temperature of 16.3°; in larvae of medium age of Phryganea striata 

 it drops to 2.82 mg/ hour at 19.8°; in swimming larvae of Triaenodes 

 b i c ol or (Leptoceridae), 3.7 mm long, it is 2.64 mg/hour at 20.1°, while in 

 the small mobile larvae of Limnophilidae" it is much lower: in Nemotau- 

 1 iu s pun c t at ol in e at u s (16. 2mm long, t = 20.6°) it is 1 .14 mg/hour, 

 in Limnophilus rhombicus (t = 21.2°) 0.18 mg/hour; in larvae of 

 L. nigriceps, L.decipiens and L. marmoratus (10.6 — 11.6 mm long) 

 55 it is 0.38 — 0.33 mg/hour; the oxygen consumption of a larva of L. bipunc - 

 tatus, 11.6 mm long, is 4.92 mg/hour at 11.2°. 







aesfe> ■■■■■:: W3§&?- ^Mlil 





FIGURES 81-83. Egg masses and young larvae of Nemotaulius punctatolineatus: 



81 _ e gg mass on a reed stalk; 82 - egg masses under high magnification; 83 - eggs with 

 already developed larvae (eyes visible) and hatching of lst-stage larvae. 



50 



