258 



XVII. 



AUGUST 1st. 



Zebra Hawk-moth its resemblance to a Humming-bird. Grey Hawk- 

 moth. Beautiful Noctuae. Eggs and Larvae of Zebra Hawk. Diurnal 

 Insects. Conops. Six-spotted Blue Hawk-moth. Great spangled 

 Fritillary. Camberwell Beauty. Archippus Butterfly. Clouded Sul- 

 phur. Canadian Pearl-fly. Humble-bee Hawk-moth. Scarlet-fly. 

 Sheep Gad-fly. Horse Gad-fly. Humble Bees' Nest. Hay-making. 

 After-grass. Meadow Frog. Bull Frog. Toad. Tree Frog. Jerboa 

 Becomes torpid in Winter. Field Locusts. Rattling Locust. 

 Wasps' Nest. Hair Grass. Virginian Deer its Grace and Beauty 

 Wide Locality Timidity Artifice. 



CHARLES. I have found the blossoms of the Milkweed 

 ( Asdepias) very productive of lepidopterous insects. The 

 large Zebra Hawk-moths have been very numerous : I 

 caught on one evening eight, and on another seven of them, 

 and saw many more. What a very striking resemblance 

 exists between these hawk-moths and the humming-birds ! 

 their straight, arrowy flight, their sudden arrest in front of 

 a flower, the rapid vibration of their wings, the insertion of 

 their long tongue, the glancing of their bright eyes, their 

 loud hum, their jealous alarms, and even the shape of their 

 bodies, and their size, are so exactly a counterpart of the 

 Ruby throat, that at first one is tempted to think it is actually 

 a humming-bird protracting his nectar-seeking excursions 

 into the night. Among these flowers, almost immediately 

 after sunset, we hear a loud humming, and looking to the 



