4 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



description in being dark brown. However, the antennae in 

 this species are very slightly longer than the pronotum and are 

 certainly nowhere near half the length of the body. On the 

 other hand, the west coast species which I consider the true 

 physoderus of Germar is not as dark brown as the east coast 



..mett it. 



...mfif. lob. 

 ..ined. or 



yen 



fret] 



dor sa ( 



Fig. 1. Dorsal and ventral aspects of the male genital apparatus of 

 Pyrophorus. 



species and the antennae of the male are equal to fully one-half 

 the total length of the body. 



The east coast species, which I have named Pyrophorus at- 

 lanticus, is entirely lacking the impressed grooves on the disk of 

 the pronotum, which Germar specifically mentions and which 

 are very pronounced in the species from the Cedar Keys. Both 

 of these Florida species lack the basal tubercle on the pronotum. 



