col lee fe I by W. J. Burchell in Brazil *}29 



of course possible that Westwood was referring to the under 

 surface in his label attached to the specimen, but it seems 

 on the whole more probable that " alba " was inadvertently 

 written instead of " flava." There can be no doubt that the 

 words of the label and the list refer to the same specimen, 

 viz. 1298. 



Heliconius ethilla numismaticus, Weym. 



29. 7. 29. = 1299. Para". 



Westwood, in his list, described this specimen as varying 

 from the typical li Hel. Numata" and wrote opposite to it : 

 " Ejusd. [i.e. Heh Numata] var.??: fascia obliqua nigra al. 

 ant. ante fasc. flavam, maculisq. marg. alar. post, subtus 

 flavis nee albis." 



Westwood's description is, as is nearly always the case, 

 absolutely correct, and affords convincing evidence that there 

 has been no accidental transference of dala. This conclusion 

 not only holds for 1299, but for all five silvana-Wke specimens, 

 1298-1300, which Westwood grouped in a manner very 

 different from that here adopted from Stichel. No part of 

 this difference is to be explained by subsequent accidental 

 transposition of Burchell's labels. 



18. 12. 29. = 1300. " in sylvis umbrosis." Para. "Rivu- 

 let above Arsenal." A Westvvood's label reads, " JJel. 

 Numata." 

 Westwood's list agrees : for his description of this specimen 

 see 1296. 



Cohort iii. Melpomkneformes. 



Heliconius melpomene thelxiope, Httbn. 



Bz.+ 2. 20 p. 22. 5. 29. = 1301. Rio Tocantins. Just S. 



of, and the day before reaching, the Itabdca cataract. 

 7. 6. 29. 2= 1302, 1303. On the Rio Tocantins, just above 

 (S.W. of) Paul. " S ta . Anna." 



The large yellow and somewhat constricted spot towards 

 the end of the cell in the fore wing of this subspecies is much 

 reduced and divided at the constriction into two spots in 

 1302, and is altogether absent from 1303. 



Westwood also noted the condition of this feature in 1302 

 and 1303, as is shown by the following description written 

 opposite to their dates in his list : — " Thelxiope var. [1303] 

 var. ult*. prajcedentis [i. e. of the typical ' H. Thelxiope''] 

 mac. in cellula al. ant. obliterata." " Thelxiope var. [1302 J 

 simillima [to 1303] sed macula parva bipartite flava in cellula 



Ann. & Mag. X. Hist. Ser. 8. Vol. v. 23 



