164 
MICROLEPIDOPTERA OF NEW GUINEA 
absence of a costal fold, by having veins 7 and 8 stalked, by having vein 3 
originating from before angle of cell in fore wing, and by the possession 
of the genitalia of a cacoeciine type, appeared to be close relatives of the 
brownish and fulvous-coloured species of Adoxophyes, and to belong to a 
different tribe, viz. the Cacoeciini. There was, however, one last link in our 
chain of arguments missing: the females of Chresmarcha sensu stricto 
remained unknown. It was, therefore, a great satisfaction to find the 
female of sibyllina among the present material, as a last proof of the true 
nature of the present genus. Exactly in accordance with our hypothesis, 
this female insect bears the same white and black markings as the male, 
and possesses also a neuration of both fore and hind wing in all respects 
identical with that of Meyrick’s male type specimen of Chresmarcha 
sibyllina. 
It may be stressed that we regard the male specimen as the type of the 
species sibyllina , as it has been recorded in the description before the 
female; the latter should be named Chionothremma patarea (Meyrick). 
The male accordingly becomes the type of the present genus. As most 
species of Chionothremma possess the above mentioned white and black 
colouring, and as this may be regarded as the basic scheme of coloration 
of this genus, we surmize the Chionothremma colouring to be genuine, and 
the colouring of Chresmarcha. to be due to mimicry, and not on the 
contrary. 
Herewith the tricks of Chresmarcha, are not yet exhausted. We disco- 
vered a specimen of this genus in the present collection which apparently 
is a mimic of Lepidoptera with a quite different scheme of coloration also 
very common in New Guinea; this colouring appears independently in 
several families, as Zygenidae, Geometridae, Lithosiidae, Callidulidae, 
etc. ; it consists of a white ground colour with the apical half or third of 
the fore wing deep wine-red, edged with a blackish suffusion. Examples 
- — possibly genuine — of this colouring can be found in the genus Damias 
(Callidulidae). 
The resemblance of Chresmarcha enae?nargyrea spec, nov., described 
below, with a representative of the Damias- group is so striking that w r e 
were completely deceived and put the single specimen aside under macro- 
Heterocera; only a thorough re-investigation of the specimen involved 
afterwards revealed its true nature 1 This species resembles also Zacorisca 
daphnaea Meyrick, itself possibly a mimic of the above mentioned 
“Damias coloration”. 
As said above, the nearest relative of Chresmarcha appears to be the 
genus Adoxophyes , representing a group of species with rather uniform 
colouring and markings, altogether different from the “black and white” 
type, viz., with an ochreous, brownish or fulvous ground colour, and 
with the ordinary “basal area”, “central fascia” and “costal patch”. The 
genus Chresmarcha, as understood by us, may be redescribed as follows. 
Head with narrow, loosely appressed hair-scales, face short-scaled. 
