Equatorial African Micro-lepidoptera. 37 
GELECHIADA. 
PrILOTHYRIS, gen. Ns 
(rridov = wing, Oipls = a window.) 
Tyee. Ptilothyris purpurea, Wism. 
Antenne shorter than the forewings, somewhat thickened beyond 
the base: ¢ bipectinate 2}, each pectination strongly biciliate ; ? 
slightly biserrate ; basal joint smooth in both sexes. Mawillary palpi 
slender, drooping. Labial palpi very long, recurved, smooth; second 
and third joints of about equal length, the former somewhat flattened 
and sabre-shaped, the latter very slender and sharply pointed. 
Haustellum long. Head smooth, with side-tufts behind eyes. 
Thorax smooth. Forewings elongate, of approximately even width 
throughout, costa slightly depressed at the base and apex, termen 
slightly oblique, not sinuate, tornus rounded. Neuration, 11 veins 
(9 absent, coincident with 8); 7 and 8 stalked, 7 to costa above 
apex ; 2,3 and 4 from a recurved common stem ; 5 from lower 
angle of cell, remote from 6. Hindwings broader than the fore- 
wings, scarcely sinuate beneath apex ; ¢ with a semi-transparent 
patch. Neuwration, 8 veins; 6 and 7, as also 3 and 4, from a short 
stalk; 5 straight. Abdomen slightly flattened behind middle ; 
d with genital segments densely hairy ; uncus strongly developed. 
Legs smooth, hind tibiz with elongate slender tarsi and rather long 
spurs. 
Allied to Adelomorpha [fonnded by Snellen (Tijd. v. 
Kot., XXVIII, 31-2, Pl. I11., 1-3, 1885) on the characters 
of a single species from Celebes| but differing chiefly in 
the shorter and distinctly bipectinate antenne, which in 
Adelomorpha are biciliate. ‘lhe occurrence of this genus 
in tropical Africa is interesting, especially in connexion 
with other forms from which probably it may have been 
derived. Idiopterya, Wlsm., possesses vein 9 in the: 
forewings from the same stem as 7 + 8, while the loss 
of this vein is characteristic of Adelomorpha and Ptilo- 
thyris. A tendency in the same direction is shown in the 
hindwings, where 3 and 4, which are separate in [diopteryz, 
arise from a short stalk in both these genera. It would 
be interesting to disccver a form in which all these 
stalked veins have become coincident. 
