108 
MEMOIRS OF THE ilATlOXAL ACADEMY OF SCIENCES. 
The stripes are black, not reddish dark brown, as before. The third or spiracular band is a little wider than before,, 
and contiimed on to the prothoracic segment under the gamboge-yellow plate. Base of the legs and space around 
and between them honey-yellow, not dull reddish yellow, as in the previous stage. Middle abdominal legs reddish 
yellow, with a large black chitinoiia plate above the planta. 
Among 77 specimens, forming a cluster on uii apple tree at Salem, Mass., all molted August 
IS. into the last stage. There was no variation among these, except very slight differences in the 
width of the green stripes. 
The larva, spins no cocoon, but enters the ground to pu])ate. 
Fupa , — Of the usual shape. End of abdomen obtuse, cremaster with a short bifid sj)ine, each 
fork ending in two spinules, with an external shorter mesial one at base. 
Habits , — From Mr. D. S. Harris, of Cuba, 111., Ave learn that in 1882 the cateri)i]]ars of this 
species were so abundant on tlie black Avalmit that many persons haA'e cut down their Avaluut 
trees Avhen they were near their houses.” The laiwa i.s to be found from the latter part of July to 
the last of September. It is single brooded. It occurred at Providence, R, I., on the birch, 
September 10-12. 
Tlie cbara-cteristic attitude of this, as other species, when disturbed, is to raise the head and 
tail, each about as much as the other, the entire caterpillar forming tliree sides of an oblong 
square. When feeding, the last fourth of the body is slightly elcAmted. The larvae remain 
clustered together throughout life, until they disperse to pupate. 
Mr. Lugger states that the eggs are deposited, several hundred together, in a patch upon the 
underside of terminal leaves. Each egg is Avhite and spherical. In Minnesota the catciqullars* 
“frequently occur in Amst numbers, entirely defoliating our largest oaks.” The moth in Minnesota 
issues late in June or early in July. 
Mr. Lugger found one caterpillar covered with 249 eggs of a Tachina ffy. 
Eggs, June (Eiley); larvie, August, September, October, and November (Riley); moth, May, 
July, and Aiigust (Riley). 
Food jHauts, — Apple, pear, cherry, quince, linden, Avalnut, hickory, oak of various species, 
chestnut, beech, hazel, horubeam, birch, locust, etc. (Beutenmliller). In Kansas, Betula nigra 
(Popenoe) and Quercus palustris (Popeuoe); hickory, birch, oak, sumac, and walnut (Riley). 
Geographical disiribiition, — Orouo, Me. (Mrs. Fernald); BruusAvick, Me. (Packard); Salem, 
Mass., Boston (Harris, Packard); Amherst, Mass. (Mrs, Fernald); NeAv York (Angus, Beu- 
teiimuller, Dyar); New Jersey (Palm); Chicago (Bolter, \Yestcott); Peunsylvaiiia (Strecker); 
Manhattan, Kans., June 13 (No. 5) (Popeuoe); Canada, New Hampshire, Maine, Ncav York, 
Ncav Jersey, Pennsylvania (Palm); Missouri, District of Columbia, and Virginia (U. S. Nat. Mus.);, 
New York, Ncav Jersey, Ohio, Wisconsin, Champaign, 111., California (Trench). 
• 
Datana califoniica Riley (inedited). 
The only notes we have on this unpublished species are the following: 
Datana Californica. 
Dyar, Trans. Amer. Eiit. Soc., xxi, p. 198, 1894. 
Larva^, October 13, also adult; Santa Clara County, Cal, 
XoTK. — These larva' have been kno^m to fruit growers at Santa Clara for several years back as doing injuries 
by stripping whole rows* of apple and idum trees. They do not attack pear trees. A few larvte were still present 
on October 13, 1887, and about the defoliated trees many puptc wore found in the loose, dry soil, but most numerously 
among bunches of grass, where they frequently occurred several together. (Riley.) Professor French also reports 
it from California. 
Dr. Dyar informs me that Dr. H. II. Behr has found the larvne on the oak near Sail Fraucisco, 
but failed to obtain the moth. “According to recolleetioii, it is just like ministra, but paler 
throughout; about the color of Nadata behrensii (piukish buff*) (Ridgway, v. 14.) 
Datana californica ?. 
(PI. XI, lig. 1, la-lc.) 
I have received nine or ten larvm from Olympia, Wash., from Mr. Trevor Kincaid, who sent 
them early in October, and one of which lived on until the second week in Nov'ember, the others 
pupating in the earth. They wei^e feeding on Quercus garrynna. I have also received (August 1) 
