OF ARTS AND SCIENCES. 45 



Laboulbenia NEBRiiE, Peyr. 



This well marked form can hardly be confused with any other 

 described species, and is very common on Nebria pallipes in Con- 

 necticut, covering all parts of the host with a furry mass of indi- 

 viduals. It was accidentally omitted from my previous note, though 

 incidentally referred to. 



Laboulbenia truncata, Thaxter. 



Additional material of this species shows that in perfect and 

 mature specimens the inner pseudoparaphysis develops a long 

 branch, which extends nearly at right angles to the axis of the 

 perithecium, and to a considerable distance beyond it, thus pre- 

 senting a very characteristic appearance. The species has been 

 received on various species of Bembidium from Virginia (Pergande) 

 and Washington (Miss Parker). 



