BLEPTINA. — MESOPLECTEA. 65 



Bleptina aegrota. (Plate LVII. fig. 1.) 



Primaries whity brown, crossed by four equidistant irregularly sinuated whitisii-bordered 

 black lines ; costa greyish ; external area broadly dark grey ; a marginal series of subconfiuent 

 jet-black spots; fringe whitish, traversed by two series of slaty-grey spots; reniform spot out- 

 lined in black : secondaries greyish, growing darker towards the outer margin ; two whitish- 

 bordered irregular black lines from the abdominal margin to the radial vein ; margin and 

 fringe nearly as in primai-ies : body whity brown. Primaries below pale brown : secondaries 

 sordid white ; all the wdugs with black discocellular spots ; a spot in the cell, two irregular 

 macular discal lines, a marginal series of black spots, and fringe spotted as above with grey : 

 body whitish. Expanse of wings 11 lines. 



Yokohama (Jonas) . 



BOCANA, IValker. 



Bocana tristis. (Plate LVII. fig. 2.) 



Slaty grey : primaries much dai'ker than the secondaries ; costal border, apical half of 

 fringe, and some spots on the other half blackish ; two widely separated denticulated black 

 central lines, and a black >-shaped discocellular marking ; a blackish transverse discal streak : 

 secondaries darkest at outer border ; a feeble indication of a blackish submarginal line : body 

 corresponding in colour with the wings. Under surface paler, more uniform in colour : wings 

 with a marginal series of jet-black spots ; two dusky discal lines, the outer one margined 

 externally with white. Expanse of wings 1 inch 4 lines. 



Yokohama [Jonas). 



MESOPLECTRA, g. n. 



Allied to Bocana, but the antennae pectinated on both sides, each pectination terminating 

 in two curved hairs, one longer than the other ; the centre of the antennae slightly swollen 

 and armed with two short incurved spurs ; palpi long and ciu'ved backwards to a point parallel 

 with the back of the head ; anterior tibiae very broad and flattened, but with no pencil of 

 bristles. Type M. Rlacina. 



Mesoplectra Ulacina. (Plate LVII. fig. 3.) 



Primaries lilacine grey ; central belt indicated by two widely separated irregular dentate- 

 sinuate dark brown lines, the outer one bounded internally by a rather wide band of paler 

 brown, upon which (from the discocellulars downwards) is a dark brown denticulated line 

 parallel to the outer line of the central band ; a black >-shaped discocellular marking ; outer 

 border bounded internally by a very irregular zigzag diff'used blackish line ; a marginal series 

 of triangular black spots : secondaries pale smoky brown, with traces of two darker discal 

 lines ; a very slender dark marginal line ; fringe whitish : body corresponding in colour with 



