54 BULLETIN 16, UNITED STATES NATIONAL MUSEUM. 



Hcarcoly iMnai^jiiiate. raiis of fopt, 71, oxtenflin}; iM'youfl sides of body, 

 nu»d('nit«'Iy stout, sparsely pilose. Leii^itli of body, L'S-'JO uiillinieters; 

 .vidth, li.3-2.r» millimeters. 



Itahitai. — Fort Siiellins. Minnesota. 



1 have examined two female specimens, eollected ))y Mr. Walter I). 

 Howe. 



From castaneuH it is distinguislied by the <'yes, rei»uftnatorial i»ore 

 and anal scale; it is also more robust, and differs somewhat in color. 



13. ParajuluB castaueuR, s\>. uo\ . 



Color nuich as in J. impressus^ but the lateral line of spots larger and 

 continent imsteriorly, a very dark line between the ejes, feet dark. 

 Moderately slender, roiigli, not pilose. Vertex very tiiu'ly wrinkled, a 

 faint medi.ui sulcus, setigerous foveohe present. Antenna' moderate, 

 equaling width of body. Eyes distinct, triangular; ocelli, ~»4, arranged 

 in 8 aeries. Segments, 4:2-51. Sides of tirst segment striate. Other 

 segments deeply striate; above numerous tine stria' which have a num 

 ber of short branches. Last segment produced into a moderate spine, 

 which i)ro.jects beyond the anal valves, not pilose; anal valves not niar- 

 ginate, very sparsely pilose; anal scale obtusely rounded, rather small, 

 l)ilose. Keinignatorial pore moderate,_touching the transverse suture, 

 which is sharply sinuate. Pairs of feet, 00, equaling width of body, 

 rather slender, sparsely i)ilose. Male: Mandibulary stipes strongly 

 produced beneath. First pair of feet large, uncinate, numerous tuber- 

 cles on the inner surface, pih)se. Coxte of the second pair as in J. 

 imprensus. Genitalia about half concealed, composed of three parts; 

 anterior jilate nmnd, the end strongly clavate, pilose; the middle plate 

 rounded, curving up in front of anterior and then backwards between 

 . where it expands into an elongate, wavy plate; on the inner side it 

 IS divided into three lobes or spines, the anterior large and i)laced at 

 the beginning of the expansion, the second small and placed near the 

 end, which is somewhat serrated, a lanceolate spine springing from the 

 base; posterior plate whip-like, curving upwards and inwards until they 

 meet, and then outwards. Flagellum not detected. Length of body, 

 30"""; width, 2"'"'. 



Habitat — Fort Snelling, Minnesota. 



I have examined one male and one female, in a broken coiidition, col- 

 lected by Mr. George Howe. 



14. ParajuluB pennsylvanicus (Brandt). 



JuIhx pennsj/lranicHs Brandt, Recueil, 85, 1841. 



Dark brown, a black median line and a lateral row of spots, feet pale. 

 Moderately robust, rougb, i)ilose, each segment except the tirst having 

 two rows of setigerous foveola^ placed on the posteri(U' division, the first 

 row on the anterior third and the other along the posterior border. 

 Vertex with a faint median sulcus, setigerous foveohe present. An- 



