AMBIA.— DITOMOPTERA. 179 



near the outer angle, not curved round and joined to a large patch near the inner margin, 

 this patch being almost completely wanting. Hind wing with the postmcdial band obso- 

 lescent, narrow, and suffused with black ; the subinargiual band narrow. Cilia black below 

 the apex of hind wing and at middle of outer margin and apex of fore wing. 



Ambia coeruleata. (Plate CLXXIV. fig. 29.) 



Expanse -^^ inch. 



Female black. Fore wing hardly excised below the apex ; an antcmedial line of metallic- 

 blue scales ; a white spot at end of cell with a few metallic-blue scales round it ; some sub- 

 marginal patches of metallic-blue scales ; cilia fuscous, white below the apex and above outer 

 angle. Hind wing with the excisions strongly marked ; indistinct subbasal and postmedial 

 pale lines ; some small submarginal patches of metallic-blue scales. Cilia white at the 

 excisions below apex and above anal angle. 



DITOMOPTERA, g. n. 



Male. Antennse simple and anuulated. Palpi with the second joint long, porrect, and 

 thickly clothed with scales, the third joint short and depressed. Fore wing with a deep 

 incision in the outer margin between the subcostals and the upper radial, and a slighter 

 incision between the first median and submediau; first subcostal anastomosing with the 

 costal, the second given off from just before the end of the cell, the third from the end, the 

 fourth wanting, the fifth from below the end ; upper radial from the middle of the disco- 

 cellulars ; the lower radial and two medians from close to the end of cell ; the first median 

 from below the end ; a submedian nervure. Hind wing with a deep incision in the outer 

 margin between the median and submedian nervures ; the cell very oblique ; the subcostals 

 from the upper end of the cell, which is very short ; the first subcostal anastomosing strongly 

 with the costal ; radial from the middle of the discocellulars ; the three medians from near 

 the lower angle of cell ; three internal nervures. Cilia of both wings very long. 



Ditomoptera minutalis. (Plate CLXXIV. fig. 31.) 



Expanse ^., inch. 



Male ochreous. Fore wing wholly sufi'used with brown, except the apex, which bears a 

 white longitudinal streak; subbasal and antemedial very indistinct dark lines; an indistinct 

 line from the lower angle of the cell, curving up to the costa, then descending to near the 

 outer angle and forming a ?-sliaped mark; a dark marginal line and two dark lines through 

 the cilia. Hind wing pale fuscous, with marginal and cilial lines as ou fore wing. 



Female. Fore wing with scarcely any brown suffusion and the markings more distinct; 

 the hind wing paler. 



