a collection of Heliconine forms from French Guiana. 427 



imposed spot within the cell. Four specimens show white 

 scaling in the subapical patch, as well as in the cell. Four- 

 teen show a yellowish or whitish yellow overscaling, but 

 complete transition between the andremona colour and the 

 erato (= vesta) colour is only found in one specimen. In 

 this the whole of the red colouring of the fore-wing is 

 orange-red instead of rosy-red, while the andremona dis- 

 coidal group of spots is heavily overlaid with the erato 

 yellow colour. This form we propose to name protea, 

 nov. ab. 



From protect, to erato there is still a somewhat large 

 jump, but two specimens exhibit a curious retention of 

 a large red spot obliquely lying within the yellow blotch 

 at the end of the cell. In one of these specimens there is 

 in addition a curious red streak lying immediately under 

 the median vein between veins 2 and 3. There are fifty-one 

 thoroughly typical erato (= vesta) ; two specimens have 

 a slight suffusion over the yellow spotting, and three show 

 a transition to the form leda, Stgr. Of this latter form 

 there are twenty specimens showing very little variation 

 inter se. The next stage is to oberthiiri, and of this striking- 

 form there are four specimens, one of which shows traces 

 of a red patch just inside the cell, as was remarked on with 

 a specimen of erato. There are six specimens of an un- 

 described form, which might be called the opposite of 

 oberthiiri. This form retains the outer subapical portion 

 of the group of yellow spots, while the inner portion is 

 suppressed. This form we call hemicycla, ab. nov. As a 

 collateral development out of erato there is a form which is 

 somewhat parallel to eulalia, Stgr., of melpomene. In this 

 new form the yellow spots of the fore-wing are much more 

 closed up than in typical erato, so that there are only com- 

 paratively narrow bars of black separating the yellow 

 spots between veins 2—3, 3-4, and 4-5. This form we call 

 constricta, ab. nov. The specimen we make the type is 

 unique, but five other examples approach the type, and 

 can easily be separated from typical erato by an obvious 

 closing up of the spots. 



In concluding our notes on erato it seems curious that 

 the form amalfreda (an erato without hind-wing streaks) 

 or other similar forms, should not have occurred, neither 

 any intermediate half-streaked forms of erato, seeing that 

 erato forms including oberthiiri, hemicycla and conslricta 

 are collectively so numerous. The home of such forms as 



