686 FAUNA HAWAITENSIS 



Head shining, microscopically rugulose, first flagellar joint of antennae longer than 

 the second. Mesonotum dull, densely and minutely punctate or shagreened; propodeum 

 with a delicate median carina in front, the surface finely shagreened, the petiolar area 

 defined, very narrow, but dilated or somewhat diamond-shaped anteriorly. Petiole long 

 and very narrow, many times as long as wide, dull, densely and finely shagreened, its 

 upper edge in profile well curved ; rest of abdomen polished and smooth. Length 

 2 '5 mm. I have not seen the female. 



Hab. Oahu, Honolulu, introduced, without doubt. 



