XIII 

 CERATOCAMPID^ 



FAMILY, CERATOCAM'piDiE (homed Caterpillars). 



EACLES IMPERIALIS 



GENUS, E'ACLES (iio meaning). 



SPECIES, IMPERIALIS ("imperial"). 



WE had found some of these large, horned cater- 

 pillars in the autumn, and in June of the next 

 summer the moths emerged and mated, and eggs were 

 laid — about two hundred eggs by each female. The 

 moths fly late, and they mated after nine o'clock, 

 probably much later. 



The large yellow eggs were laid singly on the upper 

 side of leaves. They were like drops of honey or clear 

 amber, and grew browner before hatching. The egg- 

 period was thirteen days. 



Eggs of Eacles imperialis had a red line part of the 

 way around the edge of each. As the larva developed, 

 this line became broken, and, on the day before hatch- 

 ing, showed the red dashes to be the dorsal tubercles 

 of the larva. This could be seen without a lens, but a 

 fifteen-diameters glass showed also the seta^ at the top 



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