108 :\[EM01ES OF THE ^^\TIONAL ACADEMY OF SCIENCES. 



Tbe stripes arc black, not redilish dark lirown. as boforo. The tliinl or siiiracular band is a little wider than before, 

 and continued on to tbe prothoracic sefjnient nuder tlie ganiboi^e-jellow jilato. Hase of tbe le;is and si);ne aronnd 

 and between them lioney-yellow, not dnll reddish yellow, as in the i)revions stage. Middle abdominal legs reddLsh 

 yellow, with a large black ebitinous i)late above the planta. 



Among 77 specimens, forming a cluster on an ai>i)le tree at Salem, ^lass., all molted August 

 IS into the last stage. There was no variation among these, except very slight ditierences in the 

 width of the green stripes. 



The larva spins no cocoon, but enters the ground to pupate. 



I'Kjxt. — Of the usual shai)e. End of ab<lonien obtuse, cremaster with a short bilid spine, each 

 fork ending in two spinules, with an external shorter mesial one at base. 



Habits. — From Mr. I). S. Harris, of Cuba, 111., we learn that in LSSli the caterpillars of this 

 species were "so abundant on the black walnut that manj persons have cut down their walnut 

 trees when they were near their hou.ses." The larva is to be found from the latter part of .July to 

 the last of 8ei)tembcr. It is single brooded. It occurred at Providence, R. 1., on the birch, 

 September 10-12. 



The characteristic 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 three sides of an oblong 

 square. When feeding, the last fourth "f the body is slightly elevated. The larva- remain 

 clustered together throughout life, until they disjier.se to i)ui)ate. 



Mr. Lugger states that the eggs are deposited, several liundred together, in a i)atch upon the 

 underside of terminal leaves. Each egg is white and s])herical. In ^linnesota the cater])illars 

 "fre(|uently occur in vast numbers, entirely defoliating our largest oaks."' The moth in .Minnesota 

 issues late in June or early in July. 



Mr. Lugger found one caterjjillar covered with 240 eggs of a Tacliina tiy. 



Eggs, June (Itiley); larvie. August, September, October, .ind November (Kiley); moth, May, 

 July, and August (Riley). 



Food pliints. — Api)le, jjcar, cherry, quince, linden, walnut, hickory, oak of various species, 

 chestnut, beech, hazel, hornbeam, birch, locust, etc. (Beuteumiiller). In Kansas, Beiula nigra 

 (Popenoe) and Quercus palustris (Popeuoe); hickory, birch, oak, sumac, and walnut (Riley). 



G<wii(q)ltic(ii (li.striliHtion. — Orono. 'Slo. (Mrs. Feriiald); Urunswick, Me. ^Packard); Salem, 

 Mass., Boston (Harris, Packard); Amherst, Mass. (Mrs. Feruald): Xew York (Angus, Beu- 

 teumiiller, Dyar); New Jersey (Palm); Chicago (Bolter, Westcott); Pennsylvania (Strecker); 

 Manhattan, Ivans., June 13 (No. .")) (Poi)enoe); Canada, New llanqisliire, Maine, New York, 

 New Jersey, Peuu.>;ylvania (Palm); Missouri, District of Columbia, and Virginia (U. S. Nat. Mus.); 

 New Y'ork, New Jersey, Ohio, Wisconsin, Champaign, 111., California (French). 



Datana californica Riley (im^dited). 

 The only notes we have on this unpublished species are the following: 



Datana Cali/orniea. 

 Dyar, Trans. Anu-r. Ent. Soc. xxi, p. 1!»S. 1894. 

 Lai'va-, October IJ, also adult; Santa Clara County, Cal. 



NoTK. — These larvje have bc*n known to fruit growers at Santa Clara for several years b.ack as doing injnries 

 by strijiping whole rows of ajiple and plum trees. They do not attack pear trees. A few larv;e were still (nesent 

 ou October 13, 1887, and about the defoliated trees many jnipie were found in the loose, dry soil, but most niimeronsly 

 among bunches of grass, where they froiiueutly occurred several together. (Riley.) Professor French also reports 

 it from Califoruia. 



I)i'. Dyar informs me that Dr. II. H. P.ehr has found the larva? on the oak near San Francisco, 

 but failed to obtain the moth. "According to recoUei/tion, it is just like ininintra, but paler 

 throughout; about the color of Xadata behremii (pinkish buft')". (Ridgway, v. 14.) 



Datana califoriiica ?. 



(PI. Xl, lig. 1. la-lc.) 



I have received nine or ten larva' from 01ynq)ia, Wash., from Mr. Trevor Kiiu'aid, who sent 

 them early in October, and one of wliich lived on until the second week in November, the others 

 pupating in the earth. They were feeding on Quercus (jarri/antt. I h;\vo als:) received (August 1) 



