MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 173 



pio\ iik'd witli l;itt'iiil seta' ; in 5 simple. Palpi slightly asceiulinji'; third Joint pa.ssing beymid. the 

 trout, .secoud joint slightly curved iijiward. the srales beneath the joints being short: tiiird juint 

 halt as long as the second, porreet, being directed forward at a slight angle with the second joint. 



Thorax short; the scales of the prothorax distinctly marked. 



Fore wings hardly one-half as long as broad: costa very slightly concave in the middle, 

 toward the tip a little convex; outer margin oblique; internal angle obtuse; the inner edge near 

 the base of the wing is full in S , in the 2 straight. Venation: A short subcostal cell, the discal 

 vein of both wings forming a regular curve. Hind wings with the costa long and straight, apex 

 subrectangular; from thence the outer margin is longer than usual and slowly rounded to the 

 not very distinct internal angle. The wings reach to the basal two-thirds of the abdomen. 



Legs pilose, the anterior femora densely so, those of the 9 with longer scales, and more 

 irregularly and thickly pilose. 



Abdomen long, cylindrical, with lateral tufts, and tip of S slightly tufted. 



In coloration the species are generally gray, with dark streaks running parallel to the venules. 

 There is a distinct basal longitudinal mesial streak and an outer very distinct geminate curved line. 



The long, slender, arnte pal])!, the high conical tufts on the vertex of the head, the shape of 

 the wings, their markings, and the venation are sutficiently diagnostic of this genus. 



Egp. — Shape of a flattened spheroid, the upper pole somewhat concave, a little broader at tlie 

 base than at the top. Surface of the shell covered with polygonal areas, which varj- somewhat in 

 shape, size, and distance a])art, the interspaces being rather broad. 



Larva. — Head round; ixidy elong.ited, rather slender, of nearly uniform thickness, with a low 

 rounded black dorsal knob on the eighth abdominal segment; no other armature except a jiair of 

 subdorsal black warts on the lirst abdominal segment. Anal legs slender, uplifted. Three lateral 

 black lines, and base of all the legs witii a black patch. Freshly hatched larva : Head very large, 

 body tapering behind; end of body with the slender anal legs, which are bookless and slightly 

 reversible, held up while in motion. Two subdorsal conspicuous papilhe on the first abdominal 

 segment, and two similar but mu(;li smaller ones on the eighth, which in the last stage form the 

 single dorsal knob. Glandular hairs unusually long, thick, davate, black, clear, and colorless at 

 the end. 



Cocoon. — Thin, loose but somewhat tough, covered with bits of earth, etc., and spun on the 

 surface of the ground. 



Pupa. — Cremaster conical, cleft at the end, each fork blunt, and bearing three hooked setfe. 

 / Geof/niphicdl (ll.strlhi(t!oii. — Of the two species known, one {iiifi-ni<() is confined to thi; 

 Appalachian subprovince and the other ranges through the A])palachian and the Austroriparia i 

 subprovinces. 



Q^^dcnia.sia sciiata Di-uce (Biol. Centr. Amer., p. 23."i, pi. 2.3, fig. 1), from Jalapa and Panama 

 (volcan de Chiri(|ui), has the shape of fore wings and the markings of a Dasylophia, and I am 

 quite of the opinion that it is not an Qidemasia (Schizura) ; the two black round spots near the 

 inner angle are just as in D. angidna. In fai't I regard it as very closely related to D. aiuiuiiKi, 

 and hence as a representative species. 



Mr. Neumoegen has kindly shown me Ni/stalea amazonica Staud., from Brazil, and which is a 

 genuine Dasylophia very closely related to our D. anguina. If this is so, then the genus ranges 

 through the Mexican ("Sonoran") subprovince and the Central American region to Brazil. 

 N. iiidiaua Grote I am inclined to regard as a Noctuid. ' 



SYNOPSIS OF THE Sl'F.ClES. 



Body anil l).asal region of fore wings white; .a distinct black line along cubital vein I). aiKjuina 



Body and wings mouse-ljrown; no blacli line; basal region of fore wings tawny brown D.iiilcnia 



' I copy from Neumoegen and Pyar's Revision the following description of this moth, which I have been 

 unable carefully to examine: 



"Xyntalftt indiaiKi Grote, Papilio. iv, p. 7, 1884. 



"Anterior part of tliorax witli a dull yellowish patch as in Datana, bordered by black ; the rest gray. Fore wings 

 much cbinijatpd ; antenna' simjile, ciliate, the cilia longer at base, a tuft on each joint at e.ach side. Primaries cinereous, 

 ]ialfr on the disc, distinctly mottled; subbasal line faint, T. a. and t. p. lines close together, straight, parallel, 

 narrow, blackish-brown, oi|uidi&tant from the indistinct black discal ringlet. On veins 2-3 (viiio-viii), near the 

 base, a black patch: another between veins 3-4 (vii-Vi) .just outside t, p. line. Subterniinal row of small black 

 dots, two in each interspace, and terminal black shaded spots. Secondaries blackish, pale at base. Expanse, 40 nmi. 

 1 lab, Florida." 



