52 Bi'LLirriN J6, unitki) statks national museum. 



Youniif exsunples differ from the adults as follows: 



L..|iKtli. WiilHi. S«.Kmeiitii. ' ^"^J "' ' 



Ocelli. 



Ill III . Ill III . , 



25 2. 5 I iM m 24 B 



27 :J. i 49 «l 25 I! 



34 I 2. 5 44 ' »i5 1 15-5 



22 I 2.3 4:1 j 70 I 19-6 



iCilUS III — I'AHAJULUS HlimlM'lt illld SilUSSUl«'. 

 Parajulun lliiiiihert iiuU ??au.ssiire. Kcviic ct May. ZouL, 155, 18(i9 (ohiiccun). 



Eyes triangular, elliptical or trapezoidal; oeelli numerous, not ar- 

 ranged in more than ten series. Anteiinie subtiliform, scarcely subcla- 

 vate, second jointlongest. Mandibulary combs, 1)-10. Gn.^thocliilarium 

 scarcely subspatulate; stipes not separated; nientum bip irtite. almost 

 hidden; lingual jtlate separated; lingual lobes denticulaced. Number 

 of segments uncertain, 40-70; sides striate. Last segment more or less 

 inoduced into a spine; anal scab; triangular or somewhat rounded. 

 Ilepugnatorial pore beginning on the sixth segment, placed in the 

 posterior part. Third segment ai)()dous. Feet equaling the width of 

 body, seventh joint longer than third; second i)air of fet't very strongly 

 stunted or dwarfed. Male: First pair of legs enlarged, six jointed, the 

 fimrth largest. 



To this genus have been referred our larger species of so-called Jiilns; 

 from the latter genus it is easily separated by the number of man- 

 dibulary combs, by the second pair of legs, and tlie tirst pair of the 

 male. 



This genus is divisible into the following subgenera: 



*Male: Pnmi<*ntmii very large, ovate, nairowiiijn the lingual ]»lates; lirst segment 

 enlarged, sides very broad, almost subriuadrate; first pair of feet very large, 

 crassate, curving inwards and erossing each other, armed with numerous tuber- 

 cles on the inner side, moderately pilose P.xka.ulus i. 



** Promentum and first segment same size in both sexes; first pair of feet of male 

 small, stumpy, crassate and straight, tubercles absent, sparsely pilose. 



PsKUDO.iui.rs. subgen.nov. ir. 



Subgenus Farajulufi. 



11. Parajulua impressus ("Say). 



Jiihis impressus Say, Jour. Acad. Nat. Sci., Phila., 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 ea(di side of 

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

 erately slender, not pilo.se or smooth. Vertex witli a median sulcus, 

 setigerous foveohe present. Antenuiv long and slender, equal to the 

 width of the body, moderately piU)sc. Eyes distinct, triangular, the 



