602 ME. A. a. BUTLER ON THE SPHINGID^. 



6. ISOGNATHUS LEACHII. 



Sphinx leachii, Swainson, Zool. 111. 2nd ser. vol. iii. pi. 150 (1823). 

 Isognathus leachii, Felder, Wien. ent. Mon. vi. p. 187 (1862). 



? 



The primaries and body of this species are like my I. fumosa, but the secondaries 

 like /. laura. 



7. Isognathus metascyron. (Plate XCIV. fig. 7.) 

 Isognathus metascyron, Butler, P. Z. S. 1875, p. 258, no. 51. 



Villa Nova (Bates). Type, B.M. 



8. Isognathus scyron. 



Sphinx scyron, Cramer, Pap. Exot. iv. p. 23, pi. 301. fig. E (1782) . 

 Erinnyis scyron, Hiibner, Verz. bek. Schmett. p. 139. no. 1491 (1816). 



Surinam. 



Not in the collection of the British Museum ; the species most nearly allied to it was 

 placed with Anceryx alope, and four other distinct species represent Anceryx scyron, in 

 Mr. Walker's catalogue. 



9. Isognathus swainsonii. 



Isognathus swainsonii, Felder, Wien. ent. Mon. vi. p. 187 (1862). 

 Rio Negro. 

 Very nearly allied to /. scyron. 



Genus 5. Cautethia, Grote. 

 Cautethia, Grote, Lye. Nat. Hist. New York, viii. p. 202 (1867). 



1. Cautethia noctuiformis. 



(Enosanda noctuiformis, Walker, Lep. Het. viii. p. 232. no. 1 (1856). 



Cautethia noctuiformis, Grote, Proc. Ent. Soc. Phil. v. p. 168. no. 116 (1865) ; Herrich-Schiiffer, 

 Samml. auss. Schmett. ii. fig. 552 (1869) . 



Haiti (Tweedie). Type, B.M. 



I think that (Enosandra of Newman is too close to (Enosanda for both names to be 

 retained. 



2. Cautethia chinensis. 



(Enosanda chinensis, Schaufuss, Nunquam Otiosus, i. p. 23 (1870). 

 " East India." 

 " Distinguished from (E. noctuiformis by its narrower body, altogether more grey-brown 



