422 



Messrs. J. J. Joicey and W. J. Kaye on 



There are no examples showing very short linear streaks, 

 or specimens showing linear spots. As is usually the cas> 

 with Guiana forms of thelxiope, a large percentage shov 

 an imperfectly developed and modified streaking to th» 

 hind-wing, the streaks not being heavily nail-headed bui 

 slender. No less than 107 specimens (of various fore-wing 

 types) show less than the full-width streaking of thelxiope. 

 Of fully streaked examples, as in typical thelxiope, there 

 are no more than twenty-one specimens, and these are to 

 be found chiefly among the actual specimens of thelxiope, 

 though two of the tyche type are about as heavily marked. 



TABLE OF FORMS TOWARDS FULL thelxiope HIND-WING 

 STREAKING IRRESPECTIVE OF FORE-WING PATTERN. 



79 



TABLE OF FORMS TOWARDS A REDUCED (LINEAR) STREAKING. 



See PI. CVIII, figs, la, 2a, 3a. 



107 

 Total 79 + 107 = IS 



Appended are descriptions of four new forms with 

 thelxiope " hind- wing streaking. 



Heliconius melpomene thelxiope ab. punetarius, J. and K., nov. 

 (Plate CVII, fig. 5.) 



Fore -wing like maris, with the base red, and with a rather 

 narrow transverse red band. Within the cell, just beyond the 

 middle, is a large triangular clear yellow blotch having its base 

 attached to the costal vein ; the outer side just touching the trans- 

 verse band, and the inner edge is bordered with heavy black. Hind- 



