GRAPTA I. 



of the segment, all these except the laterals on 2 to 4 with long tapering hairs, 

 those on front segments turned a little forward, on the middle upright, svfter 6 

 more or less recurved ; the hairs on 2 to 4 are short, turned down and for- 

 ward ; on 2 to 13 is a row of minute tubercles running with and behind the spir- 

 acles except on 2, two to the segment on 2 to 4 and on 13 ; on 2 the pair stand 

 before and a little above the spiracle, oblique to the line, and the hairs of these 

 are unequal, the upper one being one third as long as the other, turned down 

 and forward ; the other hairs of this row are turned down and back ; along base 

 from 2 to 12 is a row, also minute, two to the segment, the middle ones nearly 

 in horizontal line, on other segments the hinder one a little elevated, the haii's 

 short, depressed ; at base of each pro-leg a fine depressed hair, on 13 four such 

 in line ; on 3 and 4 similar hairs, but from minute tubercles; on 13 a chitinous 

 sub-oval shield on which are eight tubercles and hairs, two dorsals in front, two 

 on rear, two at each side, corresponding with the sub-dorsal and lateral rows ; 

 color of body at first whitish-yellow, semi-translucent ; feet and legs same ; some 

 examples have the dorsum crossed by brownish patches alternating with the 

 yellow of the intermediate segments ; as the stage proceeds the color changes to 

 red-brown with white on dorsum of 4, 6, 8, and 10, individuals varying, how- 

 ever ; head rounded, very little broader than high, the top depressed slightly ; 

 color shining black ; furnished with several small black tubercles, in four pretty 

 regular cross rows; one row near top of four, of which the largest is in front 

 on the middle of the lobe, the other round the side ; one across middle of eight, 

 one below this of six, all these minute; and one over mandibles of four, still 

 small; each tubercle with its short black depressed hair. Duration of this stage 

 three days in May, two in summer. (Figs. b-¥.) 



After 1st moult : Length .14 inch soon after the moult, in 24 hours .20 inch ; 

 slender, even ; color red-brown, with indistinct whitish lines ; of these, a wavy 

 line runs with second laterals ; from base of each first lateral is an oblique line 

 outward to the front of the segment, and from each dorsal are two such lines, 

 one on either side ; armed with seven rows of spines, one dorsal, and three on 

 either side, as in the genus; these are short, stout, black, beset near top with 

 short branches, with some spinules on the sides ; on dorsum of 2 is a transverse 

 row of four short, simple spines ; as the larva approaches second moult, the bases 

 of the dorsal and first lateral spines become white or yellow, or reddish-3'ellow, 

 while the color becomes more red, and the lines become more distinct; legs and 

 feet dark brown ; head rounded, depressed at top, the vertices a little produced, 

 each bearing a stout, thick, black process, with conical spine at top, and shorter 

 ones around the base of this ; color black, with many black hairs. Duration o£ 

 this stage from two to three days. 



