52 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



Yomig examples differ from the adults as follows : 



.teous in PAKAJUL.US Humbert and Saussure. 



Parqjiiliix Humbert :ind Saussure, Revue et Mag. Zool., 155, 1869 (olmecus). 



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

 ranged in more than ten series. Antenna} subfiliform, scarcely subcla- 

 vate, second joiutlongest. Mandibulary combs, 9-10. Gnathochilariuin 

 scarcely subspatulate; stipes not separated; mentum bipartite, almost 

 liiddeu; lingual plate separated; lingual lobes denticulated. Number 

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

 produced into a spine; anal scale triangular or somewhat rounded. 

 1 \epugnatorial pore beginning on the sixth segment, placed in the 

 posterior part. Third segment apodous. Feet equaling the width of 

 body, seventh joint longer than third ; second pair of feet very strongly 

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

 fourth largest. 



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

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

 dibulary combs, by the second pair of legs, and the first pair of the 

 male. 



This genus is divisible into the following subgenera: 



* Mule : Promentum very large, ovate, narrowing the lingual plates; first segment 

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

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

 cles on the inner side, moderately pilose : PARA.JULUS 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. 



PsKuno.iui.rs, subgen. nov. n. 



Subgenus Para) nln*. 



11. Parajulns impressus (Say). 



Jtilun imprewux Say, Jour. Acad. Nat. Sci., 1'hila., 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 ynile spots on each side of 

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

 erately slender, not pilose or smooth. Vertex with a median sulcus, 

 setigerous foveolie present. Antenn;e long and slender, equal to the 

 width of the body, moderately pilose. Eyes distinct, triangular, the 



