MR, A. G. BUTLER ON THE SPHINGID2. 549 
Possibly referable to Panacra, but certainly not to the New-World genus Perigonia; 
I have not seen the type. 
10. PERGESA CASTANEA, 
Pergesa castanea, Moore, P. Z. 8. 1872, p. 567. 
Bombay. Type, coll. F. Moore. 
This is a curious dark little species, with a broad plumbaginous or silky greyish 
border to primaries. 
11. PERGESA VAMPYRUS. 
Sphinx vampyrus, Fabricius, Mant. Ins. ii. p. 98. no. 66 (1787). 
East Indies? 
Evidently a Pergesa with reddish secondaries. 
12. Perarsa acrora. (Plate XCII. fig. 2.) 
Pergesa egrota, Butler, P. Z. S. 1875, p. 246. 
Silhet. Type, coll. F. Moore. 
13. PERGESA AURIFERA. 
Pergesa aurifera, Butler, P. Z.S. 1875, p. 7. no, 11. 
Sikkim (Whitely); North India. Type, BM. 
Mr. Moore has two examples of the brownish variation of this species, labelled “‘ North- 
east Himalayas,” and a third, labelled “ Darjeeling.” 
14. PERGESA FUSIMACULA. 
Pergesa fusimacula, Felder, Reise der Nov., Lep. iv. tab. 76. fig. 4 (1874). 
q 
Allied to the preceding, and to P. castor. 
15. Parcesa Gioriosa. (Plate XCII. fig. 3.) 
Pergesa gloriosa, Butler, P. Z. 8. 1875, p. 246. 
Darjeeling. Type, coll. F. Moore. 
Genus 6. Panacra, Walker. 
Panacra, Walker, Lep. Het. viii. p. 154. gen. 17 (1856). 
1. PANACRA BUSIRIS. 
Panacra busiris, Walker, Lep. Het. viii. p. 158, no. 6 (1856), 
Silhet (Stainsforth, Doubleday). Type, B.M. 
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