ruhl. 9. V. 1930. 
HETERORACHIS. By L. B. Prout. 
33 
H. disconotata Prout is paler and less bright, more thinly scaled, than simplex (much like Chlorocoma 
dojna), has the apex of the forewing acute, the forewing with a slight, the hindwing with a conspicuous, dark- 
green cell-spot. (J unknown; $ with the pectinations as in the two preceding. Barberton, '^Fransvaal. 
H. fuscoterminata Prout is distinguished by having a brown, black-mixed terminal line and the white 
fringes bearing small dots at the veins. Apex of forewing rather sharp. $ pectinations slender, as in the three 
preceding. Natal. 
H. melanophragma Prout (4 a). Distal margin of forewing a little more oblique than in most Hetero- 
racliis. Much smaller than malacliitica, cell-dots mixed with reddish, the white vein-dots small, but generally 
connected by a very fine line, the markings of the fringe less sharply defined. Hindwing with 1st median not 
separate, usually stalked. Diego Suarez. 
H. despoliata Prout has the red, black-mixed crown, antennal shaft and base of costa which characterize 
devocata, but has much simpler borders; a weaker dark terminal line than in melanophragma ; fringe paler than 
in devocata. Transvaal. 
H. devocata. Antennal pectinations in both sexes moderately long. Hindwing with 1st median stalked 
or from apex of cell. Three races are distinguishable. — devocata Walk. (4 a) has the red head and margins 
strongly darkened, the spot at tornus of forewing well developed, the fringes red-brown. Natal. — roseifimbria 
subs]!, n. has the red parts much brighter, the tornal spot reduced, the fringes also brightly rosy. Transvaal, 
the type from Sabie, December 1911 (W. Grubb) in coll. Prout. — mozambica Prout is a dwarf form with 
nearly the colouring of devocata but the tornal spot reduced. Mozambique. A few sjiecimens which I have seen 
• from Rhodesia and from Kenya Colony (low altitudes) nearly agree with this. 
H. glofiola Th.-Mieg. As small as mozambica. Antennal shaft and costal margin of forewing white, 
the latter beneath slightly rosy proximally; the red-browm terminal line very pale; fringes white. Hindwing 
beneath whitish. Delagoa Bay, 1 Perhaps a very pale aberration of mozambica, in which case the latter 
name will sink. 
H. chloe Th.-Mieg. Size of gloriola. Antenna similar. Forewing relatively acute. Fringes pale greenish 
proximally, white distally. Both wings with a dark cell-dot; no terminal lines. Face reddish brown; vertex white; 
occiput green. Delagoa Bay, 2 (Jd'. 
H. lunatimargo Prout (4 b). At least as large as devocata. Hindwing bluntly angled. Named from the 
conspicuous whitish terminal lunules, which are finely bordered wdth red-brown proximally and distally. First 
subcostal of forewing stalked with the others. Congo (the type), French Guinea, Gold Coast and Nigeria ; perhaps 
also Kenya Colony. 
H. carpenteri Prout is extremely similar to lunatimargo, but considerably smaller (20—24 mm) and with 
long terminal joint to the $ palpus, thus not a typical Heterorachis. Discovered on the Sesse Archipelago by 
Dr. Carpenter but also known fi’om Sierra Leone, the Ivory Coast and S. Nigeria. 
H. idmon Fawcett (5 c) differs from lunatimargo in its broader borders and has the hindwing rather 
less angled, 1st subcostal of forewing not stalked. Kenya Colony. 
H. tornata Prout (4 b) is similar to trita but smaller, at least in the (J. Face more mixed with black; 
vertex and base of antenna reddish (in trita white). Border of forewing broadening behind 2nd submedian into 
a small blotch. Hindwing with 1st median stalked or from a point with 3rd radial. Both wings with a darker 
green cell-dot. Madagascar: Diego Suarez. 
H. triangularia Swinh., founded on a single from Madagascar, is doubtfnlly placed, perhaps a strongly 
pectinate offshoot of Bathycolpodes, with which it agrees in its black face and its underside (nearly as in B. 
subfuscata). Expanse 23 mm. Borders less irregular than in B. sidjfuscata, costal border of forewing also pale, 
the green ground-colour on fore wing forming a triangle. Hindwing with distal margin extremely weakly concave 
between the radials. 
H. (?) diphrontis Prout (4 b) has much more extended markings than any other Heterorachis and they 
are generally lighter, less red. Aberrant in having the tongue quite rudimentary. Hindwing with 1st median 
separate. Madagascar: Diego Suarez. 
H. (?) insolens Prout (4 b), described doubtfully as an aberrant Neurotoca, may be placed here, but is 
also aberrant in its rudimentary tongue and further deviates in having lost (or nearly lost) the proximal spurs 
of the cJ hindtibia, while in the $ they are short and closely approximated to the terminal ones. Crests wanting. 
Head, antenna and base of costa bright red, as in Omphax rhodocera (2 h). S. Rhodesia. 
XVI 
disconofaAa 
jUHCO- 
fermlnula 
melano- 
phragma 
despoliata. 
devocata. 
roseifmi- 
bria 
mozambica 
gtoriota. 
chtoe. 
tunatimar- 
go 
carpenteri. 
idmon. 
tornata. 
triangu- 
taria 
diphrontis. 
msotens. 
0 
