1873.] MR. A. G. BUTLER ON THE GENUS PROTOGONIUS. 775 



spots ; a yellow spot at apex ; underside nearly as in preceding spe- 

 cies. Expanse of wings 3 inches 8 lines. 



Venezuela (Dyson). B.M. 



Mimics Melincea lilis of Doubleday. 



9. P. divisus, n. sp. 



Very like P. bogotanus ; but the apical spots of primaries and the 

 colouring of under surface are quite different ; an elongate oblique 

 trifid patch just beyond end of cell, a large blotch on second median 

 interspace, and four small apical submarginal spots saffron-yellow ; 

 underside very similar to P. cecrops, but primaries without the large 

 subapical white spot, and secondaries with the central band quite 

 different in shape, widening gradually from submedian nervure to 

 first subcostal branch and then suddenly narrower to costa. Expanse 

 of wings 3 inches 6 lines. 



E. Peru (Begand). B.M. 



Most nearly allied to P. quadridentatus ; possibly a mimic of 

 Melincea mcelus of Hewitson, but not a good imitation of it. 



10. P. castaneus, n. sp. (Plate LXIX. fig. 2.) 



Primaries black, with a broad curved castaneous streak running 

 from base to just below first median branch, where it terminates in 

 a diffused subanal yellow spot ; an elougate oblique trifid patch 

 just beyond cell, the central part of costa, a large blotch on second 

 median interspace, and four large apical submarginal spots, only sepa- 

 rated by the nervures (the second much the largest), yellow ; secon- 

 daries dark castaneous, with the outer margin from anal angle to apex 

 dark brown and broad, excepting at apex ; seven submarginal yellow 

 spots reduced to points at apex ; underside very similar to P. hippona, 

 but central band as in preceding species. Expanse of wings 3 inches 

 5 lines. 



Ega {Bates). B.M. 



Mimics Tithorea egaensis, Butler ; it is most nearly allied to the 

 preceding species. 



11. P. albinotatus, n. sp. (Plate LXIX. fig. 4.) 



Primaries above as in P. tithoreides, excepting that all the spots 

 of apical half are white, and that there are six submarginal spots ; 

 secondaries as in P. quadridentatus ; underside as in P. tithoreides. 

 Expanse of wings 3 inches 5 lines. 



Bogota (Janson). B.M. 



Mimics Melincea messatis of Hewitson, and is not an uncommon 

 insect in collections. Although very closely allied to P. tithoreides, 

 I believe it to be distinct, from the fact of its mimicking a species of 

 Melincea ; whilst P. tithoreides mimics a Tithorea. It is not very 

 likely that the same species would produce imitations of two distinct 

 genera, although from the small amount of change required (chiefly 

 one of colour) I should think it not impossible. 



