I 



REVISION OF SPECIES OF THK GKNTS ACiROTIS. 137 



Yet ue.irer, perhaps, to brevipennis is oblnrujistigma, which is ratner 

 well (listiiiffuished by the uniform sordid, smoky cah)r ami the narrow, 

 oblong, concolorous ordinary spots. The orbicular is o[)en superiorly, 

 oblique. The cell around the ordinary spots is black, and there is a 

 black basal dash. The dents on veins 6 and 7 cross the s. t. line. 



Olivnlis is a puzzling species, standing almost midway between 

 2)h(</i(/era and ridhu/sidud. It has the narrow, oblong orbicular of the 

 former and the marked t. p. line of the latter; the somewhat more yel- 

 lowish fuscous secondaries turn the scale of resemblance to ridinffftiana, 

 and the S genitalia conlirm this. The i)ale dents of veins and 7 do 

 jiot cross the s. t. line. 



Ridingsiana differs from the previous species of the series in having 

 the orbicular rounded and complete. The costa is concolorous, the 

 veins only tlecked witii white scales. The dents on veins G and 7 do 

 not cross the s. t. line. 



Flaridens is a large species and is very distinctly marked. The costa 

 is yellow, the median stripe is very distinct, and the ordinary spots are 

 annulate with pale yellow. The pale dents on veins and 7 cross the 

 s. t. line. 



FlavicoUis is like the preceding in general habitus, but differs by the 

 yellow collar, the even and very distinct s. t. line, and the roun«led 

 apices of primaries. The pale dents do not cross the s. t. line on veins 

 (i and 8. 



VerexceUcnH is one of the handsomest of our species, and the best 

 marked of this group. It is very large — sometimes expanding over two 

 inches — the maculation essentially like fiavidcns, but much brighter, 

 suffused with reddish to lilac gray. The apices of primaries are some- 

 what produced, the dents on veins G and 7 do not cross the s. t. line, 

 while on veins 3 and 4 the indentation of the line is not great. It is the 

 only species of the series in which the group character is not promi- 

 nently marked. In tabular form we have the following : 



SYNOPSIS OF SPECIES. 



Secoixlarics wliite, primaries j^ray to yellow. 



Smallest ; ordinary spots and iiR-diaii stripe, clear yellow KF.CULA. 



Larjier ; the yellow ]ialcr, more white. 



Orbicular, open above ; V-sbaped cicatricosa. 



Orbicular, round, complete. 



Collar paler gray or yellow, uo white line crossing thorax quaouidkntata. 



Collar concolorous, a distinct white line crossing thorax behind collar, 



NIVr.II.IXEA. 

 Orbicular oblong. 



Oriliiiary spots fused, orbicular not oltlii|ue, abdomen normal ixskhtan.'^. 



Ordinary spots not fused, orliieular oldiiiue, abdomen short, conic, 



llKEVinCNXIS. 



Secondaries dusky, primaries darker. 



Orbicular narrow, (d)li(iue, open superiorly. 



Ordinary spots concolorous, relieved by black filling of cell : t. i». line obsolete, 



OBLONGISTIG.MA. 



