AXXALS OF SCOTTISH NATURAL HISTORY 



6. Larger 



Syrphida 



7. Smaller 



Syrphidse 



8. Larger 

 Empida; 



9. Mid-tongued 

 Lepidoptera 



DESIRABLE VISITORS continued. 



Spring. Summer. 



P'ew . . . Longest - tongued 

 on the wing ; 

 species varied 



Abundant; species Abundant ; longest- 

 few tongued on the 

 wing ; species 

 varied 



Fairly abundant ; 

 longest - tongued 

 becomes abund- 

 ant 



Fairly'abundant 



Very few 



dill 



Fairly abundant : 

 species varied : 

 largest types'pres- 

 ent 



Autumn. 

 Abundant ; average 



type fairly high : 



species few. 

 Abundant ; species 



few. 



Longest - tongued 

 very abundant 

 species few. 



Not abundant. 



INDIFFERENT VISITORS. 



10. Vespidse . 



11. Tachinida 



12. Muscida 



1 3. Sarcophagida 



14. Anthomyidae . 



15. Short-tongued 



Empida; 



1 6. Tabanida?, etc. 



17. Bibionida 



1 8. Scatophagidre . 



19. Coleoptera 



20. Short-tongued 



Lepidoptera 



21. Small flies 



Few 



Fairly plentiful 



Plentiful 



Absent . 

 Extremely abundant 



Fairly plentiful 



Very few 

 Few 



Fairly plentiful 

 Plentiful 



Absent . 

 Plentiful 



More plentiful 

 Fairly plentiful ; 



largest types on 



the wing 

 Plentiful ; largest 



types on the wing 



Few 



Much less abund- 

 ant, but type 

 heightened 



Fairly plentiful 



Few 



Fairly plentiful 



Less plentiful 

 Abundant 



varied 

 Plentiful 



and 



Few. 



Abundant ; especi- 

 ally in one of the 

 longest-tongued. 



Very abundant ; es- 

 pecially in larger 

 forms. 



Few. 



Abundant ; type 

 high. 



Less plentiful. 



Few. 



Plentiful ; type 



heightened. 

 Abundant. 

 Very abundant, but 



not varied. 

 Absent. 



Very abundant. 



22. Parasitic Few 



Hymenoptera 



23. Tenthredinidre Few 



24. Ants . . Few 



25. Other insects . Few 



INJURIOUS VISITORS. 

 Plentiful 



Very plentiful ; type 



higher. 

 Absent. 

 Plentiful. 

 Abundant. 



TABLE IX. THE NUMBERS AND PERCENTAGES OF DECIDEDLY DESIRABLE. 

 DESIRABLE, AND INDIFFERENT INSECTS ABROAD IN THE SEASONS. 

 (Aris OMITTED). 



Spring 



Summer 



Autumn 



