PAMPIIILIDI: THE GENUS ANCYLOXIPHA. 1553 



apical ones of each joint a little longer thiin the others; basal joint almost equalling 

 the lengtli of the second, third and fouftli togetlier, the second about half as Ion;; as 

 the b;isal joint. Claws small, delicate, pretty strongly and regularly curved. Pad 

 pretty large, nearly circnlar; paronychia exceedingly slender, thread-like, about one- 

 third as long as the claws. 



Upper organ of male alxlominal appendages small and slender; centrum depressed, 

 above scarcely longer than broad; hooks consisting of a depressed, arcnate, scarcely 

 tapering ribbon, overlaid iDy a median, slender hook and bearing bene.ath a compressed 

 lamina with an anterior tooth. Clasps exceedingly long and slender, and, until 

 divided, nearly eqnal ; upper lobe very long and slender, parallel to the apical lobe 

 which is equal and extends backward and curves upward. 



Egg. Low, scarcely forming half a sphere, uniformly r()\inded, the base very 

 broadly truncate, its rim rounded, the height exceeding by very little half the diameter ; 

 surface coveretl with inconspicuous, polygonal, somewhat lozcuge-shapcd cells ;micro- 

 pyle rosette consisting of a pretty large cluster of irregularly disposed, angular, usu- 

 ally hexagonal cells of a nearly uniform size. 



Caterpillar at birth. Head tumid, the sutures a little impressed. Body rather 

 short and plump, nearly equal, tapering at either extremity; dorsal thoracic shield 

 narrow and transverse, with a separated triangular piece just above the spiracle; the 

 segments of the body divided iuto three sections by two transverse creases ; minute 

 papillae arranged as follows: a subdorsal anterior row, a lateral posterior row, 

 a suprastigmatal posterior row, and an infrastigmatal central row; dermal appen- 

 dages supported by these papillae long, straight, tapering, not perceptibly enlarged 

 at tip, though presumably truncate; those of the subdorsal series are directed inward, 

 of the lateral a little forward, upward and inward, of the suprastigmatal series forward, 

 of the infrastigmatal erect ; besides there are long, recurved, tapering bristles on the 

 terminal segment, as described under the species. 



Mature caterpillar. This was observed in life only in the second stage and insuffi- 

 cient notes taken. The dorsal thoracic shield narrows on the sides without reaching 

 the spiracle; the body is covered with regularly distributed papillae, each bearing a 

 short, t.apering, delicate hair; otherwise much as in the caterpillar at birth. 



Chrysalis. Rather long, nearly cylindrical, obtusely rounded at the anterior ex- 

 tremity, tapering behind ; tongue reaching the base of the cremaster; free terminal 

 joints of abdomen forming a rapidly tapering, conical mass, the cremaster exactly 

 continuing the lines of the cone, bluntly rounded at tip, and a little compressed, so as 

 to be twice as broad as thick, the apical field of booklets small and almost linear; 

 these segments are furnished with linear series of miuute tubercles, each bearing a 

 strongly depressed, backward directed, short, curving, pointed bristle ; there is in par- 

 ticular an infralateral series at least two to a segment, a suprastigmatal series and an 

 infrastigmatal band, three or four to a segment, besides many veutrostigmatal ones ; 

 anal booklets short, enlarging almost from the base, strongly crooked and expanded. 

 Described from the terminal portion of a specimen and the figures and notes of Harris. 



This genus, peculiar to America,* seems to spread over a district which 

 very commonly forms the boundary of Hesperidan genera, viz., that part 

 of America east of the Rocky mountains and including the Antilles, which 

 lies between Lat. 15° and Lat. 45° N. But three species are known, 

 one belonging to the southern portion of the main land, one to the An- 

 tilles and one to the United Statesf. The latter is common in the southern 

 half of New England. 



The butterflies resemble but little other Hesperidae. Their simply 



•Some of the species, placed In this genus fer under the specific name leporiua, but, I 

 by Fclder, do not belong here. believe, not yet described, occurs in Venez- 



tA fourth, listed by the late Herrich-Schaef- uela. 



'9S 



