on the upper surface of the fore-wing. The one we think may- 

 be stresemanni (with the diverse $ forms) is like its ally D. 

 rothschildi in New Guinea, found as low as 3000 ft. In com- 

 parison with New Guinea it is extraordinary that we have so 

 far only found two species confined to the higher altitudes 

 (perhaps echidna is not found at the coast, but it is no great 

 rarity at 3000 ft.). We think there must be more species; 

 in fact, we have seen one which seems to belong to the praiti 

 and castaneus group, but it is larger. Therefore we hope to 

 make a camp near the top of Mount Moerkele, which is the 

 highest mountain in Ceram. It is between 8000 and 9000 ft. 

 The top is nothing but stone and rock. 



Thus in summing up : — 



Delias dorimeue, duris, caeneus and isse are found at the 

 coast and in the mountains at 6000 ft. 



The two new ones are found above 5000 ft. 



D. stresemanni above 3000 ft. 



With regard to Ornithoptera procus, the insect seems to be 

 very rare, but is most easily obtained in the open country at 

 the foot of Mount Moerkele at 2500 ft. It is obviously not 

 a coast insect, but is a fairly low form corresponding to the 

 true goliath, titan, suprenms and samson forms in New Guinea. 

 This is not the case with joiceyi, which is apparently only 

 found in the steaming valleys surrounding the higher ranges, 

 and we think it doubtful if it descends below 4000 ft. 

 The limit of 0. rothschildi is probably more 5000 or even 6000 

 ft. perhaps. With procus it is interesting to note that the male 

 bears a delicate perfume which is hard to define. It is not 

 like any particular flower, yet is distinctly pleasant to the 

 human sense. Perhaps the best way to describe it is as the 

 scent emanating from a hot-house of living plants. This char- 

 acteristic is perhaps not peculiar to procus, but we have never 

 noticed it before in any others. Perhaps it has been over- 

 looked, as the scent is only perceptible on placing the wings 

 to the nostrils. There is no smell noticeable in jxriamus and 

 helena. 



Evidence that the viola, Butl., $ r. mim. of Ciiaraxes 



ETHEOCLES, Cr., FLIES WITH ITS MODEL C. EPIJASIUS, ReICIIE. 



Prof. PouLTON said that at the meeting of last December 



