Key to species of Monecphora

1. Forewing unicolorous or with a distal spot or transverse band................................................... 5

1’. Forewing with one or two longitudinal bands................................................................ 2

2(1’). Pronotum completely dark-brown; forewing with a yellow longitudinal band from clavus base up to last fourth of corium (Fig. 17)......................................................................................... M. sipolisi

2’. Pronotum not dark-brown............................................................................... 3

3(2’). Forewing with basal half of clavus and a longitudinal band in corium gradually narrowing towards apex, pale ochraceous (Fig. 9)............................................................................................. M. fryi

3’. Forewing with longitudinal band of corium not narrowing towards apex.......................................... 4

4(3’). Pronotum light brown with a longitudinal medial band and another band on latero-anterior margin, ocher-yellow; forewing with costal margin with a band along anterior half and a large quadrate macula opposite to tip of clavus, ocher-yellow.................................................................................................. M. opulenta

4’. Pronotum ocher-yellow with a transverse median stripe and the posterior margin, dark-brown; forewing with a longitudinal ocher-yellow band at middle of corium not reaching tip (Fig. 18)................................... M. longitudinalis

5(1). Forewing unicolorous, opaque basally, becoming transparent distally (Fig. 19).............................. M. pallida

5’. Forewing not unicolorous............................................................................... 6

6(5’). Forewing with a narrow transverse band at level of scutellum tip (Fig. 7)................................ M. cingulata

6’. Forewing without narrow transverse band at level of scutellum tip............................................... 7

7(6’). Forewing broadly marked with brown distally............................................................... 8

7’. Forewing translucent grey with a brown spot distally (Fig. 15)........................................ M. nigritarsis

8(7). Forewing with distal 4/5 of corium dark-brown (Fig. 16)............................................. M. semilutea

8’. Forewing with distal one or two-thirds of corium brown....................................................... 9

9(8’). Pronotum with paired thick brown longitudinal bands (Figs 1–2).............................. M. broomfieldi sp. nov.

9’. Pronotum without longitudinal brown bands, may have transverse band.......................................... 10

10(9’). Forewing with distal two-thirds of corium light-brown and proximal third yellow (Fig. 10).......... M. machadoi sp. nov.

10’. Forewing with distal third of corium dark-brown and proximal two-thirds ochraceous (Fig. 20)............ M. nigroapicata