133 



protected by vision, and the rigidity, togetlier with the general 

 uniformity of the antennae, seems to be the result of desuetude. 

 Clemens' experiment in the excision of the antennae of Platysamia 

 cecropia, points to a different conclusion from that reached by him, 

 viz.: that the antennae are instruments of atmospheric palpation. 

 The power of hovering was hardly lost through anteunal mutila- 

 tion, but suspended through the consequent loss of a heavy percent- 

 age of the perceptive faculties. On occasion I have noticed that the 

 loss of the antennae in the Butterflies has not been attended by an 

 equivalent result. Finally it does not seem reasonable to expect a 

 complete differentiation of the senses in the Articulata. 



Admetovisj n. g. 



Ocelli. Eyes hairy. Front full, closely scaled, exceeded by tlie roughly 

 scaled labial palpi. Antennae shorter in the male, each joint provided with 

 rather stout corneous lateral pectinations, giving off at the extremity a 

 stouter bristle, and more finely bristled beneath ; in the female longer and 

 simple. The tibiae are unarmed ; legs stout and long. The body is long, stout 

 and fusiform, thorax elevated, rather short, crested behind ; abdomen long and 

 stout, exceeding the secondaries by nearly a third of its length. In the female 

 the stout ovipositor is notably extruded. The maxillae are moderately stout. 

 The wings are long, with very straight costal margin of primaries, rather acute 

 apices and oblique, but little rounded, hind margin. 



Apparently the nearest European ally to our genus is Brithys, 

 from which Admetovis differs decidedly in the shape of the wings, 

 the extruded ? ovipositor, the sexual difference in the antennal 

 length, and stouter maxillae. 



Admetovis oxymorus, Grote, Plate 4, fig. 5, $ . 



$ . — Bright gray. Median lines perpendicular, accompanied by paler shades, 

 approximate, irregular, transverse posterior more regularly scalloped. Orbicu- 

 lar rather large, subquadrate, double-ringed, concolorous. Reniform whitish 

 with a brown internal annulus, claviform indistinct. Subterminal space pale, 

 washed with a delicate brown, deepening in color to the strongly expressed 

 subterminal line which is the most prominent feature of the wing. The line 

 appears to arise on the external margin at vein 8 below the apices, whence it 

 runs inwardly, meeting the margin again at the extremity of vein 4 ; here it 

 runs inwardly again, shortly dentate on vein 3, forming a wide scallop and 



