34 yorth American Ji(Uda\ 



pair of feet very large, crassate, curving inwards and crossing eacli 

 other, armed with numerous tubercles on tlie inner side, moderately 

 pilose. Par A JUL us I. 



s* 



Pronientum and tirst segment same size in both sexes ; first pair of 

 feet of male small, stumpy, crassate and straight, tubercles absent, 

 sparsely pilose. Pseudojulus, subgen. nov. II. 



Siibfjetufs l*arajulus. 



11. PAKAJULUS IMPKESSUS (Say). 

 Jul t/^ iijiprc'fisu^ S'.\y, Journ. Acad. Nat. Sci, Pliila. , 103, 1821. 



Chestnut-brown, the median line and a lateral row of spots black, also 

 an indistinct row of large dark spots partly covered by the feet ; seg- 

 ments above with two short light lines, and pale spots on each side of 

 the lateral line ; feet pale ; line between the eyes not very dark. 

 jMcderately slender, not pilose or smooth. Vertex with a median 

 sulcus, setigerous foveolai present. Antenna; long and slender, equal 

 to the width of the bod}', moderately pilose. Eyes distinct, triangu- 

 lar, the sides somewhat rounded; ocelli, 40-60, arranged in 7-10 se- 

 ries. Segments, 45-55. First segment with the sides striate. Other 

 segments not deeply striate, numerous indistinct wavy striae above. 

 Last segment with a moderate short spine, not projecting beyond the 

 anal valves, sparsely pilose ; anal valves smooth, sparsely pilose, 

 scarcely marginate ; anal scale triangular, sparsely pilose. Repugna- 

 torial pore moderate, oval or round, partly hidden by the transverse 

 suture, which is sharply emarginate. Pairs of feet, 70-90, equaling 

 width of body, ]ather stout, sparsely pilose. Male: Mandibulary 

 stipes rather strongly produced beneath. First pair of feet large, 

 long, not much curved, the inner surface with numerous tubercles, a 

 few spinous ones near the base, sparsely pilose. Coxae of the second 

 pair of feet produced into along, parallel appendage, the tip rounded, 

 very sparsely pilose. Genitalia fully exposed, composed of three 

 pieces ; anterior plate moderately long, round, slightly twisted, the 

 end scarcely clavate, turning outwards, densely pilose ; middle plate 

 large and thin, forming a tube ; posterior plate sickle-shaped, the end 

 bifid, inner or under edge strongly seriated, a thin lanceolate spine 

 springing from the base, Flagellum not detected. Length of body, 

 18-32 mm.; width, 1.8-2 mm. 



Habitat, Georgia, IJliiiois, Indiana, Michigan and MinnesotM. 



I have examined specimens of this species from Ludingron, 

 Michigan, and (Jhaiiiicey, Indiana ; those from the latter place 

 are larger and darker in color. 



