BULLETIN. |u«B_B^^P'^ 7 



No. 5. ''•>^^^TT^^^^<^ 



California Academy of Sciences. 



Revision of the Californian Species of LITHOCHARIS 

 and Allied Genera. 



BY THOS. L. CASEY. 

 Read Jan. 4th, 1886. 



The species assignable to Lithocliaris and allied genera are 

 extremely abundant in California and are also very numer- 

 ous individually, so that a review of the forms occurring 

 here, although not so desirable as a general revision of the 

 North American species, is, at the same time, amply suffi- 

 cient to form a systematic basis upon which to found such 

 an extended work, and probably loses little of what impor- 

 tance it may possess from the omission of species occurring 

 east of the Kocky Mountains, as these are comparatively 

 few in number and not as yet sufficiently collected. 



Belonging to the region here considered, there are de- 

 scribed below twenty-five species, most of which are rather 

 local in habitat, although a few have an extended range. In 

 regard to their favorite haunts, little is to be said; they fre- 

 quent the margins of ponds and water-courses, and are found 

 amongst decaying vegetable matter, roots of grasses, etc., 

 in stony localities, although more abundant in the deep ra- 

 vines so characteristic of the Coast Mountains. I have 

 occasionally found particular spots of very limited extent in 



1— Bull. Cal. Acad. Sci. II. 5, Printed January 27, 1886, 



