270 t^'^y' 



The colour of the anterior-wings varies from cliestnut-brown to rery pale yel- 

 lowish-ochre, the inner margin being always paler than the rest of the wing. The 

 longitudinal costal and central stripes are silvery-white, the latter being vevy broad 

 up to beyond the middle, where it is toothed, and is continued right up to hind 

 margin. The fringes are rather lighter than the ground colour. * 



The posterior-wings in the darker specimens are darkish grey, but are quite pale 

 in the lighter one. 



Head whitish, thoi'ax pale yellow. Palpi white, thickly dusted with dark brown 

 beneath and outside, end joint as long as tlie head, total length rather longer than 

 the head and thorax. Abdomen in fresh specimens silvery. Apex of anterior- wings 

 very acuminate. 



This fine Pleurota, which will ])recede aristella, was taken at 

 Gruehna in June ; 1 (^ , measuring 25^ mm , and 2 $ , measuring 24 

 mm., being in my collection. 



From Sclilcdf/eriella, which it follows, it may be distinguished by 

 its larger size, its yellower and generally much paler colour, its broader 

 and silvery-white costal stripe, and by its very broad, silvery -white, 

 and distinctly toothed median stripe. The head and palpi, which in 

 ScM(dgeriella are grey, the latter being densely irrorated with black, 

 are in the present species white, with the dustings of the palpi much 

 less dense. The thorax and abdom.en are whitish in the present 

 insect, but are brown in SclilcegerieUa. 



From aristella it may be at once recognised by its much larger 

 size, being nearly half as large again. It is also of a yellower and 

 paler colour, the median stripe is also broader and toothed, and the 

 liead and palpi are whiter in algeriella than in aristella. 



From macroseUa, which it most nearly approaches in size and ]^g, 

 general appeara,nce, our species may be recognised by its colour 

 being brighter and redder, also by its costal stripe being silvery, 

 whereas in macrosella the costal stripe is very pale ochre colour, and 

 quite lustreless. 



In algeriella the central stripe is very broad and silvery up to 

 rather beyond the middle, where it is distinctly toothed, and from 

 whence it becomes narrower up to the hind margin, whilst in macro- 

 sella this stripe is of almost uniform width, and much less silvery. 

 The palpi, head, and thorax are white in algeriella, but pale ochre 

 in macrosella. 



Also in macrosella, the females have the anterior-wings almost 

 falcate, but in our present species this important feature is wanting. 



The Bracken, Augustus Eoad, 



Edgbaston : April "Jth, 1885. 



