AMPinCrOXIIDu^. 213 



GESONIA OBEDITALIS. 



Gesonia oheditalis, Walker, Catal. Lep. Het. B. M. xvi. p. 75 (1S58),(J. 

 " Male. Reddish-brown, mostly ciuereous beneatli : forewings witli the interior 

 and exterior lines blackish, denticulated, indistinct; some diffuse oblique undulating 

 cinereous lines ; one extending from the interior line to the base, obsolete in front ; 

 the others beyond the exterior line ; marginal points black ; orbicular spot black, 

 punctiform, reniform forming an oblong ringlet which encloses a black point : hind- 

 wing cinereous, with black marginal points, and with two dark cinereous lines, which 

 are almost obsolete above, but distinct beneath. Palpi dark brown, cinereous above ; 

 abdomen cinereous. 



" Expanse 8 lines." 



GESONIA SCITULA (Plate 174, Fig. 6). 



Thermesia sdtula, Walker, Catal. Lep. Het. B. M. xxxv. p. 1973 (1866), ?. 



Forewing purplish ochreous-red, crossed by an indistinct antemedial, post- 

 medial, and a submarginal blackish-speckled zigzag line ; reniform mark indistinct, 

 blackish; marginal points blackish : hiudwing pinkish-cinereous ; cilia paler. Thorax 

 ochreous-red ; collar, head, palpi, and bands on tarsi brown, abdomen purpli.sh- 

 cinereous ; forelegs reddish, hind legs paler. 



Expanse Jl. inch. 



Family AMPHIGONIID^. 



Wings ample, pulverulent, alike in colour and markings ; exterior margin very 

 angular, often unequally dentate. Body smooth, thorax villose; antennjB various 

 as to structure ; legs stout, very villose in male ; tarsi bare ; palpi abruptly ascending, 

 extending above the head ; securiform or recurved. 



Larva semilooped, with 16 legs, the first two pair of middle legs aborted ; with 

 two small dorsal conical prominences on 12th segment. 



Genus LAGER A. 

 Lacera, Gueneo, Noct. ill. p. 336 (1852); Walker, Catal. Lep. Het. B. M. xv. p. 1537. 



Forewing elongated, triangular, exterior margin obhque, denticulated, angular 

 in the middle ; cell extending to more than half the length; first subcostal emitted 

 at one-half before end of the cell, second at one-fourth, trifid, third at nearly one- 

 fourth from base of second, and fourth at two-thirds from base of third, fifth from 

 end of cell and slightly touching third close to its base ; discocellular concave, bent 

 near the ends, radials from the angles ; middle median from angle close to end of 

 the cell, lower at two-fifths; submedian sHghtly curved: hindwing short, broad, 

 apex convex, exterior margin denticulated, almost angulated in the middle; cell 

 broad, extending one-third the length; two subcostals from end of the cell; disco- 



