Area "b" of anal legs mainly membi-anous on dorsal side, slightly 

 sclerotized laterally and ventrally, yellowish, with brownish distoventral 

 margin. Dorsal setae situated on membrane near margin; median distal 

 and neighboring seta long, dark reddish brown, lateral seta thinner, 

 moderately long; subapical seta of median mai-gin similar; 5—6 thin brown 

 390 setae further laterally along margin; ventral seta short, thin, yellowish. 



Sclerite "c" relatively large, lai'ger than claw, yellowish in median and basal 

 parts, with darker, bi'ownish latei-al margin; lateral margin visible only 

 basally as an indistinct, reddish brown spot; seta small, light (Figure 646, A). 



Claw (Figure 64 6, B, C) brown, with 2 lai'ge dorsal denticles; seta 1 

 situated in basal part, short, strong; seta 2 lai-ge, situated above end of suture, 

 seta 3 slightly larger, situated dorsally in distal part; seta 6 situated distal 

 to suture, large; setae 7 and 8 situated venti-ally, straight, light; seta 5 

 relatively large, very thin, situated laterally near seta 8; seta 4 situated 

 medially, small, light. 



Case (Figure 647) as long as, or longer than larva, 14—18 mm, made of 

 sand grains, straight, slightly tapering postei-iorly, attached by 2 or 3 liga- 

 ments to a hard substrate or to case of another larva, often forming large 

 clusters; posterior end with a membi-ane with a large, central hole. 



.392 



6*9 



FIGURES 648 and 649. Oligoplectrum maculatum Fourc. 

 Pupa (after Nielsen): 



648 - anteclypeus and labrum (A), right mandible, dorsal (B); 



649 — anterior end of case, dorsal (A), lateral (B), anterior (C). 



491 



