48 PROCEEDINGS OF THE NATIONAL MUSEUjNI vol. 86 



First segment large, embracing the head; with a fine transverse sulcus 

 subparallel to the anterior margin and some distance from it ; a sec- 

 ond, submedian, sulcus present. Ensuing segments constricted to 

 segment 6. Segments smooth, the dorsum a little depressed, with a 

 weak longitudinal depression each side of middle, leaving mesial 

 portion a little elevated. Since it was stated that the genus is closely 

 related to NannoJene, being distinguished from it by the lack of 

 eyes, it is assumed that the pores begin on segment 6. Last segment 

 with a depression in front of the apex. Claws long and slender. 



This genus may be intermediate in position between Nannolene 

 and Plafydere, because it is thought that pores begin on segment 6 

 as in the former genus, and it is without eyes as in the latter genus. 

 From both it differs in having a necklike constriction behind the 

 head, and the dorsum slightly depressed on either side of a slight 

 median elevation. There is but one species. 



BUWATLA. MONTEREA Chamberlin 



Bmmtia mouterea Chamberlin, Ann. Ent. Soc. Amer., vol. 5, p. 159, pi. 10, 

 fig. 7, 1912. 



Described from a single specimen, apparently a female, found at 

 Pacific Grove. Calif. The species has not since been reported. 



PLATYDERE, new genus 



Type. — Platydeve caeca., new species, from southern California. 



Diagnosh. — Closely related to Nannolenes as shown by the smooth 

 segments, the inconspicuous constriction of the neck segments, the 

 row of deep pits in the transverse constriction of the segments, and 

 by the rimmed pores. It differs, however, in being without eyes, 

 in having the first pores on segment 5, and in having four or possibly 

 six apical setae on the last segment, the lateral margin of which is 

 deeply emarginate in front of the processes covering the lateral 

 angles of the scale. 



Description. — Body stout, about 16 times as long as broad; with 

 scarcely any constriction of segments 2 to 4 to form a neck; surface 

 appearing very smooth and strongly shining. 



Head without a median sulcus or transverse impressed lines as in 

 Nannolene; eyes lacking. Antennae inserted on the dorsolateral sur- 

 face; moderately clavate; joint 2 shorter than joint 3, which is 

 slightly longer than any of the others; joints 4 and 6 subcqual, 

 shorter than joint 5, which is the Avidest joint. Clypeus with sides 

 almost continuous with the labrum but with middle abruptly raised 



