98 



MR. C, J. C. POOL ON THE 



those of the lion and the lamb, has been solved in the Insect 

 House by using tlie banana. 



The following list of beetles and their ordinary foods, from 

 which, under natural conditions, some of these insects are rarely, 

 if ever, found very far distant, will form an interesting record of 

 species which during the years 1915-1916 have been found to 

 thrive partly or wholly upon this fruit : — 



"Voracious ground-beetles. 



Carahus violaceiis. 



, , nemorcdis. 



,, glahrat'us. 



,, aurratus. 



,, catenulatus . 



Calosoma mqtiisitor. 



PterosticMis vulgaris. 



,, ater. 



,, 7nadidus. 



Harpalus rujicorn is . 



Aquatic species. 



Hydi'ophilus jnceus. 



Wood-boring species. 



Dorc'us parallelopipedus. 

 Saperda carcharias. 



Clyttis imjsticus. 



,, arietis. 

 Aromia iiioschata, 

 • Hylobhis abietis. 

 Hyleslnus crenatus. 

 Scolytus destructor. 

 ,, tntricatus, 

 Elater pomojue. 



Dung-feeding species. 



Geotrupes spinujer, 



,, stercor arias. 

 ,, syh^aficus. 

 ,, typha-us. 



Plant-feeding species. 



Chrysoviela fastuosa. . 

 „ (jramnis. 



,, hyperici. 



Ordinary Food. 

 Usually other insects. 



General scavenger, vegetable or animal 

 matter. 



Moist rotten wood (comes to sugar). 

 Foliage and bark of young stems of 



poplar. 

 Hawthorn blossom. 



•' " . 



Flowers ; sap and foliage of willow. 



Fir bark. 



Ash bark. 



Elm bark. 



Oak bark. 



Flowers in summer (larva, in decayed 



beech). 



Horse-dung or decayed fungi, 

 liabbit-dung-. 



Leaves of sallow. 



Leaves of sallow and wild mint. 



Leaves and flowers of hypericum. 



