244 CALIFORNIA ACADEMY OF SCIENCES. 



Emblethis arenarius Linn. A specimen is in the 

 collection from San Jose del Cabo, and some others from 

 the Calmalli mines. 



Peritrechus fraternus Uhler. This species was 

 found near Cape St. Lucas by Mr. John Xanthus. 



Eremocoris ferus Say. One specimen was collected 

 at San Jose del Cabo by Dr. Gustav Eisen. Others were 

 found near Cape St. Lucas by Mr. John Xanthus. 



Megalonotus unus Say. A single specimen of this 

 obscure species was secured near Cape St. Lucas by 

 Mr. John Xanthus. 



MiCROTOMA carbonaria Rossi. This European spe- 

 cies is now known to be widely dis4;ributed on both sides 

 of North America. It occurs in Massachusetts and ex- 

 tends from thence to Florida. On the western side it is 

 found in Colorado, near Denver, and from that point 

 southwest, at various stations, to Arizona, California and 

 Lower California. It was also collected at El Paraiso by 

 Dr. Gustav Eisen. 



Phygadicus behrensii Uhler. Specimens were se- 

 cured near Cape St. Lucas by Mr. John Xanthus. It 

 was also found at the same place by Dr. Gustav Eisen. 



Peliopelta abbreviata Uhler. A few specimens 

 were secured at Cape St. Lucas by Mr. John Xanthus. 



Crophius disconotus Say. This species was taken 

 at Cape St. Lucas and at San Jose del Cabo. 



Melanocoryphus bicrucis Say. Found at San Jose- 

 del Cabo and elsewhere in Lower California. 



Melanocoryphus rubicollis n. sp. 

 Dull black, broad, becoming gradually more narrow 

 anteriorly ; the collum both above and below, the thick 



