48 The Cra^pedosomalidse of North America. 



ventral face there is a deep groove, and some distance below the apex a broad 

 lateral emargination. Near the base of the posterior arm are a fcAv long bris- 

 tles. Posterior arm abruptly capitate, laterally Avith a rounded projection 

 above. 



Ninth legs of male (fig. 127) -with basal joint broadly emarginate on the 

 ventral side, very i)rominent above, sometimes truncate; without tubercle. 

 Second joint three times as long as broad, the line of the ventral side being 

 gently curved, not with a sharp turn at the greatest diameter. Distal joints 

 rather stout, Avith a similar ridge across the anterior side as described for C. 

 csesioannulaia. Claw rather small. 



Color horn-brown, mottled with pinkish white. Head dark brown, es- 

 pecially the vertex, more or less mottled with white in fine points arranged 

 in irregular areas, with more or less bilateral symmetry. Lower part of 

 clypeus nearly Avhite. Margin of labrum transparent yellowish. 



Segments with exposed portion dark brown above, dirty-white below. An- 

 terior subsegment pale, except where exposed. A pale transvei'se line is usu- 

 ally present along the suture between the subsegments; dorsally the suture is 

 especiallj'- on anterior segments, sinuate, and sometimes the lighter color runs 

 back on the median line. The six setae of each segment are located in light 

 spots, and between the outer pairs of setse there is a large transverse area 

 coarsely mottled, bounded in front and behind by a dark line. Tlie posterior 

 line is extended below the outer seta and is broader, so that the animal ap- 

 pears to have a row of lateral spots. Below the spots the color rapidly fades 

 to yellowish white. On posterior segments the dark color of the dorsum 

 is darker than on the anterior, the lighter spots smaller, but more vivid. 



Legs with basal joints dirty white, the distal dark brown. 



Antennae very dark, except a short pale ring at the base of each joint. 



Length of mature males 18-20 mm., width 2.2-2.4 mm. ; length of females 

 20-24 mm., width 2 mm. 



Habitat: Washington, D. C. Nine mature specimens, including 

 three males, were collected among leaves on a wooded hillside in 

 the Zoological Park, Washington, D. C, October, 1894. 



This species, from its great size, seems likely to have been the 

 original of csesioannidata^ and may be taken as the tjq^e of the 

 genus Cleidogona. It also seems more related to the species iden- 

 tified b}-- McNeill as csesioannulata than do the three following 

 species. It is possible that this species is among those reported 

 as Campodes jlavicornis, but we did not recognize it among the 

 specimens from the National Museum. 



Cleidogona lamiiiata sp. n. 



Plate IX, figures 164-171. 

 Eyes as in C major, ocelli of the same number, arranged in transverse row : 



8+6+5+4+3+2-t-l. 



