green fungus were the adults, and grubs of the last instar. No record 

 was kept of the number of adults, but it exceeded a dozen. Of the 

 grubs reared, a rather astonishingly large number became infected, 

 in the jars and boxes, by this disease. Out of 142 third-instar grubs 

 kept in confinement under observation, there is record of 13 becoming 

 infected by this fungus, which is 9 per cent of the total number, a 

 higher per cent than was noted of the grub of any other May-beetle 

 except Phyllophaga vandinei. 



Summary of Life-cycles and Measurements of May-Beetles and White-Grubs. 



THE SUGAR-CANE ■WHITE-GRUB, Phylloghaga vandinei n. sp. 



THE COMMON WHITE-GRUB, Phyllophaga portoricensis N. sp. 



THE SOUTH COAST WHITE-GRUB, Pfuillophaga guanicanct n. sp. 



THE CITRUS WHITE-GRUB, Phyllophaga citri N. sp. 



168 



