey extends into a grey indentation beyond the reniform. In the male genitalia the basal scobinate patch of the vesica is on the opposite side to that of albovittata (left versus right). The taxa P. gamoeensis Prout comb. n. (Buru) and P. latifascia Prout comb. n. (Ceram) may be conspecific with each other and possibly with nigroplumbea, distinguished from the latter only by a slightly larger, more coarsely and sparsely spined distal sclerotisation in the aedeagus vesica.

Holloway (1976) suggested that a group of taxa all described from G. Kerinci in Sumatra might prove merely to be forms of albovittata. Dissection has proved this to be erroneous. All have the juxta process longer than in the species just discussed and all lack the more basal, more finely scobinate sclerotisation in the vesica. P. chlorophragma Prout comb. n., P. latilinea Prout comb. n. and a species from Peninsular Malaysia (Cameron Highlands; slide 14157) have no ornamentation to the vesica except fine scobination, have a slender harpe, and may thus be conspecific. P. ischnogramma Prout comb. n. is similar but has a very broad process on the juxta and a ventral corrugated zone of sclerotisation in the aedeagus vesica. P. leucomelas Prout comb. n. has a small vesica with the distal sclerotisation present as a long narrow row of spines; the harpe on the valve is broad as in the next species. P. tricolor Prout comb. n. (possibly also in Java, or a closely related taxon; slide 14154) has a normal sized vesica with the distal sclerotisation broadening and becoming more thickly scobinate distally; the juxta process is long, upcurved. P. albifrons Prout stat. & comb. n. (described as a sub- species of albovittata) has a similar aedeagus and juxta to tricolor but the harpe is very broad, triangular, with a central fold along its length. E. albovittata culminis Roepke may be a synonym of tricolor.

In Sulawesi there flies P. rostrifera Warren comb. n., described from a single female from G. Lompobattang. The size and facies of this species suggest a relationship to the Sumatran species swarm.

Geographical range
. Borneo, Luzon, Java.

Habitat preference
. On G. Mulu the species was only taken in the dwarf forest summit zone (at 2360m); on G. Kinabalu it was abundant from 1930m to 2600m. The taxon melasema is based on a single specimen from  2000m on G. Murud, Sarawak.

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