130 CALIFORNIA ACADEMY OF SCIENCES. 



fuscous transverse bands separated by broad pale 

 sutural bands; darkening laterally to form broad dark 

 lateral bands, set off by rather broad pale submarginal, 

 longitudinal bands; last segment flatly rounding, with 

 a fringe of fine hairs; ventral surface with similar 

 markings, but with an irregular median transverse 

 series of hairs, besides the series on the posterior margin 

 of the segment. 



Male. Body, length 1.43 mm,, width .75 mm.; head, 

 length .28 mm., width .56 mm., thus being much 

 smaller than the female; also of short, broad, oval 

 shape rather than elongate and narrow; darker and 

 more evenly fuscous; pale submarginal longitudinal 

 bands parallel with the sides of the abdomen less dis- 

 tinct than in female; transverse bands narrow and less 

 definite; lateral blotches narrow and darker on the 

 posterior margin of the segments; last segment slightly 

 angular, with a fringe of hairs; genitalia faintly distin- 

 guishable through the body, extending forward into 

 segment 7. 



Menopon incertum Kellogg. 



New Mallophaga, II, 1896, p. 533, pi. Ixsiii, flg. 2. 



Many specimens from a Russet-backed Thrush, Tur- 

 dus ustulatus (Palo Alto, California); a Western Lark 

 Sparrow, Chondestes grammacus strigatus (Ontario, Cali- 

 fornia) ; and a Vigor's Wren, Thryothorus bewickii spi- 

 lurus (Palo Alto, California). Taken previously by 

 Kellogg from Turdun ustulatus and from the American 

 Goldfinch, Spinus tristis (same localit}^). 



Menopon maestum n. sp. (Plate IX, fig. 2). 



Two specimens from a Golden-crowned Sparrow, 

 Zonotrichia coronata (Palo Alto, California), and a 



