508 CALIFORNIA ACADEMY OF SCIENCES. 



of the abdomen distinctly pass the suture in my mature 

 specimen; Piaget says that the bands do not pass the 

 sutures. 



The species may be recognized by its general similarity in 

 form and appearance to Lipeurus docophoroides Piaget, of 

 the California Quail (see pi. lxviii, fig. 8) . Dissimilis differs 

 from docophoroides in having the head more rounded in 

 front, the abdomen longer and broader, and in the ab- 

 sence of pustulations at the bases of the hairs. My 

 specimen (mature) measures: Body, length 2.4 mm., 

 width 1.03 mm.; head, length .6 mm., width .53 mm. 



Lipeurus docophoroides Piaget. (Plate lxviii, fig. 8.) 



Les Pediculiiies, 1880, p. 357, pi. xxviii, fig. 9. 



Two female specimens of this striking Lipeurus, taken 

 from a California Partridge, Callipcpla calif arnica (Moun- 

 tain View, California). Piaget found his specimens on 

 individuals of the same bird species in the Zoological 

 Garden of Rotterdam. The species is a transition form 

 between Docophorus and Lipeurus. Piaget says of it : 

 " La forme du thorax, des pattes en general et de l'abdo- 

 men, la presence des trabecules indiquent une transition 

 au genre Dacapharus; l'antenne, la fossette, l'implanta- 

 tion du coxis au bord du thorax, l'etranglement du meta- 

 thorax, la forme du dernier segment £ attachent cette 

 espece aux Lipcuri." 



The species may be recognized by its pointed conical 

 head, with black and dark brown bands and markings, 

 by its Docophoroid body, with distinct black lateral bands 

 on thorax and abdomen, and by its whitish ground color 

 and dark chestnut brown transverse lateral blotches, with 

 pustulated hairs and large uncolored stigmatal areas. The 

 specimen figured by me measures: Body, length 1.93 

 mm., width .78 mm.; head, length .56 mm., width .51 

 mm. 



