74 ENTOMOLOGISK TIDSKRIFT IOII. 
Metamorphosis. 
The eggs are white, oval, 0,675 mm. long and 0,315 mm. 
wide, , Ihe 12} “instar, \ Fic (0) 1s r mm lone sand 08e 
mm. wide, tapering gradually backwards from the prothorax. 
The intersegmental constrictions are very small and the seg- 
ments not arched, but flat. 
The cuticle is not clothed with cuticular spinulæ as in 
the last instar, but, as a compensation, there are on the 
I—VII abdominal segments, a little behind and above the 
I 2a 2b 3 
Fig. 1. ıst instar, dorsal view 30XI. 
Fig. 2a,2nd > » »: 301. Fig. 2b: 2nd instar, side view 30X 1. 
NE SRE » : 30X1I- 
stigmata, one pair of larger, conical bristles, pointing obli- 
quely backwards, which obviously serve for locomotorial pur- 
poses. 
Only the posterior edge of the head capsule is covered 
by the anterior edge of the prothorax. The mouth parts do 
not differ from those of the last instar. No tergal or sternal 
plates developed on prothorax. 
2nd instar (2a, b.) attaining a length of 1,7 mm. and a 
width of 0,4 mm. The body tapers much more slowly back- 
wards than in the 1$t instar, and the abdominal segments 
I—V are of equal width. The intersegmental constrictions 
