219. N. havilœm Grt. — I confused this with the foregoing species until quite recently, so cannot state positively whether it is common or not. From memory I should say at least not rare. I picked four out of my series of twenty-five clandestina and sent two to Prof. Smith as possibly havilœ, but questioned their distinctness. He called them havilœ, and added, “The differences seem obvious enough in my Collection. It has the ground colour of primaries lighte, has a peculiar strigate appearance, and lacks all the red-brown that occurs in clandestina.”