posteriorly, on the sides; anterior margin reddish brown; posterior margin 

 and most of the lateral margin black or brownish black in some places; 

 each half of sclerite with oblong groups of dots. Sclerite, except the parts 

 with dots, with small, reddish brown covering setae interspersed with small 

 light hairlike spinules. Anterior margin with blunt anteriorly-directed 

 spinelike brown setae, which are uniformly distributed, numbering 38—40. 

 Primary and a few secondary surface setae of the ordinary type, thin and 

 short; anterior -angle seta light, small, situated near the margin; anterior 

 third of sclerite with a short yellowish seta near the median stripe; 

 2 similar small, lighter setae lateral to this seta, nearer the anterior 

 margin; a relatively large, light brown seta (medioanal seta?) in posterior 

 half of sclerite near the light median stripe; 2 small light setae near the 

 suture; a small light seta in the middle posterior to the anterior group of 

 dots. 





FIGURE 669. Arctopsyche ladogensis Kol. Mesonotum (A) and covering setae on the 

 left side (B) 



(469) 



FIGURE 670. Arctopsyche la dogensis Kol. Left foreleg, anterior (A), right 

 foreleg, posterior (B) 



533 



