GRAPTA I. 



GRAPTA COMMA. 



Orapta Comma, Ilarria. 



Form Hakuisii, Edw., Can. Ent., V, p. 184. 1873 ; Comma, Edw., But. N. A., I, 101, pi. 36. 1871 ; 



id., Can. Ent, XIV, p. 180. 1882; Fernald, But. Maine, p. 52. 1884 ; Frencli, But. Eastern U. S., 



p. 185. 1886 ; Scudder, But. N. E., I, p. 332. 1889. 

 Form Dryas, Edw., Trans. Am. Ent. Soc, III, p. 17. 1870 ; id.. But. N. A., I, p. 101), pi. 37. 1871- 



Scudder, 1. c. 1889. 



The stages of this species also were imperfectly described in volume I. 



Egg. — Conoidal, tlie base flattened and rounded ; marked by from eight to 

 eleven thin vertical ribs, which near the base are low, but from about the middle 

 begin to rise, increasing gradually, and terminate about the rim of the summit 

 with an incurved slope; these have their sides grooved as in Interrogationls ; 

 the micropyle in centre of a rosette of minute five-sided cells, about which are 

 two or three rings of larger cells ; color pale green. (Fig. c.) Duration of this 

 stage, at Coalburgh, W. Va., five days in April, four in July. 



Young Larva. — Length, 12 hours from egg, .08 inch ; in shape and clothing 

 in all respects like Interrogationls, as before described ; color whitish-green ; feet 

 and legs green; head rounded, the top depressed slightly; color dai-k brown. 

 (Fig. d.) Duration of this stage, four days in April, two days in July. 



After 1st moult : Length .13 inch ; color either brown-black, or black with 

 whitish lines at the junction of the segments ; the spines short, stout, black, and 

 set with short divergent bristles ; in the individuals which have white lines, on 

 segments 4, 6, 8, 10, the spines spring from whitish tubercles, on the other seg- 

 ments from black ; in the black examples all tubercles are black ; on 2 are 

 four small spines in cross row on the chitinous band ; a row of small spines over 

 legs and feet ; feet black, pro-legs olivaceous ; head round, depressed at top, the 

 vertices a little produced, each bearing a short, thick process with short spines 

 at top ; color of head and processes dark brown ; many black hairs over face 



