AMERICAN LEPIDOPTERA. 55 



SYNOPSIS OF THE SPECIES. 



1. Front of the head proriuced into a long: process witli a flat, chisel-like tip. 



Tornacoiitia 2. 

 Front conically protuberant to a round, small, truncated tip, which is rough 



and bare Conacontia 3. 



Front flat, convex, inflated or protuberant, smooth or rough ; variations being 



found in the same species Acontia 4. 



2. Primaries white or creamy to middle, where the lower dark half is squarely 



cut off from the paler costal region NUtrix. 



Primaries all gray; orbicular a punctiform black spot; reniform large, round, 

 blackish, white ringed, prominent niegocula. 



3. Costal region of primaries broadly yellowish to the s. t. line, usually unbroken ; 



secondaries with a yellowish tint (laviCOMta. 



Costal region of primaries narrowly white, usually interrujited by dark bars: 

 secondaries gray angustipcnnis. 



4. Primaries mainly reddish brown in tinge, whitish only at base and along costa, 



an inwardly oblique brown band forming the t. a. line. 



terininiiiiaciilata. 

 Primaries ranging from white to black and white spotted, without red or red- 

 brown marks or bands: usually white, with gray, yellowish or black- 

 ish shadings 5. 



5. Abdomen dark or blackish, conspicuously ringed with white or yellow 6. 



Abdomen concolorous with secondaries, never obviously ringed or banded- .8. 



6. Primaries moderately elongate, trigonate ; secondaries yellow, with an incom- 



plete outer smoky band ; primaries with a broad dark bar from basal 



fourth of costa diagonally across the disc (lelerta. 



Primaries short and broad, outer and inner margin almost equal in length ; 

 primaries without the discal bar 7. 



7. Secondaries blackish, disc and fringes tawney ; primaries mostly black or gray, 



with large quadrate, white costal spots flavipeiiiiis. 



Secondaries blackish, disc and fringes whitish ; primaries in general as before 



but with much more white abdoiiiiiialis. 



S. Head and thorax chocolate brown ; primaries with a chocolate brown patch at 



base lactipeuiiiM. 



Head and collar white or yellowish, thorax else gray or brown 9. 



Head and thorax all gray, a little mottled 10. 



Head white, disk of thorax gray 11. 



Head gray or black, thorax white 12. 



Head and thorax all white or creamy 13. 



9. Secondaries and abdomen yellow ; size large ; dark markings of primaries con- 

 tinuous along inner margin, broken between the median space and 



apex major. 



Secondaries and abdomen with a faint yellow tinge; size small ; dark mai-k- 

 ings of primaries continuous from base to apex, leaving the costa 



white expolita. 



Secondaries and abdomen whitish ; dark markings of primaries continuous 



along inner margin and to apes : costal white region broken by two 



broad bands, which are usually incomplete ; larger. . . -lanceolata. 



Secondaries smoky outwardly ; primaries mottled, median space white to the 



inner margin gonella. 



TR.\NS. AM. ENT. SOC, XXVII. SEPTEMBER, 1900. 



