NYMPHALIDAE. HELICONINAE. 1817 



like bristles about the sides; sides and back of head rouuded. but the front much flat- 

 tened; sparsely pilose; color of front black, with two vertical orange stripes, one on 

 either side of and very near the suture; color of hind head, between the horns and 

 down the sides greenish yellow, the lower part of the side black; also a black stripe 

 runs back from base of the horn. Body cylindrical, thickest from middle thoracic to first 

 abdominal segments, tapering to the ninth abdominal segment very gradually ; fur- 

 nished with six rows of long, tapering black spines, bluntly conical at top, from which 

 springs a short and fine black bristle ; a few similar bristles irregularly placed about 

 each spine from base to top ; . . . over the legs on each side of the thoracic segments is a 

 black tubercle with hairs ; the spines of supralateral rows on the anterior segments are 

 longest, measuring 4 mm. ; the suprastigmatal spines are quite uniformly 2.8 mm. , and the 

 infrastigmatal 2.3 mm. ; color red-orange, with a ))road mediodorsal band of greenish 

 black and a broad, slate black band which occupies the space between the supralateral 

 and suprastigmatal spines, and I'eaches to the farther sides of and embraces the tuber- 

 cles of these rows ; the base of body slate black, so that the orange is restricted above 

 to two narrow stripes lying between the dorsal and the lateral black bands, and to an- 

 other stripe running with the spiracles (these bauds widened much after the moult and 

 as this stage proceeded), the whole upper surface highly glazed ; all the legs black. 

 Length, 38 mm. ; greatest breadth, 6 mm. There was some variation of color at 

 maturity; some larvae had a gray line or stripe below spiracles; on one this line 

 was white and extended the whole length, in another it disappeared at the first abdomi- 

 nal segment; the color of the dark band on upper part of side was greenish black, or 

 slate black, varying with the point of view. From fourth moult to suspension fifty- 

 nine to seventy-two hours ; from suspension to chrysalis thirteen to fifteen hours. 



Chrysalis. Long, slender, the thorax much compressed laterally, and the wing cases 

 very prominent, forming a narrow carinated hunch, which rounds abruptly on posterior 

 end; head case high, cylindrical, compressed transversely, the top sloping on the ven- 

 tral side at about 45'; on each vertex a short (1.3 mm. long), ear-like process, exca- 

 vated on the dorsal side, and crenated at the top ; between these the top of head is 

 twice incurved ; at the base of head case, on dorsal side, a depression ; the mesonotum 

 large, prominent, compressed, carinated, followed posteriorly by a deep and broad 

 depression; wing cases smooth, a little flaring at base, depressed in middle; abdomen 

 slender and tapering ; a row of minute, mediodorsal tubercles, and on either side of 

 these a row of large, rounded ones, those of the anterior segments largest of all, and 

 compressed laterally; colors very variable, some examples are buff with greenish 

 markings, or on the abdomen greenish brown ; the head and wing cases bufl", the former 

 with a slight red tint; on the depression at base of head case is a patch of clear pale 

 pink on either side the dorsal line, and between, as also at the outer edges of these 

 patches is a little black ; top of head case pink and black, the processes dark brown at 

 top and on dorsal side; mesonotum bufl', mottled green, as is the dorsal side of abdo- 

 men ; wing cases buft', ^vith a greenish patch on middle and a stripe running with one 

 of the interspaces of the wing next margin ; on side of abdomen a reddish bufi" 

 stripe, and below this a broad, greenish brown band ; on ventral side a clear pink patch 

 from end of wings down. Some were very black, the wing cases and anterior parts 

 mottled in light and dark black; some had the wing cases, mesonotum and head case 

 pink tinted, mottled all over with greenishjjlack ; the ventral edges of wing cases clear, 

 pink bufl"; in all examples the two pink spots at base of head case and the stripe on 

 abdomen appear, and in all there is a black, angular inscription like figure 3 or like V, 

 on the ventral side of the wing case, about one-third the distance from base to end. 

 Length, 26.7 mm. ; depth, 8.G mm. ; breadth at base of wings, 6.G mm. ; at abdomen, 

 5 mm. 



This buttei-fly, common enough in our aouthern states, has an immense 

 distribution, being found southward upon continent and island as far as 

 Argentine Republic, though Bartlett-Calvert does not include it in his list 



