7 93. PROCEEDINGS OF THE NATIONAL MUSEUM. 83 
The species is distinct from all the others by its comparatively 
broader, more trigonate primaries, the distinct, prominent basal streak, 
the small ordinary spots, the blotchy white reniform and by the series 
of subtermival black spots in the interspaces. 
Morrisonia evicta Grt. 
1873. Grt., Buff. Bull. 1, 84, Pl. 2, f. 18, Cloantha. 
1874. Grt., Buff. Bull. 1, 16, Actinotia. 
1874. Grt., Buff. Bull. 11,53, Morrisonia. 
Var. vomerina Grt. 
1873. Grt., Buff. Bull. 1, 84, Pl. 2, f. 17, Cloantha. 
1874. Grt., Buff. Bull. 11, 16, Actinotia. 
1874. Grt., Buff. Bull. 11, 53, Morrisonia. 
1879. Grt., Can. Ent. x1, 207, an var.'pr. ? 
1890. Grt., Revised Check List, 24 pr. var. 
Ground colorapowdery bluish gray withanadmixture of brown. Head 
with a brown frontal line. Collar inferiorly pale, margined by a black 
transverse line. Thorax rich reddish brown, patagie with submarginal 
darker line. Primaries strigate, the median lines lost. A white spot 
_at base of the wing. A longitudinal black basal line, surmounted with 
a yellowish shade, to which is attached the indefinite claviform, which 
is traceable as arule to the location of thet. p. line. This line is usually 
indicated by venular dots and sometimes as a white line over the inter- 
nal vein. A distinct brown terminal shade, starting at apex and regu 
larly widening to the anal angle, the inner margin rigidly oblique. This 
brown shade is cut on vein 3 by a white tooth which accompanies if. 
A series of black terminal lunules. Ordinary spots large, fused, dis- 
colorous, more or less contrasting ocherous or even rusty brown, the 
lower defining line black. Secondaries smoky fuscous, with a discal 
spot. Beneath pale, powdery with reddish, with an outer line and discal 
spot on all wings. 
The evicta form is as above described; in the variety vomerina the costal 
region is usually of the ground color or even paler, while all below this is 
blackish or deep dark brown, lightening a little along the inner margin. 
_ Expands 33 to 35 millimetres=1.32 to 1.40 inches. 
HaAsitar: New York; New Jersey to Illinois; Middle and Central 
States. Illinois, April and October; Central New York, May 8 to 17. 
Both forms are equally common in the same localities on the same dates. 
There has not been, in any specimen I have seen, any doubt as to which 
_ of the two forms it should be referred, but the difference in color below 
the costal region is absolutely all that offers, and I adopt Mr. Grote’s 
' suggestion as to their identity, the more readily as the sexual characters 
in the male are absolutely alike. The difference between the forms is 
parallel to that in mucens, where they are not distinguished by name. 
Nine specimens ofsthe two forms are in the National Museum collec- 
tions (collections of C. V. R., J. B. S., and O. Meske). 
