PLATE XLII. 



Fig. 1. Megiicliile ligniseo.i, Eirh., <S 

 2. ,, aigeul:if;i, Fad., $ 



o. Osmia rufa, Linn., ^ 



4. „ „ '? 



5. „ pilicoruis, /S/ -., c? 



6. „ „ 9 



7. Meg-achile ligiiiseca, Kirb., J armature. 



y. ,, ,, (J 6tb veutral segment. 



8(7. „ ,, hairs of disc much enlarged. 



9. ,, ceatuacalm- IS, Li?i II., (S armature. 



10. „ „ 6 6th ventral segment. 

 10a. „ ,, hairs of disc much enhirged. 



11. „ argeutata, Fab., c? armature. 



12. „ „ S 6th ventral segment. 

 12(7. ,, ,, hairs of disc much enlarged. 



13. Osmia rufa, iinw , (^ armature. 



14. „ pilicoruis, Si/i., S araiature. 



