59 



Anchocelis lunosa. From C. H. Walker. 



Harpe peaked and pointed, without corona ; cucullus not 

 divided; clasper spined at the tip; ampulla produced 

 from the base of the cucullus in a flap ; clavus rounded ; 

 uncus broad, rounded at the tip ; vesica with longish 

 cornutus and bunch of teeth ; juxta doubly peaked. 



Ruftna. 



Harpe peaked, with corona ; cucullus not divided ; clasper 

 long and slender ; ampulla flattened, with curled tip ; 

 uncus strong, produced from a curious termination of the 

 tegumen ; with a scaphium ; vesica with long cornutus ; 

 juxta not cleft. 



Litura. 



Harpe with part corona ; clasper short and curved ; 

 ampulla extends to the anal angle in a series of folds of 

 the skin ; clavus produced and peaked, spinose ; from the 

 head of the tegumen arises a square flap, from the centre 

 of which springs a short slender uncus ; vesica with band 

 of teeth and long cornutus. 



Pistaeina. Pencils present. 



Harpe without corona ; cucullus lobed, the anal angle 

 uniting with the ampulla forms a strong pointed arm ; 

 clasper long and bent into a pot-hook ; uncus curved and 

 pointed ; aedceagus serrated at the orifice ; juxta indented 

 at the top. 



The Cerastias are generically a continuation of 

 the preceding, and should include rubiginea. Vaccinii and 

 spadicea, often a stumbling block for the beginner, are 

 equally difficult to separate by the genitalia. 



Cerastis vaccinii. 



Harpe long, slender and pointed, without corona ; clasper 

 long, slender and twisted ; uncus flattened at the tip ; 

 vesica has a long cornutus at the base, a bunch of cornuti 

 in the centre, and a bulbed cornutus above ; juxta peaked, 

 indented at the tip. 



