MTt. A. G. BUTLER ON THE SPHINGID^E. 581 



12. AUBVhYXl CONSTEIGILIS. 



Ambulyx constrigilis, Walker, Characters of Lepidoptera Heterocera from Congo, p. 4. iio. 2 (1869) . 

 Congo. 

 Judging from the description alone, I rather doubt this being a true Ambulyx. 



13. Ambulyx canescens. 



Basiana ? canescens, Walker, Lep. Het., Suppl. i. p. 38 (1864) . 

 Cambodia. 



Unquestionably an Ambulyx, apparently allied to A. liturata, but without the dark 

 spots at base of primaries. 



14. Ambulyx tigrina. 



Ambulyx tigrina, Felder, Raise der Nov., Lep. iv. tab. Ixxvii. fig. 4 (Nov. 1874) . 

 ? 



Allied to A. gannascus, but with the hind wings golden yeUow. It comes in well 

 between the A. strigilis and A. gannascus groups. 



15. Ambulyx gannascus. 



Sphinx gannascus, Stoll, Pap. Exot. p. 157. no. 3, pi. 35. figs. 3, 36 (1791). 

 Ambulyx gannascus, Burmeister, Sph. Bras., Abhandl. naturf. Gesellsch. Halle, p. 72 (1855). 

 Amblypterus ganascus (sic), Hiibner, Verz. bek. Schmett. p. 133. no. 1429 (1816). 

 Ambulyx gnnascus (sic). Walker, Lep. Het. viii. p. 121. no. 2 (1856). 



Jamaica (Gosse). B.M. 



16. Ambulyx kostkalis. 



Ambulyx rostralis, Boisduval, Lep. Guat. p. 68 (1873) ; Pelder, Reise der Nov., Lep. iv. tab. Ixxvii. 

 fig. 6 (Nov. 1874). 



Amazons (Sates); Brazil (Stevens), B.M. 



According to Boisduval, from Nicaragua and New Granada. 



17. Ambulyx maeginata. 



Ambulyx marginata, Butler, P. Z. S. 1875, p. 10. 



Eio Janeiro (Stevens). Type, B.M. 



18. Ambulyx eueysthenes. 



Ambulyx eurysthenes, Felder, Beise der Nov., Lep. iv. tab. Ixxvii. fig. 5 (Nov. 1874) . 



AUied to the preceding species. 



