178 Mr. R. I. Pocock on new Genera and 



Genus PSALMOPCEUS, iiov. 

 Psalmopceus Camhridgii*^ sp. n. (PL X. figs. 3-3 J.) 



$ . Colour (possibly faded) : upperside of trunk and limbs 

 clothed with greyish-yellow hairs ; the lines on the limbs 

 with whitish hairs ; a reddish-yellow pad on the upperside 

 of the tarsi and a stripe of the same colour on the protarsi ; 

 lower surface of carapace and coxas chocolate-brown ; the 

 long fringes on the appendages yellowish red ; the fringe on 

 the mandible and maxillae blood-red ; the upperside of the 

 abdomen marked with a darker median band. 



Carapace moderately high in front, a little longer than 

 wide, the radiating grooves strongish ; \\).q fovea strong, deep, 

 transverse, a little narrower than the tubercle ; tubercle large, 

 wide, projecting slightly beyond the anterior border, which 

 is thus convex at this spot ; distance between front edge of 

 tubercle and median eye about equal to diameter of latter. 

 Eyes of front row about straight, equidistant, median the 

 largest and separated by a space which is less than their 

 diameter; posterior lateral a little smaller than anterior 

 lateral ; length of carapace a little less than that of patella 

 and tibia of fourth leg, width equal to length of protarsus and 

 half tlie tarsus of tlie same leg. 



iSternum oval, noticeably longer tlian wide, equally wide 

 between the coxae of the legs of the second and third pairs ; 

 distance between the posterior impressions less than the width 

 of the tubercle, equal to that of tlie fovea, and greater than 

 that of the labium. Labium as long as wide, parallel-sided, 

 densely spinulose, separated from the sternum by a very deep 

 smooth groove. 



Mandible with a well-developed external velvety pad of 

 long simple hairs, naked below, the strikers consisting of a 

 small number of apically filiform spiniform set£e arranged on 

 the lower edge behind the red fringe ; the margin granular 

 behind, armed internally with eleven large teeth. 



Maxilla scantily clothed with sette below the suture ; the 

 keys composed of a single curved row of fourteen stout rods; 

 proximally these rods are short and stout, but distally they 

 become gradually longer, thinner, and more club-shaped, and 

 ultimately pass into the hairs of the thick fringe, each is 

 tipped with a minute hair. 



Faljj with its trochanter and base of femur furnished 

 externally and internally with a scopula of short brown hairs. 



Legs long, the first pair the longest, the second as long as 

 the fourth, unarmed except for a few small spines at the 

 apices of the tibiae ; the tibiae, protarsi, and tarsi furnished 



* In lionoi'eui amici niei, F. 0. P. Cambridge. 



