114 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



almost concolorous with primaries. The discal dots are hirge and distinct, exactly as iu D. drexelii^ 

 Otherwise the moth is the same as its allies. 



Expaijse of wings, J:7-G0 mm. 



From 7>. (hrxclii it differs in the absence of the bright costal shade, the more uniform coloration ; 

 from />. miiiintni, as already pointed ont under that species. VYitli the other species it could 

 scarcely be confounded. (Dyar.) 



&///. — Of nearly the same size and shajie as in that of D. dre^relii, but considerably smaller 

 than that oi D. palmii. Differs from that of Z>. drcrclii in the ujjper end with the nucropyle being 

 somewhat depressed. It is round, barrel shaped, the shell porcelain white. The micropyle is 

 somewhat larger than that of i>. dre.relii. Described from living specimens received from Miss 

 C. G. Sonle. 



Lmvit. — I have not seen the iai'va alive. The excellent figures kindly loaned me by Miss 

 Jlorton well rei)resent this sjjecies, which is readily recognized by its checkered appearance. 



The following description of the eggs and larval stages has been kindly sent me by Dr. Dj'ar: 



E(ig. — Ijaid in patclies of 90, 95, 102, on underside of leaf of the food plant, Andromeda 

 ligustrina. Cylindrico-pyriform, being of less diameter just below the summit, flattened at base 

 and vertex. Uniform white, with a rather large central black spot at vertex. Diameter, 1.1 mm.; 

 height, 0.7 mm. 



Larra, Jir.ft xt<i(/e. — Head round, shining black; Avidth, O.o mm.; cervical shield, anal plate, 

 thoracic and anal feet, and leg-plates black. Body wine-red, a broad subdorsal and lateral yellow 

 baud, each containing a narrow red line. No lines on venter. Hairs, sc\ eial from a wart, the 

 warts minute, dark brown; no secondary hairs. 



Second stage. — Head shining black or with a slight brownish tint, rounded, rather higher than 

 wide; width, 1.1 mm. Body dark wiue red, the bands as before, greenisli yellow; venter with a 

 narrow central pale yellow line. Later tlie bands become almost white. liesides the liairs from 

 the warts, short, flue, secondary hairs are present on the skin. 



Third, stage. — Head higher than wide, narrowing toward apes, the sutures depressed. Color 

 red-brown, the ocelli and moutli black; width, 1.6 m. Cervical shield black or partly orange; feet 

 and anal plate shining black. Body blackish brown, the stripes at lirst as before, but later they 

 appear as four very broad, lateral, clear white (or bright yellow). bauds, with slight traces of the 

 ventral lines. In a few the pedal line is tolerably distinct, but narrow. Bases of the legs and 

 corresponding spots on legless segments dark wine-red. Hairs not abundant, pale, the secondary 

 ones very short. 



Fourth stage. — Head as before; width, 3.1 mm. Body black, the side stripes much broader 

 than the intervening spaces, contiiurous, clear white (or yellow). The ventral strijjes (two pedal 

 and medio- ventral) are represented by a few linear dots or are absent. Cervical shield light brown ; 

 anal plate black or i)artly brown. Thoracic, anal feet, and leg plates black, the bases of the feet 

 red, as before. The stripes are not continent at either extremity. 



Fifth stage. — Head rounded, as high as wide, shagreened, shilling; color, orange-brown or- 

 light mahogany-red; width, 5.3 mm. Cervical shield, anal plate, bases of legs, and corresponding 

 spots on legless segments mahogany-red. Anal and thoracic feet blackish. Body black, the 

 ventral lines as before, but the lateral are broken by the black ground color into a series of 

 subquadratc spots, as follows: The two irpper lines are broken in all the segmental incisures and 

 broadly through the center of the segment; the third (lateral) is broken in the same manner, but 

 less broadly in the center of the segment, while the fourth (substigmatal) is not broken in the 

 incisure ijor center of the segment, but once before the spiracle and again toward the posteri(n' 

 edge of the segment. The spottings are partially obsolete at the extremities. Primary hairs 

 arising from the wart-areas long, white; secondary ones very short, black. There are two forms 

 of this larva in which the spots are pure white or liright yellow, resi)ectively. 



Larv;e from Dutchess and Ulster counties, N. Y. (Dyar.) 



Pupa.— $ and 9 . Head rather prominent, roughly corrugated, with the three frontal ridges 

 moderately well marked; the head is broader and the ridges less marked than in D. perspieua. 

 Thorax and body coarsely punctured, but not so much so as in i*. perspieua. The body is less dull, 



