PH ) ■C/T/D.E—EPf/ES TIA . 5 5 



hind wings silky white ; cilia ot' botli strikingly glossy. 

 Bodj* and legs grey-brown. 



On the wing in April, July, September, and October — 

 indeed at intervals, in repeated generations, throughout the 

 year, one generation lingering on till the next appears. 



L-A-KVA moderately plump, cylindrical ; head shining 

 chestnut-brown ; dorsal and anal plates rather paler shining 

 brown ; body pinkish-white or yellowish-white, with a large, 

 cloudy brown, internal vessel showing in the ninth segment ; 

 no longitudinal lines ; legs and prolegs, and also the raised 

 dots, of the colour of the body, sjiiracles round, dark brown, 

 rather large. 



Apparently throughout the year in successive generations, 

 on wheaten flour, rice-flour, and meal, spinning silken tubes 

 in odd corners of mills and granaries or flour stores, on the 

 beams where the flour-dust settles, and in any other recess ; 

 also feeding on dried maize (Indian cornj eating into the , 

 softer portion of each grain by means of a hole bitten into 

 its side, and quite at home in a sample of this food lying in 

 a shop window. 



Pupa long and slender ; the antenna-cases long, almost 

 projecting beyond the wings, and with the limb-covers 

 closely appressed ; wing-covers smooth and even ; all this 

 portion shining pitchy-brown ; abdominal segments ridged 

 and deeply divided, glossy red-brown ; anal segment similar, 

 rounded, and furnished with a few hoohed bristles. In a 

 tough silken cocoon attached to any sc'id object among 

 its food. 



This species is found more especially in flour-mills, but 

 also in flour and maize warehouses and shops, and has 

 become a very serious pest; about the year 1877 it seems 

 to have made its first appearance in Europe, being then 

 found at Halle, in Germany, by Dr. Kiihn of that place — 

 after whom it was named by Prof. Zeller. Whence it. 



