seta of trochanter shorter than apical. Anterior seta of femur short, 

 thin, situated subapically; ventral setae of femur very long, thin, transparent, 

 longer than basal seta of trochanter; ventral chaetoids short, dense, of 

 uniform size. 



Ventral chaetoids of mid -femur relatively large, longer in basal area 

 than in apical area, as in Semblis. Anterior subapical seta of tibia in 

 form of blunt, thick spine, like the posterior distoventral seta, but slightly 

 longer and thinner. 



Ventral setae of hind femur yellowish brown, thick; distoventral seta 

 of trochanter the same, as long as distoventral seta of femur; chaetoids 

 relatively large, longer in the basal than in the apical area but not as 

 thick as in Semblis. 



Dorsal process of abdominal segment 1 conical, pointed. Gills present 

 on segments 1—7. 



(58) 



FIGURES 93-96. Oligostomis reticulata L.: 



93 — tergite of abdominal segment 9; 94 — case of larva (A) and pupa (B); 

 95 — labrum, anteclypeus and left rudimentary mandible of pupa, dorsal (A), 

 left rudimentary mandible of pupa, ventral (B); 96 — right anal lobe of female 

 pupa, lateral. C94, B, 95, A, 96 - after Siltala; 95, B - after Ulmer). 



Tergite of abdominal segment 9 (Figure 93) light yellow, with a transverse 

 submarginal stripe of large dark reddish brown dots anteriorly, smaller 

 dots on each side; medioanal setae long, black; lateral setae, in contrast 

 to Oligotricha, equally thick, long; anterior -margin and intermediate 

 setae thin and light. 



67 



