22 Mr. Edward Meyrick on a collection 
17. Periacma orthiodes, sp. n. 
g. 15 mm. Head, palpi, and thorax rather deep ochreous- 
yellow. Antenne grey. Abdomen ochreous-yellowish. Forewings 
elongate, moderate, costa gently arched, apex obtuse, hindmargin 
nearly straight, oblique; orange-yellow ; markings rather dark 
purplish-fuscous ; an oblique spot from inner margin near base; a 
streak along submedian fold from near base to middle of wing, 
with a spot above its middle ; a narrow slightly curved fascia from 
2 of costa to anal angle ; a hindmarginal fascia, moderate at apex, 
narrowed to a point at anal angle; cilia orange-yellow, tips whitish- 
yellowish, at anal angle purplish-tinged. Hindwings grey; cilia 
yellowish, towards anal angle greyish. 
Hab. Yoni; one specimen. Very similar to the 
preceding, but certainly distinct by the different form of 
wing, unspotted palpi, grey antenne, and _ yellow 
abdomen. 
18. Periacma chlorodesma, sp. un. 
&. 18 mm. Head orange-yellow, face and palpi whitish- 
ochreous. Antenne dark grey, base whitish-ochreous. Thorax 
rather dark purplish-grey, Abdomen grey, anal tuft whitish- 
ochreous. Forewings elongate, costa moderately arched, apex 
obtuse, hindmargin oblique, slightly rounded ; rather dark fuscous, 
slightly purplish-tinged ; a whitish-ochreous streak along anterior 
half of costa, meeting a narrow straight ochreous-whitish fascia 
which runs from costa beyond middle to inner margin before anal 
angle ; a suffused ochreous-yellow streak along apical portion of 
costa and upper half of hindmargin ; cilia ochreous-yellow, at anal 
angle dark fuscous. Hindwings grey; cilia light ochreous-yellowish. 
Hab. Koni; one specimen. 
GCOPHORIDA. 
19. Psecadia hilarella, Walk. 
Hab. Fort Stedman. 
BLASTOBASID®, 
ARCTOSCELIS, n. @. 
Head smooth ; ocelli absent ; tongue developed. Antennse 4, in 
g serrulate, shortly ciliated, basal joint moderate, without pecten. 
Labial palpi long, curved, ascending, second joint with appressed 
scales, somewhat rough beneath towards apex, terminal joint 
