12 Mr. E. G. Joseph on the Uhopahcera 



surface and tlie smaller inner marginal spot immediately 

 above it, recognized by Staudinger as ciiaracteristic of the 

 anteas form of thah'a, will be referred to below as the " upper 

 and lower inner marginal spots " respectively. Their 

 presence, however faintly indicated, will be noted in each 

 specimen under the corresponding number, and it will bo seen 

 that Staudinger was quite correct in maintaining that tin's 

 character is not of specific value. It will be found that the 

 Burchell series presents every gradation between a condition 

 in which the two spots are distinct to that in which a few 

 scattered scales mark the site of the lower spot. The latter 

 specimens, of course, are transitional into those that show no 

 visible trace of the marking. 



Another very variable character is the somewhat irregular, 

 generally narrow, and rectangularly bent fuscous band crossing 

 the under surface of the hind wing a little beyond the cell. 

 In its most typical form this band originates from about the 

 centre of the costa, and runs obliquely towards the apex of 

 the cell, but does not enter it : opposite the apex it turns 

 abruptly at right angles towards the inner margin and termi- 

 nates at the radial streak between the second and tirst median 

 nervules. Tlie distal ends of the internervular rays nearest 

 the costal margin are sometimes much thickened, producing 

 the appearance of a second, much broader band, which often 

 fuses with the above-mentioned rectangulated band, forming 

 a broad, irregular, and ill-defined fuscous patch. Every 

 gradation exists between such a widespread marking and a 

 band that is narrow, well-defined, and sharply bent. The 

 rectangulated band is sometimes reproduced, to a variable 

 extent, upon the upper surface of the hind wing, giving; to 

 the most strongly marked individuals, viz. 1462 and 1463, 

 a peUenea-Wke aspect : the extent to which it is developed 

 will be noted in all specimens that possess it ; and it will 

 be seen that the Burchell material exhibits every inter- 

 mediate grade between a well-defined broadish band and a 

 mere thickening at the distal ends of a few of the inter- 

 nervular rays. 



Both inner marginal spots of the fore wing are distinct in 

 this specimen, the lower, as usual, being considerably larger 

 than the upper. The rectangulated band on the upper 

 surface of the hind wing is very faintly indicated. 

 Bz. 360. I. [15. 10. 25.] S = 1445. Minas Geraes. Fap- 

 [ilwl (As 1358.) 



Opposite '' 360'' Burchell wrote " (326)," thus indicating 



