Rhotana, Walker. A, 1857

Zelazny, B. & Webb, M. D., 2011, 3071, Zootaxa 3071, pp. 1-307 : 108

Key to the species of Rhotana from Java, Sumatra and adjacent islands

1. Forewings with prominent black mark(s) near hind margin distad of clavus (e.g. Fig. 232f)........................... 2

- Forewings without such mark(s) distad of clavus............................................................. 3

2. 7-8 distinct forewing marks separated by a red stripe ( Fig. 232f)............... R. pavo (Bierman) ( R. pavo group), p. 92

- One elongated black forewing mark, containing three white spots ( Figs. 33 and 34)................................................................................................... R. marmorata Zelazny (ungrouped), p. 101

3. Basal half of forewings infuscated, most of apical half clear, but with dark stripe(s) accompanying apical cross-veins (e.g. Figs. 249f or 197f)......................................................................................... 4

- Forewings without dark stripes accompanying apical cross-veins................................................ 6

4. Forewings with infuscated band along apical cross-veins very narrow ( Fig. 249f), male genital styles elongated, triangular and pointed ( Fig. 249i).................................................... R. semiopalina Muir (ungrouped), p. 103

- Forewings with apical cross-veins lined by two distinct infuscated stripes, some distance from cross-veins (e.g. Fig. 199f).. 5

5. Hindwings with a black spot around base of Ms2 and several dark stripes across apical third of wing ( Fig. 197g)........................................................................ R. jacobsoni sp. nov. ( R. formosana group), p. 69

- Hindwings with two black spots around base of Ms2, but without dark stripes ( Fig. 199g).................................................................................... R. transversolinea Melichar ( R. formosana group), p. 70

6. Forewings mottled with faint infuscation, a red mark around last subcostal sector ( Fig. 253f)................................................................................................. R. venosa Distant (ungrouped), p. 105

- Forewings colourless with some dark spots in basal quarter, at apex of Cu, and around last subcostal sector ( Fig. 217f); apical part of male aedeagus with two processes, each ending in numerous branched processes ( Figs. 217m, p).................................................................................... R. ramosa sp. nov. ( R. ornata group), p. 83