Herbert W. Miles 



173 



Oscinis frit, Linn. 



Pachyrrhina imperialis, Mg, 



Tipula oleracea, L. 



Sciara spp, . . 



Thysanoptera : 



Limothrips cerealum, Hal. 



6. Hemiptera: 



Macrosiphum granarium (Kirb. 



7. Collembola: 



Sminthurus luteus (Lubbock) 

 Orchesella cincta (Linn.) . 



Trisetum flavescena 

 Arrhenatherum avenaceum 

 Agrostis stolonifera 

 Holcus lanatus 

 Lolium perenne 

 L. perenne 

 L. italicum 



Arrhenatherum avenaceum 

 Holcus lanatus 

 Bromus sterilis 

 Lolium italicum 

 Arrhenatherum avenaceum 

 Agrostis stolonifera 

 Poa pratensis 

 Trisetum flavescens 



Dactylis glomerata 

 Holcus lanatus 

 Lolium perenne 



Arrhenatherum avenaceum 



Lolium perenne 

 L. perenne 



Of the insects feeding in winter, we find among the Coleoptera the 

 larvae of the chck beetles. "Wireworms" as defined by Roberts (14) 

 are "The larvae of the genus Agriotes and that of Atlious haemorrhoida- 

 lis." Their distribution is somewhat localised for Ford (7) says that in 

 Cheshire he found the common wireworm as the larva of Agriotes 

 obscurus. A similar state of affairs obtains in Shropshire where Agriotes 

 obscurus predominates, Athous haemorrhoidalis coming second in order 

 of importance. In this district the wireworms were found in greatest 

 numbers on sandy soils having abundance of humic matter in the form 

 of root fibres. Land recently broken up was badly infested and calcu- 

 lations showed in several fields numbers varying from 26,780 to 331,700 

 wireworms per acre, the former case existing after a crop of linseed. The 

 larvae of Athous haemorrlioidalis apparently prefer pastures and meadows 

 to arable land; only two specimens were taken in arable land and then 

 on land which had been broken up in 1918. They were fairly numerous 

 along hedgesides where they attained great size, feeding amongst the 

 roots of grasses and hedge plants. Some difference of opinion still pre- 

 vails as to the mean depth of wireworms in the soil. During the winter 

 careful examination of nine fields, seven of which were arable, showed 

 that the majority of larvae were located from 1 inch to 4 inches below 



