MICROLEP1DOPTERA OF NEW GUINEA 
39 
. Key to the species of Arizelana 
1. Ground colour shining snow-white margaritobola spec. nov. 
Ground colour pale yellowish-ochreous, retinate or irrorated with orange . 2 
2. Palpus moderate, median segment strongly dilated with roughly projecting 
scales above and beneath pyroplegma spec. nov. 
Palpus rather long, median segment moderately dilated posteriorly with roughly 
appressed scales bibatrix spec. nov. 
Arizelana margaritobola spec. nov. (figs. 247, 251) 
paoyaofarjg - a pearl, fid/./.oi = to throw 
o 10.5—13 mm. Head deep yellowish-ochreous. Palpus chestnut -brown, 
a longitudinal streak above middle of median segment and extreme tip 
of terminal segment pale oclireous. Antenna pale ochreous, ringed with 
reddish-fulvous. Thorax deep fulvous mixed with bright fulvous and white 
scales, centre white? (damaged). Abdomen dark grey, basal segment white, 
anal pale ochreous, anal tuft pale ochreous. Legs pale ochreous, anterior 
and median inluscated and pale-ringed above. Fore wing elongate- 
triangular, rather narrow, with a narrow costal fold to before 1 / s , its edge 
smooth, costa moderately curved throughout, apex obtuse, termen laintly 
concave in middle, little rounded below, rather oblique. Snow-white, 
markings deep fulvous, edged with bright fulvous and suffusedly with 
pale yellow', scattered with round patches of leaden-grey shining scales. 
Basal patch moderate, its edge slightly inwardly oblique, almost straight, 
with a small rounded projection above middle of disc and a smaller 
excavation above this, deep fulvous, paler fulvous towards costa and 
edge; extreme base of dorsum whitish, sometimes connected with an ovate 
inwardly oblique w'hite spot beyond base of costa not reaching edge of 
wing; a transverse, erect-triangular irregular white spot on basal patch 
posteriorly, leaving a rather broad edge of fulvous colour along dorsum, 
and along posterior margin of basal patch; all edges of white markings 
suffused with pale yellow; posterior 3 / s of wing deep fulvous, paler towards 
edges except in tornus ; anterior margin of thus coloured area from just 
beyond 1 / i of costa to 4 / 5 of dorsum, faintly serrate, straight above, slightly 
concave and vertical above dorsum, edged throughout with pale yellow 
suffusion; containing three large snow-white spots: first on costa rather 
beyond middle, almost circular, faintly edged with pale yellow suffusion ; 
second between first and tornus, circular; third about twice as large, 
elongate-ovate, slightly constricted in middle, along and just before 
terminal edge from below apex to vein 4, space between second and third 
spots light fulvous; patches of leaden-grey shining scales: before, below 
and beyond first circular white spot, first patch small, second and third 
patches transversely elongate, third reaching to costa; fourth shining 
patch elongate, vertical, connecting second white spot with dorsum before 
tornus; a row of some four small round shining dots in tornus and along 
lower third of termen. Cilia glossy light yellow, dark fuscous on costa 
