S MR. A. G. BUTLER ON NEW [ Jan. 5; 
13. CH#ROCAMPA GRACILIS, n. sp. (Plate II. fig. 2.) 
Nearly allied to C. eson, about one third smaller; the wings and 
abdomen, as compared with the size of the insect, longer; the primaries 
decidedly less distinctly streaked, the streaks also narrower ; secon- 
daries blacker at base, much whiter at anal angle; lateral streaks of 
thorax much whiter ; abdomen very indistinctly streaked, not showing 
the two broad longitudinal central brown bands; wings below less 
irrorated with brown, central oblique hnes of primaries not extending 
beyond the middle of the wing from costa; abdomen below not 
showing the lateral blackish points. Expanse of wings 3 inches to 3 
inches 2 lines. 
Congo (Richardson), Sierra Leone (Morgan). Type, B.M. 
We have four examples of this species. 
14, CHEZROCAMPA ELEGANS, n. sp. (Plate II. fig. 1.) 
3 @. Allied to the preceding species (with which it agrees 
in size) and to C. theylia. The male may at once be distinguished 
from both by its much more acute and narrow primaries; and both 
sexes may be distinguished by having a distinct, whity brown, lon- 
gitudinal band from the back of the head to the end of the abdomen, 
the pterygodes more brightly coloured, and the anal margin of secon- 
daries less excavated. In size it exceeds C. theylia by about one 
half; and the white nebula at anal angle of secondaries is more vivid ; 
on the underside of primaries the terminal grey border is well marked. 
Expanse of wings, ¢ 2 inches 9 lines, 2 3 inches | line. 
3, Java (Horsfield); 2, Silhet (Stainsforth). Type, B.M. 
Mr. Walker says that “ C. eson in Asia is very generally of small 
size, and in Africa of large size, but the latter variety also occurs in 
Asia,” C. eson and C. gracilis being the large African forms, C. 
elegans the large Asiatic and C. theylia the small Asiatic form. 
15. CH#ROCAMPA ARGENTATA, nu. sp. (Plate II. fig. 3.) 
General form and markings of C. oldenlandia, wings shorter, 
inner margin of primaries much more excavated, all the brown 
markings much darker, the silver lines more vivid, the line down the 
centre of pterygodes and the lateral streaks of abdomen vivid golden 
sprinkled with reddish scales; primaries more silvery at base, the 
pale oblique bar of primaries slightly broader, the outer margin 
somewhat plumbaginous ; secondaries darker, the pale streak redder 
in tint: wings below altogether redder, the markings darker, the 
outer margin more plumbaginous; abdomen with a white ventral 
streak. Expanse of wings 2 inches 10 lines. 
Moreton Bay (Gibbon), N. Australia (Elsey), Sydney (Laméert), 
Australia (Stevenson). Type, B.M 
This is the Australian representative of C. oldenlandie; it is 
undoubtedly a distinct species, but may be an insect described by 
Mr. Walker of which | cannot find the type. A third species also 
exists in North Australia ; but our example is in such a poor condition 
that I could not venture to make a type of it. 
