NOTES ON THE SYNONYMY OF NOCTUID MOTHS. 245 



the upper surface as Tj. errans, and the only structural differences 

 that I have been able to discover for the separation of the two 

 genera are represented by the shorter and thicker third joint of 

 the palpi, and a short recurrent vein from the lower radial of the 

 primaries in Speiredonia. 



Speiredonia, Huhn. 

 Spei7'edonia suhstruens, 



Tavia suhstruens, Walker, Lep. Het. xiv. p. 1276, n. 2 (1857). 



Silhet, Dharmsala, Java. Type in Coll. B. M. 



With this species Walker confounded specimens of his Syrnia 

 sparsa (Lep. Het. xiv. p. 1280), a larger and far more variable 

 species, differing constantly in having, on both surfaces, a sub- 

 marginal series of white dots. Although Walker queries the 

 locality of the type, a second example, received from the same 

 collection, is labelled " Silhet " by the donor, 



Speiredonia alix. 

 Speiredonia alix, Guenee, Noct. iii. p. 1294, n. 3 (1852). 

 Syrnia sparsa. Walker, Lep. Het. xiv. p. 1280, n. 8 (1857). 

 Silhet and Andamans. In Coll. B. M. 



The species identified as S. alix by Walker is simply the 

 S. zamis of Stoll. 



Speiredonia zamis. 

 Phalcena zamis, Stoll, Suppl. Cram. p. 162, pi. 36, fig. 11. 

 Speiredonia alix, Walker (not Guenee), Lep. Het. xiv. p. 1294, 



n. 3 (1857). 

 Var. S. retrahens. Walker, I. c, n. 4 (1857). 

 Var. Ommatophora albifascia, Walker, Lep. Het. Suppl. 3, 



p. 947 (1865). 

 Ceylon, Java, Andamans. In Coll. B. M. 



Cyligeamma, Boisd. 

 Cyligramma latona. 

 Phalcena latona, Cramer, Pap. Exot. i. p. 20, pi. 13, fig. b 



(1779). 

 Cyligramma magus, Guerin, Cuv. Eegne Anim. p. 521 (1842). 

 South, West, and East Africa. In Coll. B. M. 



Cyligramma fluctuosa. 

 ? Phalcena fluctuosa, Drury, 111. Ins. Exot. ii. p. 24, pi. 14, 



fig. 1. 

 S'? Cyligramma rudilinea, Walker, Lep. Het. xiv. p. 1311, 



n. 5 (1857). 

 3' Lake Tanganyika ; ? Masai. In Coll. B. M. 

 I think there can be little doubt that Walker's type is a 

 male; his description exactly answers to two males in the 

 Museum collection. 



