CRESSONIA JUGLANDIS 



GENUS, CRESSO'NiA (named for Cresson). 

 SPECIES, JUGLAN'Dis (" of walnut-tree"). 



The eggs of this si:)ecies were sent to us by a friend, 

 and we think that juglandis cannot be common in 

 Massachusetts, because we have found but one cater- 

 pillar and not one moth. It is said to be common and 

 double-brooded near New York, however. 



The eggs were ovoid and pale green. They grew 

 yellow on the seventh day and hatched on the eighth. 

 A second brood the following year had an egg-period 

 of seven days. 



The young caterpillars were pale yellow and rough, 

 with short, rough, yellow caudal horns, and anal props 

 projecting in long points behind, like those of modesta 

 and myops. They ate butternut, and grew rather more 

 than most sphingid larvae in the first stage. 



One brood molted on the fourth day, the other on 

 the third, and they were about half an inch long. 

 The head was triangular, green, with a long point on 

 the apex, and rough with granules. The body was 

 green, roughly granulated, with white subdorsal lines 

 from head to horn. The legs, props, and horn were 

 green, but the horn grew brownish in two days. There 

 were faint yellow obliques, and the anal props were 



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