XCIX 



from below. The problem was solved immediately as it was 

 at once plain that the upperside colouring showed through 

 the underside. 



" Of the other two Nymphalines Eresia euriice and Eresia 

 canne, the former, flying with Ithomia iphianassa and Ceraiinia 

 eudea, was entirely unsuspected of its identity till in the net ; 

 while E. carme $ was suspected of being a Eueides vibilia $. 

 It is curious there is nearly always an Eresia or two present 

 in these mimetic associations, but they are usually very 

 imperfectly protected as the resemblance is more often only 

 of a general nature. 



" The Pierines protected in the association consisted of two 

 Dismoiphia and a Perrhybris. The mimicry of the $ Dismorphia 

 amphione astynomides to Mechanitis polymnia doryssus was 

 of the closest. Of nine specimens of the Dismorphia taken, 

 only one was a male while eight were females. The male is 

 not nearly so good a mimic as the female, as besides a 

 slightly different colour its shape does not harmonise with the 

 narrow-winged Mechanitis. In every case D. astynomides was 

 taken amongst Mechanitis. I well remember a bank where 

 Mechanitis doryssus was flying and where nothing else was 

 detected but four female Dismorphia astynomides flying amongst 

 them. The single Dismorphia theucharila $ was noticed at 

 once as being something fresh. It was flying slowly alone, but 

 close to where Ceraiinia euclea had been observed and taken. 

 Perrhybris malenka was only secured in the male sex. Two 

 females were also seen, but as has been observed by Bates and 

 others their fondness for the underwood prevented captures 

 being made. Both sexes, however, come freely out in the 

 open to Christmas Bush {Eupatorium odoratiim) as I found in 

 Trinidad, but the attractiveness of the plant at Esteban was 

 passing. Both the males were taken off this plant, however. Off 

 another Eupatorium bush some distance away three Pericopis 

 angulosa were observed and taken at dift'erent times. These 

 Hypsid moths were all sitting with wings erect over the back 

 in true butterfly fashion. The general resemblance to a 

 Heliconius species when in this position is striking. No 

 other species of any kind was ever seen sitting with these 

 P. angulosa. Half a mile away a second species of Pericopis 



