COLEOPTERA OF BAJA CALIFORNIA. 445 



than wide to slightly wider than long, slightly wider at 

 base than apex, sides feebly arcuate. Elytra oblong-oval, 

 nearl}^ twice as long as wide, base equaling the base of 

 the thorax, disc finely striate, stv'ise finely closely punc- 

 tate, intervals feebly convex. Body beneath less densely 

 clothed than above. Legs scaly. Length, .14-. 19 inch; 



3-5-4-75 mm. 



This species varies to such an extent that with a few 

 selected specimens it might be divided into three species. 

 The first variety has on each elytron behind the base an 

 oval brown-black spot variable in size, at the declivity a 

 crescentic fascia of similar color, and near the apex an 

 oval spot. 



In this form the cinereous scales of the surface have 

 numerous brown ones intermixed. 



In the second form the sub-basal spots are small, the 

 crescentic fascia is reduced to a small spot on each side 

 and the apical spot is minute. 



The third variety has the spots so small that they might 

 be mistaken for accidental abrasions. 



Specimens are before me with the post-basal spots alone 

 present, others again with these absent and the two pos- 

 terior spots present and very small. 



Coral de Piedra, Sierra El Chinche and San Jose del 

 Cabo. 



POLYDROSUS PENINSULARIS U. sp. 



Form nearly of doi'salis, clothed with cinereous scales, 

 the elytra with a sinuous fascia of darker color at the 

 declivity, variable in width and color. Antennte pale, 

 the club darker, scape joint longer than the hind margin 

 of the eye. Head with some blackish scales. Thorax 

 ■not longer than wide, slightly narrower in front, sides 

 very feebly arcuate, disc covered with intermixed darker 



