Vol. XXX l] ENTOMOLOGICAL NEWS 1 39 



or both, but I was not clear whether this was a mere variation of incesta, 

 a dwarfed form of axillena, or something else, so ha\'ing some spare time 

 in the summer of 1919 I tried to settle the matter for myself. 



Upon overhauling what Raleigh material I had both pinned, papered 

 and wet preserved, I found that the dubious specimens had nothing to 

 do with axillena, but were apparently only a variation of incesta, and that 

 basal streaks were seemingly a normal condition of the females but not 

 of the males, and that infuscation of the postcubitals. while not the regular 

 condition in either sex, was not unusual in either males or females in this 

 locality as the following table will show: 

 Wings wholly clear, males 16, females i. 

 Wings with basal streaks onlj-, males none, females 10. 

 Wings without basal streaks but with infuscated postcubitals, males 

 3, females i. 



Wings with both basal streaks and infuscated postcubitals, males i, 

 females 4. 



Dividing the whole lot as to absence or presence of basal streaks, we 

 find them present in 14 females and i male, and absent in 19 males and 2 

 females, showing that this particular variation is mainly a sexual one in 

 Raleigh incesta. 



The basal streaks varied a good deal in different specimens, extending 

 as far as the 7th antecubital in all four wings in one, and in another only 

 as far as the first in the hind wings and the second in the front wings, 

 while others showed every gradation between these. One in which the 

 basal streaks only definitely reached the 6th and 4th antecubitals in the 

 front and hind wings, ^-et had all the postcubitals and all the antecubitals 

 infuscated, altho there were clear spaces between the veins, so that there 

 was an almost continuous stripe from the base of the wing to the stigma. 



From axillena the infuscated incesta can be distinguished by smaller 

 size, hind wing being about 40 mm. or less, while in axillefta it seldom 

 runs less than 43 mm., and by the thorax being dark blue pruinose on both 

 sides and dorsum, while in axillena it is dark blue on dorsum bordered by 

 black below on sides and below that by yellowish in younger, and by 

 dark brown in older specimens. Also the infuscation is brown, not black 

 as in axillena, and is usually more extensive. 



C. S. Brimley, Raleigh, North Carolina. 



The Cornell University Entomological Expedition to South America 



of 1919-20. 



Under the leadership of Professor J. Chester Bradley, the Cornell 

 University Entomological Expedition to South America of 1919-20 is 

 carrying on entom.ological investigation and making collections in various 

 South American countries. 



Dr. Bradley sailed for Brazil early in September last on the steamship 

 Vestris; owing to a fire developing in one of the holds of the steamer, a 



