514 



Tarsus with shorter setae; posterior surface with a strong, dark subapical 

 seta; a similar anterior subdorsal seta in the middle; ventral side with 

 10—11 thin spines, one of them larger than the others. Claw thin, moderately 

 long, slightly curved; basal seta in form of a thin, light spine. 



Hind coxa narrow, moderately long, only slightly wider in basal part; 

 basodorsal seta and posterior apical dorsal seta long; anterior apical dorsal 

 seta shorter: secondary dorsal setae sparse; anterior surface with short 

 setae basally and in the middle, including both primary setae: ventral side 

 with numerous, large setae, especially in the middle; both distoventral 

 setae long. 



Trochanter r odlike, almost as long as femur; anterior and posterior 

 setae large, situated more distal than usual: both ventral posterior primary 

 setae and anterior basal seta long; short and moderately long, strong setae, 

 including 2 anterior primary setae in the distal part. Femur straight, 

 rodlike; basodorsal primary seta and apical dorsal primary seta long, 

 strong; anterior and posterior setae the same; both ventral setae situated 

 among secondary setae; secondary setae short to long, along whole femur, 

 mainly in the distal part. Tibia narrow, longer than femur: distal part with 

 a long, dorsal seta and 2 subdorsal setae, an anterior and a posterior; 

 2 large setae close together in the middle anteriorly: dorsal side with a 

 longitudinal row of sparse, short setae and several moderately long, thin 

 setae; ventral side with 11—12 light, small to large spines. Tarsus more 

 than half as long as the tibia, chaetotaxy as on the mid-tarsus (Figure 818). 

 Claw thin, slightly curved, longer than on midlegs; basal seta in form of a 

 thin, light spine. 



First abdominal segment with large dorsal process; lateral processes 

 displaced ventrally, with light disk with spines and an indistinct, dark 



sclerite. Lateral line on segments 3 — 7, 

 with small, light hairs; segment 8 without 

 sclerotized dots. Gills on segments 2 — 8. 



Postsegmental pleural gill of segment 2 

 thin, smaller than the others; segment 8 

 only with dorsal gills. 



Tergite of segment 9 white, indistinct; 

 medioanal and lateral setae thick, long, 

 pinkish brown; intermediate and anterior 

 setae short, thin. 



Sclerite "b" of anal legs yellowish; 

 distal part with 2 long setae above the claw 

 and 2 shorter and thinner setae laterally; 

 a large, thick seta and 2 thin, short setae 

 dorsally: sclerite "c" very small. Claw 

 pinkish brown, with 2 dorsal denticles. 



Case made of plant fragments, more or 

 less smooth, with large, round posterior 

 opening (Figure 819). 



Pupa. Length 7.0— 9.2mm in male 

 pupae, 9 — 11 mm in female pupae; body 

 narrow. Antennae thin, coiled around body about 5 times in male pupae, 

 3.5 times in female pupae; proximal segment almost as long as head. 

 Labrum small, with blunt, wide anterior inedian process. Mandibles 

 820, A) 



FIGURE 820. Oecetis furvaRamb. 

 Pupa: left mandible, ventral(A), genitalia 

 and anal rods of male pupa (B) and female 

 pupa, ventral (C) (after Klapalek). 



642 



