MOXOSCUALIS. — ClIALCOSIA. 63 



MONOSCHALIS, g. u. 



Male. Differs from Thijrassia in tlic second subcostal nervulc of the fore wing not being 

 stalked with the third and fourth. Hind M-ing with the first subcostal absent; the second 

 from near the middle of the cell. 



Monoschalis vii-escens. (Plate CLVII. fig. 11.) 



Expanse o \\ inch. 



Male. Very dark shining green. Fore wing with a large transparent spot at end of cell ; 

 one in the interspace below it extending below the first median nervule, with a small spot 

 below it ; a bipid subapical spot on the radial nervule. Hind wing immaculate. Abdomen 

 with a broad vellow baud on the third segment. 



CHALCOSIINjE. 



Heteropau cupreatum. (Plate CLVII. fig. 10.) 



Expanse f inch. 



Male. Fore wing very dark brown, with metallic coppery tints towards the outer margin. 

 Hind wing deep violet-blue as in H. dolens, Druce. Antennje black, with a slight metallic- 

 purple hue ; thorax dark brown ; abdomen violet-blue. The underside paler, except the costal 

 and outer margins of both wings. 



Chalcosia myrrhina. (Plate CLVII. fig. 14.) 



Expanse 1| inch. 



Male. Allied to C. affinis, from which it differs in the third median nervule and lower 

 radial of the fore wing not being stalked, and the veiulet in the cell not forked, and in having a 

 large basal yellowish-white patch covering the whole base of the wing, except a broad coppery- 

 green baud along the costa, joining the postmedian pale band on inner margin, and 

 leaving a bimaculate medial band of coppery green ; the green apical and outer areas are 

 almost uniformly shot with cupreous, and there are only slight traces of the black between the 

 nervules which is so prominent in C. affinis, and, as in that species, there are some indistinct 

 subapical spots. Hind wing as in C. affinis. 



Also in AIus. Oxon. from Ceylon. 



The habitats of the Ceylon forms of Chalosia are : — C. (juadrifasciata , a race of C. thallo, 

 Linn., at sea-level; the mountain form, C. venata, with its Ijroad-bandcd variety similala, at 

 2500 feet, — the females of these three forms being indistinguishable; and C. myrrhina 

 and pretiosa with its var. albina at 4000 to 5000 feet. 



