OF PHILADELPHIA. 25 



Body cylindrical, immarginate, above dark brown, glabrous, au 

 obsolete, dorsal, whitisb, slightly impressed, acute line ; segments 

 each with a white dot on either side above, snd a larger trans- 

 versely oblong lateral one, which is more completely bisected on 

 the posterior segments into two distinct dots, which on the ter- 

 minal segments resemble the dorsal ones, ultimate one abruptly 

 narrower than the preceding and truncated, anterior segments 

 attenuated to the head, which is wider than the anterior one, an- 

 terior segment as long as the second and third ones conjunctly ; 

 spiracles somewhat prominent; eyes very distinctly granulated, 

 subtriangular, black ; head dark-brown, labrum white. 



Inhabits the same situations, and is similar in general form to 

 the preceding species, but is less common and rather smaller. 

 The dots, spots and lines are for the most part slightly impres- 

 sed. 



3. J. ANNULATUS. — Body with numerous, elevated, obtuse 

 lines; of which four are above the stigmata; ultimate segment 

 glabrous, unarmed. 



Inhabits the Southern States. 



My Cabinet. 



Body cylindrical, immargiuate, above brownish with a slight 

 tint of red, immaculate, beneath yellowish white ; segments each 

 with about tifteen elevated obtuse lines, of which four are equal 

 dorsal, a pyriform, larger, oblique one on the stigmata, and about 

 ten decreasing in size to the feet, anterior segment [104] as long 

 as the three succeeding ones conjunctly and glabrous, posterior 

 one glabrous reddish-brown, as long as the two preceding ones, 

 united and obtusely rounded at tip ; head whitish before ; an- 

 tennae white ; eyes transverse linear, black : vertex not distinctly 

 impressed. 



A rather common species in the Southern States, inhabiting 

 with the preceding and in decaying wood. 



4. J. LACTARius. — Body fuscous with a rufous dorsal line, 

 numerous elevated lines, of which about fifteen are above the 

 stigmata, ultimate segment unarmed. 



My Cabinet. 



Body cylindrical, above fuscous, with a dorsal rufous vitta and 

 an obsolete one each side ; beneath yellowish white ; segments 

 each with numerous, elevated, longitudinal lines, of which about 

 1821.] 



