130 
MEMOIES OF THE FTATIONAL ACADEMY OF SCIENCES. 
Arkansas (PaliiH); normal form, St. ^Martins Falls, Albany Kiver, TTiulsoii Bay (Dr. Barnstom 
fide Walker); Brmiswiek, 3Ie. (Packard); Franconia, X. H. (Slosson); Boston, Mass.; Pongli- 
keepsie, X. Y. (Dyar); Dublin, X. H. (Leonard, Harris coll.); Plattsburg, X". Y. (Hudson); 
Illinois, Manhattan, Jvans. (Popenoe); Colorado, a $ about halfway between the normal form 
and (Pack, coll.); Yo Semite, Cal.; Portland, Oreg.; Seattle, Wash.; Victoria, British 
Columbia; Denver, Colo., May 2. Tiie AYesteru form incarcerata {ornaia)^ Kansas (Bruner); 
Colorado (Pack. coll.). California (Morrison), in hue and size exactly like one from Trnckee 
A^alley (Mr. Glasham); a very small pale 2 from Keno, Xev. (Pack, coll.); a rather large one 
from Olympia, AYash. (T. Kincaid); Seattle, AYash. (Dyar); indentata^ Kittery, Ale; ATew 
Hampshire; vaii^ Maine, Xew York; ornutitj California; bifiria^ Soda Springs, Colo. (French);, 
var. oniata, Fort Collins, Colo. (Baker). 
Ichthyura iiiornata Xeumoegeu. 
(PI. Ill, figs. 9-11.) 
Ichthyura inornaia Xenm., Papilio, ii, p. 131, Oct. 7, 1882. 
Pack., Kut. News, iv, i>. 78, JIarcb, 1893. 
Nenm. and Dyar, Can. Ent., xxv, p. 123, May, 1893. 
Mclalox)ha inornaia Xoiun. and D"^ar, Trans. Amer. Eut. Soc., xxi, p. 192, 1894; Joiim. N. Y. Ent. Soc., ii, p. 115,. 
18f»4. 
Apparently, although at first sight this is a distinct species, it may prove to intergrade with 
(tpkalis {incarcerata). Its characters are brought out in the following notes published in 
Entomological X'ews, 1893. Until we know its larval history it may be better to regard it as a 
distinct species. 
I am strongly incliuod to regard this form as a climatic variety of /. va%i var. ornafa. One 
medium-sized ornafa from southern California intergradcs Avith J, inornata., though it is much 
smaller. It has the large diffuse discal spot and pale leaden intervexmlar imtches of inornata. 
Of I. inornaia Xeum,, a male and female from Arizona are in the Edwards collection. It is 
the largest and palest of all our forms. It scarcely difl'ers from 7. ornaia in the situation of tlie 
lilies and their relative distribution; the oblique costal Avhite line and its continuation across the 
Aviug are the same, and the obtuse almost rounded apex of the V does not quite reach the edge, 
just as it does not in onmiu, but the loop made by the obtuse apex is more marked in inornata. 
The short middle line, ending on the hind edge of the wing, and the dislocated basal line are 
exactly as in ornaia, 
I, inornata,^ then, appears to be only a very large and unusually pale stiboeherous form of‘ 
aincalis, following the same law of climatic ATxriation, i. e., increase in size and a pale, faded 
aixpearance in Pacific Coast examples (south of Oregon), due firobably to a hot, dry, desert region, 
with a light-colored surface soil. By adaidation to these conditions the moths are better protected 
from observation, and thus the life of tlie species is assured. 
Geographical distribution . — So far as known confined to southeastern Arizona. Air. Xeumoegen. 
does not state the exact locality in southeastern Arizona” whence this form Avas brought, but it 
would seem to be a member of the Alexican (Sonoran) subprovince. Thus far no species of' 
Ichthyura is cited from Alexico by Air. Druce in the Biologia Centrali- Americana.. 
Ichthyura strigosa Grote. 
(PI. Ill, figs. 12-U). 
Ichthyura strifjosa Gvot&, Bull. IT. S. Geol. Geogr. Survey Terr., vi, p. 582, Aug. 30,. 1882; Check List N. 
Amer. Moths, p. 18, 1882. 
Pack., Fifth Kep. U. 8. Eut. Com. Forest Trees, p. 453, 1890. 
Smith, List Lep. Bor. Amer., p. 29, 1891. 
Kirliy, Syn, Cat. Lep. Het., i, p. 610, 1892. 
var.. ZwoihaUrt E(Uv. Eut. Amer., ii, 10, April, 1886. 
Pack., Eut. XeTvs, p. 78, March, 1893. 
Melalopha strigosa Neum. and Dyar, Trans. Amer. Ent. Soc., p. 191, 1894; Journ. N. Y. Ent. Soc., ii, p. 115,. 
1894. 
All the 8X)ecie8 found by Mr. Palm in Arkansas were collected in the southwestern counties of that State. 
