Young larva. Nielsen (1942:429—432) distinguishes 7 larval stages; 

 their charadcrs are partly given in the following table. 



Length and number of .■^omc .-etae of stages 3-7 of S. p e d e m o n t a n u m (after Nielsen) 





Stage 





1st 



2nd 



3rd 



4th 



5th 



Length, mm 



Setae: 



anterior angle of nie.-^onotum 

 anterior angle of metanotum 

 trochantin 



3.4-4.2 



12-14 



4 



2 

 11-13 



4.3-6.9 



17-18 



7-8 



3-4 

 13-17 



5.5-8,5 



30-4U 

 12-14 



9 

 19-22 



8.0-12.0 



38-49 



16-18 



8-10 



23-27 



11.0-16.2 



55-69 

 25-29 

 13-16 



27-29 



tergite of segment 9 



Pupa. Length 11.5 mm in male pupae, 12.4 — 14.2 mm in fennale pupae. 

 Head (Figure 870, A) of characteristic form; frontoclypeus brown, 

 saddle- shaped, concave in the middle, with a dark tubercle and a smaller 

 tubercle with flat or convex, anterior side at posterior margin; anterior 

 margin of epicranium pale, with a large process, so that anteclypeus and 

 labrum are situated almost horizontally. Anteclypeus covered with small 

 tubercles; labrum semicircular, with small tubercles and long, thin 

 spinules at anterior margin (Figure 870, b). All 3 setae of anteclypeus large, 

 lateral seta usually yellow. Labrum with 5 setae: 2 yellow setae at anterior 

 margin . median seta 1 small, the other 3 setae situated near the middle, all 

 three dark, lateral seta thinner than the others. Mandibles (Figures 870) 

 long, directed anteriorly; distal part narrow, with coarsely serrated median 

 margin; lateral setae situated some distance from basal margin, small, 

 strong, of equal length. 



Number and arrangement of gills of pupa of S.pedemontanum 

 (after Nielsen) 



Segments 



Dorsal 



Pleural 



Ventral 



2 



2-3 

 2 



2 

 1-2 



2-3 

 2 



3 



3 

 2-3 



3 

 3 



3-4 

 2-3 



4 



2 

 1-2 



1 



3 

 3 



5 



1 

 1(0) 



1 



3 

 2-3 



6 





1 



3 

 2 



7 





1 



1-3 



2 



8 







2 

 2(0) 



680 



