MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 177 



The eggs of this rather rare motli were sent me bj^ Miss ^Morton, of Newburg, N. Y., having 

 ibeeii hiid about the 20th of July. The larva hatched at Brunswick, Me., July 2.5; the first molt 

 occurred July 28, the second August U, the third August 10 to 11, and the fourth August 20 to 22. 

 Riley has f(jund the larva as late as iu October, the moths in March, April, and June. 



Food plant. — Usually the wild indigo plant (Harris, Uridgham, at Providence); soiaetimes 

 the locust (Harris, Miss Morton); clover (Dyar); Lespedeza capitata (Q.a,vviii)] locust and iJfyj^/.vm 

 tincforia (Riley). 



Geouiiiphical distributio7i, — Occurs in both the Appalachian and Austroriparian subprovinces, 

 •extending from southern Maine and from Massachusetts to Florida and Georgia, as well as Texas. 



Kittery, Me. (Thaxter) ; r.ostou, Mass. (Harris) ; Brookline, Mass. (Shurtleff) ; New York, Provi- 

 dence, R. I. (Bridgham, Dearden); New York (Miss Morton, Dyar); Plattsburg, N. Y. (Hudson); 

 Michigan, New York, District of Columbia (Riley) ; Georgia (Abbot and Smith); Georgia (Riley); 

 New York, Wisconsin, Georgia (French); New York, Arkansas (Palm). 



Dasylophia thyatiroides (Walker). 

 (I'L. IV, fig. 9.) 



Eelerocampn thjialiroides Walk., Traus. Eut. Soc. London (3), i, p. 79, 1862. 



Dasylophia interna Pack., Proc. Eut. Soc. Phil., iii, p. 363, 1864. 



Heterocampa tripariHa Walk., Cat. Lep. Het. Br. Mus., xxxii, p. 419, 1865 {fide Grote and Rob.). 



Xylina siynata Walk., Cat. Lep. Het. Br. Mns., xxxiii, p. 758, 1865 {fide Smith, Can. Ent., xxiii, p. 121). 



Grote, New Check List N. Araer. Moths, p. 19, 1882. 



Smith, List Lep. Bor. Amer., p. 30, 1891. 

 Ralima interna Kirby. Syu. Cat. Lep. Het., i, p. 569, 1892. 

 JJusylophia thyatiroides Dyar, Can. Eut., xxvi, p. 69, March, 1894. 



Nenm. and Dyar, Trans. Amer. Eut. Soc., xxi, p. 200, June, 1894; Jouru. N. Y. Ent. Soc, 

 li, p. 116, Sept., 1894. 



Moth. — Two S . X/ight mouse-brown; palpi above blackish; sides of the tuft on tlie vertex of 

 the head grayish; protliorax with a faint dark line. Middle of the fore wings grayisli, dusted 

 coarsely witli brown. Differs from D. anguina in having a zigzag or scalloped cross line on the 

 basal third of the wing within which the wing is tawny brown, not white, as in anguina; also a 

 double scall()i>ed line ending just within the inner angle. Costa toward the apex interrupted by 

 gray spots, wliich are more distinct on the underside. A subniarginal row of very obli(|ue dark 

 linear spots between the venitles, succeeded by lighter, longer streaks of light tawny white. 

 Fringe gray, with dark spots. Pectinations of the antenna' a little longer than iu I), anguina. 

 Tarsi tipped with lighter scales. Hind wings mouse-brown. 



Expanse of wings, 3 , 3(1 mm.; length of body, S , IG mm. 



This si)ecies differs decidedly from J>. anguina in having a zigzag cross line on the basal third 

 of the fore wing within which the wing is tawny brown, not white; also a ilouble scalloped line 

 ending just within the inner angle. Besides, there are no black lines, and the body is mouse- 

 brown in hue. 



Dr. Dyar has kindly lent me a colored sketch of Walker's type of JI. thyatiroides in the 

 Oxford Museum, received from Colonel Swinhoe. There seems to be little doubt but that it is my 

 D. interna. 



Food plants. — Dasylophia interna Pack.! Carya (R. Thaxter, Can. Ent., xxiii, p. 34, February, 

 1891. 



Geographical distrihtttion. — Orono, Me. (Mrs. Fernald); Kittery, Me. (Thaxter); Dublin, 

 N. H. (Leonard, in Harris Coll. B. S. N. H.); New York (Mrs. Fernald); New York, July, moth 

 .(Riley); Maine, New Hampshire (French); Plattsbui^g, N. Y. (Hudson). 



Synimerista Hiibuer. 

 (PI. XLIII, fig. 2, 2a. Venation.) 



rhahvna Abbot and Smith (iu part), Nat. Hist. Lep. Ins. Georgia, p. 159, Tab. LXXX, 1797. 



Symmeriatu Hiibu., Verz. Schmett., p. 248, 1816. 



Edema Walk, (in part). Cat. Lep. Het. Br. Mus., v, p. 1028, 185.5. 



Morris, Synopsis Lep. N. Amer., p. 242, 1862. 

 S. Mis. 50 12 



