FAUNA OF PENIKESE ISLAND. 33 



Psilopa atrimana Coquillett. 

 P. flavida Coquillett. 

 Scatella dichata Loew. 



Borborinae. 



Leptocera atra Adams. Common and widespread. 



Leptocera brachystoma Stenhammar. This species does not 

 seem to have been recorded as American. It is common 

 under eel-grass at high tide level at least throughout the 

 Woods Hole region. I have compared my specimens with 

 British material determined by J. E. Collin, Esq. 



Leptocera lutosa Stenhammar. Common and widespread. 



Borborus geniculatus Macquart. 



Phycodrominse. 



Ccdopa parvula Haliday. 



Coleoptera. 



(Identification by C. W. Johnson, Boston Society 

 of Natural History.) 



Carabidse. 



Galerita janus Fabr. 

 Chlcenius pennsylvanicus Say. 

 Harpalus caliginosus Fabr. 

 Harpalus compar Lee. 

 Harpalus pennsylvanicus DeGeer. 

 Harpalus herbivagus Say. 



Staphylinidse. 



Ocypus ater Grav. 



Silphidae. 



Necrophorus americanus Oliv. 

 Necrophorus marginatus Fabr. 

 Silpha lapponica Hbst. 



Histeridae. 

 Saprinus sp. 



Cantharidae. 



Silis bidentatiis Say. 



Mordellidae. 



Mordellistena pustulata Melsh. 



