( 33 ) 



Underside olive grey-browu, varied with ochreous white, the pale areas much 

 more restricted than on the npperside. 



Head, palpi, and shoulders white ; antennae grey, with the shaft white ; 

 thorax and abdomen white, partly mixed with olive-grey. 



Expanse of wings : 18 — 30 mm. 



y cJc?, 1 ?, Nakheila, R. Atbara, February 4th— Sth, I'Mi. 



Perissomastix gen. uov. 



Head rough ; tongue obsolete ; antennae longer than forewing, lamellate, the 

 segments closely appressed, basal segment elongate, swollen ; labial palpi well 

 developed, porrect, the segments distinct ; second segment haired beneath, terminal 

 as long as second ; maxillary palpi obsolete. 



Wings shaped and scaled as in Tinea.. In forewing one vein is wanting — 

 presumably 9 ; 7, 8 stalked. In hindwing all the veins are preseut, but o, (j are 

 stalked. In the forewing beneath the base of costa bears a small hair-tuft; the 

 costal vein is shortly fringed along basal half; across the cell before middle there 

 is a cushion of thickened scales, showing as a slight prominence on the npperside. 



Type : F. nigriccps spec. nov. 



74. Perissomastix nigriceps spec. nov. (PI. IV. fig. 9 cj). 



Forew/i/</ : fuscous brown, with some paler scales in parts, without markings ; 

 fringe paler. 



Hindwing : ochreous white, the fringe more ochreous. 



Underside of both wings pale glossy ochreous. 



Head and palpi black-brown, the palpi pale at the joints ; antennae ochreous ; 

 thorax and patagia smooth, grey ; abdomen greyish ochreous. 



Expanse of wings : 19 mm. 



1 ? , Nakheila, li. Atbara, February 5th, 1904. 



