species of Heterocera frorii Dutch Neio Guinea. 297 



Underside like the upper. Band on fore wing wider and 

 more clearly defined. 



Head and thorax metallic blue above, blackish brown 

 beneath; abdomen blackish brown and tinged with dark blue 

 above. 



$ similar to ^ . Band on fore wing wider and more 

 sliarplj defined. Basal blue brighter and suffusing the band. 

 Hind wing without the three marginal dots, and below with 

 only a faint dot on the end of vein 7, and costal black not 

 reaching apex. 



Length of fore wing, ^^ $ , 21 mm. 



Types from Angi Lakes, Arfak Mountains, 6000 feet, 

 N. New Guinea: ^ Jan. to Feb. 1914, ? March 1914. A 

 series of 2 c^ c? ^.nd 13 ? ? from same locality, Jan. to 

 March 1914. 



The following three aberrational forms are contained in 

 the series : — 



^ Milionia xantJiica, ab. nigra. 



This form is represented by a single ? , and differs in the 

 complete absence of the band on the fore wing above. Below 

 the band is wider than in the typical $ , but may be much 

 reduced, leading to the following form. 



Milionia xanthica, ab. bipuncta. (PI. XII. fig. 4.) 



The band on the fore wing is here reduced to two ill-defined 

 spots, one between veins 2 and 3 near their base and a larger 

 one below it. These spots are better defined on the underside. 



This specimen shows an increase of black at apex of hind 

 wing, the spot on vein 7 being merged with the costal black. 



Type (a ? ) the only specimen. 



Milionia .vanthica, ab. extensa. (PI. XII. fig. 5.) 



The band on the fore wing is much widened distally and 

 extends to upper margin of cell. Its outer edge is ill-defined, 

 and yellow scales are mixed with the ground-colour almost 

 to outer margin, the yellowish tinge extending to vein 5 ; 

 this is much better defined below. The yellow of the hind 

 wing is more extended on both sides, so that the basal black 

 does not reach beyond middle of cell, and its edge is irregu- 

 larly defined. 



Type (a ? ) the only specimen. 



