CALLIDULA. 185 



by the older authors. Later writers have regarded them as 

 Castniidce, Agaristida, Lithosiidce, or as forming a Family allied 

 to the Hypsida, but Sir George Hampson places them between 

 the ffepialida and the Drepanulida, with which latter Family 

 he believes them to have some affinity. The Family has 

 recently been monographed and well illustrated by Dr. Pagen- 

 stecher of Wiesbaden. 



GENUS CALLIDULA. 



Callidula, Hiibner, Verz. bek. Schmett p. 66 (1816?); 



Pagenstecher, Jahrb. Nassau. Ver. xl. p. 229 (1887). 

 Datanga, Moore, Descr. Ind. Lep. Atkinson, p. 21 (1879); 



Pagenstecher, Jahrb. Nassau. Ver. xl. p. 235 (1887). 

 The genus Callidula includes a number of the smallei 

 species of the Family, expanding an inch or a little over, with 

 the fore-wings hardly longer than the hind-wings, the costa 

 strongly arched at the base, and the tip and hind margin 

 nearly rectangular; the hind margin is slightly convex, and 

 the hind-wings are rounded, and hardly longer than broad. 

 The wings are brown above, with an oblique yellow band 

 on the fore-wings. 



CALLIDULA PETAVIA. 

 (Plate LXXXIX. Fig. 3.) 



Papilio pttaviuS) Cramer, Pap. Exot.iv. pi. 365, figs. C, 0(1782). 

 Polyommatus petavius, Godart, Encycl. Meth. ix. p. 676 



(1823). 



Callidula petavia, Pagenstecher, Jahrb. Nassau. Ver. xl. p. 

 230, pi. 3, figs. 3-6 (neuration) (1887). 



There are several closely-allied forms found in the Eastern 

 Islands, differing chiefly in the form and colour of the trans- 

 verse band on the fore-wings, and in the mottling of the 



