NOVITATES ZOOLOGICAB XXIII. 1916. 313 



Caligo prometheus epimetheus Feld. 

 (PI. V. f. 2) 



Larva dark grey-brown, similar to the last in shape, with three or four 

 lighter maroon-pink angular bands on markings, and a median pale line on first 

 three segments and along the sides on a level with the spiracles ; head with eight 

 horns and four black-brown bands ; tail-forks large, whole larva covered densely 

 with short hairs, five rather long fleshy tubercles on dorsum. 



Length of full-grown ? larva : 130 mm. = 5-2 in. 



Food plant : banana. 



Rio Aqua, W. Colombia, 1600-1800 m. 



Figured and described from a larva sent by A. H. Fassl. 



Caligo eurylochus Cram, and Caligo brasiliensis Feld. 



Both Herr Stichel and Herr Fruhstorfer unite these forms with seven others 

 as subspecies of eurylochus Cram. In the course of arranging the Caligos in the 

 Tring Museum I was first struck by the much finer vermiculation and pattern 

 below of eurylochus, livius, and pallidus, as opposed to brasiliensis, sulanus, galba, 

 morpheus, caesia, and minor. On separating out my series of each, I at once found 

 that I had specimens of morpheus and livius from Central Colombia, galba and 

 an unnamed form from Sta Marta, caesia and an unnamed form near eurylochus 

 from Venezuela. This proves that eurylochus Cram, and brasiliensis Feld, are two 

 distinct species, each with a series of subspecies. I give below a synoptical table. 



Owing to Herr Stichel having wrongly identified Mr. Kaye's eurijlochus minor 

 with his teucer insulanus, Fruhstorfer was led to redescribe the Trinidad form of 

 brasiliensis as eurijlochus phryasus, which becomes a pure synonym, and the 

 Trinidad insect must stand as brasiliensis minor Kaye. 



Caligo eurylochus eurylochus Cram., Guianas. 



Caligo eurylochus livius Stand., Central Colombia to S. Peru. 



Caligo eurylochus pallidus Frühst., Bolivia. 



Caligo brasiliensis brasiliensis Feld., Espiritu Santo to North Argentina. 



Caligo brasiliensis sulanus Frühst., Central America. 



Caligo brasiliensis galba Deyr., North Colombia. 



Caligo brasiliensis morpheus Stich., Central Colombia. 



Caligo brasiliensis caesia Stich., Venezuela. 



Caligo brasiliensis minor Kaye, Trinidad. 



Caligo brasiliensis brasiliensis Feld. 

 (PI. V. f. 9 larva, f. 10 pupa) 



Larva very large, cylindrical, tapering both ways, and flattened on the back, 

 dirty grey-yellow, with darker spotted dorsal line and irregular black lateral oblique 

 stripes sloping down posteriorly ; bead with eight horns dirty white, with black 

 lines ; on fifth to eighth segments are soft conical protuberances about 4 mm. long ; 

 tail-forks 9 mm. long. 



Pupa yellowish wood-brown, with black and red-brown streaks and short black 

 bristles. When first hatched the larva is dirty white, changing rapidly to green, 

 with a forked dorsal dark band, which colour it retains till third moult, 



