124 BULLETIN 38, UNITED STATES NATIONAL MUSEUM. 



Mimallonis is well distinguished by the red brown color of primaries, 

 which is unique in the genus, and suggests ^/fl/mtes of the ^i/yc/zrows 

 group of Garneades. 



The second subgroup is distinguished by having the S antennae 

 shortly bipectinate, the branches ciliate. The fringes of secondaries 

 are unusually long — this character most evident in the S — and the 

 maculation is much more completely noctuiform than in the preceding 

 subgroup. The ordinary spots are well defined and the transverse 

 lines are always evident. Three species may with certainty be referred 

 here. 



Of these fnsca is most aberrant; its large size, the uniform fuscous 

 color, and the simple t. p. line and completely defined ordinary spots 

 serve to at once distinguish it. 



Rileyana is distinguished by the uniform color, the upright t. a. line, 

 the unusually short obtuse primaries, and the very heavy tibial arma- 

 ture, the latter recalling Schviia, while the maculation much resembles 

 that of catennla. 



Orihogonia is remarkable for the neat and complete maculation, and 

 this is the only species in which the claviform is distinct, 



Doltii is a pretty species, with confused maculation, the color being 

 a dark gray in the median and terminal space and fusco-luteous else- 

 where. The orbicular is elongate, at once separating this species from 

 all the preceding. The apices of primaries are also more produced than 

 in any other species of the group. 



The other species, miUeyi and pluralis^ which I have referred here, 

 are known to me only in the 9 sex, so that the reference t© this group 

 is based upon superficial characters aijparentlj' allying them to dollii. 

 1 believe the S will be found to have the clasper peculiar to the group 

 as well as pectinate antennae of this section. 



Milleri is easily distinguished by the dark gray color, white ordinary 

 spots, and two pink longitudinal shades; the one below median vein, 

 the other beyond reniform. The orbicular is bottle shaped, the small 

 end resting on tbe t. a. line. 



riuralis is also unique in coloration. The margin of primaries is 

 gray, the disc luteous, and the cell fuscous. The orbicular is subquad- 

 rate. 



SYNOPSIS OF SPECIES. 



Color uniform; ordinary spots iiulcfiiiite; ^ a ntciuuB serrate. 



Primaries uniform, i)al(^ ash gray; transverse lines obsolete MURAKNULA. 



Primaries tinged with yellow ; transverse lines distinct catenula. 



Primaries luteous, sordid; evenly irrorate with fuscous .atoms; transverse Hues 



punctiform ; form plumj), heavy obksula. 



Primaries paler luteous, irregularly irrorate with hlacic; transverse lines better 



marked and form slight satikns. 



Primaries even, red brown; transverse lines line mimallonis. 



Color less uniform; ordinary spots nornuil ; noctuidous maculation usually distinct; 

 (7 antennas shortly pectinated. 



