Volume VII DECEMBER, 1920 Nos. 2 and 3 



. OBSERVATIONS ON THE INSECT FAUNA OF 

 PERMANENT PASTURE IN CHESHIRE 



By HUBERT M. MORRIS, M.Sc. 



(Entomological Dept., Institute of Plant Pathology, Rothamsted 

 Experimental Station, Harpenden.) 



(With 1 Text-fig.) 



CONTENTS. 



PAGE 



1. Introduction 141 



2. Description of the District 142 



3. Description of the Field 144 



4. Chemical features of the Area . . . .145 



5. Botanical features of the Area .... 145 



6. Methods of Investigation 146 



7. Insects occurring in the soil of the Area . . 147 



8. Insects associated with the herbage of the Area . 148 



9. Noteworthy species in the Insect Fauna . . 150 



10. Distribution in Depth . .... 152 



11. Discussion of Previous Work 153 



12. Census of Soil Insects 154 



13. Summary 154 



14. References 155 



1. Introduction. 



This investigation was carried out between September 1916 and Sep- 

 tember 1917, with the object of obtaining as much information as possible 

 with regard to the insect fauna of a permanent pasture. The field in 

 which the investigation was carried out was chosen as being as nearly 

 as possible typical of all such fields in the surrounding district, which 

 comprises the central and eastern parts of Cheshire. 



I am indebted to Dr A. D. Imms for assistance in many ways through- 

 out this investigation; to Mr T. J. Young, M.Sc, formerly Principal of 

 the College of Agriculture, Holmes Chapel, Cheshire, for permission to 

 use the field in which it was carried out; and to the following gentlemen 

 for assistance in the identification of many of the insects taken: Mr J. M. 

 Brown, B.Sc; Mr H. Bury, B.A.; Mr J. Collin; Mr G. T. Lyle; the Rev. 

 F. D. Morice, M.A.; Mr C. Morley; the Rev. J. Waterston, B.D., B.Sc. 



Ann. Biol, vu 10 



