EXPLANATION OF PLATE XLII. 



Fig. 1. — Ceratomla amynior, stage I, highly magnified. 



Fig. 2. — Ceratomia nmynfor, head aud four trunk segments, stage II, magnified; 2a, end of the stage (14 mm. long); 



'2h, end of the body, showing the caudal horn, and sp, suranal plate; a, anal leg. 

 Fig. 3. — Paonias mi/op.t, caudal horn in last stage; 3a, end of the tip, from above and from the extreme of the tip. 



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