846 DR. A. G. BUTLER ON LEPLDOPTERA [Nov. 17, 



fringe blackish, tips shining dark vinaceous : body deep chocolate- 

 brown, sprinkled with shining leaden scales ; the posterior edges 

 of the collar and bases of the metathoracic and abdominal tufts 

 somewhat ochreous ; antennae pale sericeous brown. Under surface 

 of wings sericeous pale brown, darker towards costal area, some- 

 what vinaceous, fringes distinctly so ; primaries blackish in the cell 

 and with a glistening internal area : body below glossy vinaceous 

 chocolate-brown, the extremities of leg-joints and the last joint of 

 the palpi somewhat ochraceous. Expanse of wings 82 millim. 

 Deep Bay, Feb. 5th, 1896. 



134. THTRETES PHASMA, sp. n. 



$ . Very close to T. caffra, but easily distinguished from the 

 fact that the hyaline triangular spot in the cell of primaries nils 

 the upper instead of the lower angle ; also the inner edge of the 

 hyaline belt from median vein to apex is not irregular but forms a 

 direct oblique line, the second division from the apex being much 

 elongated backwards ; the brown border of the secondaries is also 

 narrower. Expanse of wings 37 millim. 



Deep Bay, Feb. 18th, 1896. 



" Pale green ova " (R. C.}. 



135. ARGINA OCELLINA. 



Deiopeia ocellina, Walker, Cat. Lep. Het. ii. p. 571 (1854). 



cf $ , Deep Bay, Feb. 27th, 1896. 



" Fairly common, a day-flyer, sits on grass-stalks " (R. C.). 



DICTENUS, gen. nov. 



Allied to Setinochroa, of exactly the same form ; but differing 

 utterly in the character of the antennae, which are solidly bipec- 

 tinated, the pectinations widely separated and emitting short 

 bristles : the primaries with only four branches to the subcostal 

 vein, the fork of the united third and fourth branches being longer 

 than in /Setinochroa and more divergent ; secondaries with the sub- 

 costal furca considerably shorter and the footstalk consequently 

 very much longer than in that genus. 



136. DICTENUS INCONSTANS, sp. n. (Plate XLII. fig. 5.) 



Wings bright ochreous, the primaries with a conspicuous black 

 spot at the end of the cell ; basal half of costal border black ; the 

 remaining half sometimes black, as well as a broader outer border 

 and narrow internal border : body black, collar, pterygodes, and 

 metathorax clothed with ochreous hair ; anal tuft ochreous : wirgs 

 below nearly as above, but the secondaries with a small blackish 

 spot at the end of the cell : body below black ; tibiae and tarsi of 

 middle and hind legs ochreous tipped with black. Expanse of 

 wings 20 millim. 



Kasungu Mountain, 7425 feet alt., Nyika, March 2nd and 5th, 

 1896. 

 [30] 



