HENRY SKINNER. 179 



white, hyaline spots with a white spot next the costa. Hind wings 

 without spots, but with some brown clouding in the middle. Fringes 

 pale gray, brown at the base, cut with brown at the ends of the veins 

 on the fore wings. Underside as in E. pylades, except that there is 

 more gray on the hind margin of the fore wings, and the white spots 

 are larger than in that species, being a little larger tnan on the upper 

 side. Body and head above concolorous with the wings ; below gray- 

 ish, head and palpi whitish." 



This species does not have a costal fold in the male. 



Food Plants. — Rhynchosia toine7itosa Torr. and Gray ; Teph- 

 rosia ambiqua Chapm., Centrosema virginiamim Benth. 



" Caterpillar. — Last stage. Head black, minutely scabrous, covered 

 with a dense pile of golden brown or tawny hairs with a few inter- 

 mingled black ones, the median suture rather deeply impressed above. 

 Ocelli, jaws and antennae all piceous, as well as the neck. Body dull 

 mahogany brown tinged with luteo-olivaceous, profusely sprinkled 

 with dirty, pallid wartlets, each giving rise to a very short, scarcely 

 tapering, minutely clubbed hair, generally luteous, often black or tip- 

 ped, the black ones most abundant in the posterior part of the body. 

 There is a very faint and narrow, dusky, dorsal line, and a faint supra- 

 lateral line scarcely lighter than the ground. Dorsal shield of first 

 thoracic segment dull black, the softer integument in front and behind 

 is pallid, with no sign of any brighter tint. Spiracles black. Legs 

 black. Prolegs color of body. Length of body, 23 mm. ; breadth of 

 same, 4.5 mm. ; breadth of head, 4.5 mm. It diflfers from pylades in 

 its generally darker color, in the color of the soft integuments of the 

 first thoracic segment, and appears to be more scabrous. 



" Chrysalis. — Dull greenish brown, the eyes and appendages with the 

 posterior edges of the abdominal segments, the basal wing tubercles 

 and the veins of the wings marked with fuscous brown ; a few dots of 

 the same along the posterior margin of the wing cases. It is stouter 

 bodied than T. pylades. Length, 23 mm. ; height, 7.5 mm. After a 

 colored drawing by Abbot." 



Habitat. — Miss. Valley to 111. ; Wise. ; Iowa ; Kansas to 

 Fla. ; N. Mex. ; Ariz. ; Tex. ; Mex. ; Cent. Am. Also in 

 New England, Conn, and Mass. 



Records. — Camden and Cape May, New Jersey, August ; 

 Philadelphia, Pennsylvania ; North Carolina ; Tipton, Geor- 

 gia, April 24th; Nashville, Tennessee, July 30th. 



Bathyllus and pylades have been much confused in collec- 

 tions. The males oi pylades are readily known by the costal 

 fold of the primary wings. The character of the band of 



TRANS. AM. ENT. SOC, XXXVII. 



