204 Journal of the Mitchell Society [May 



Megamelus uncus n. sp. 



Figs. 410, 411, 651 



This species may be recognized by its general pale yellow color 

 with the lateral borders of the abdomen broadly black and distinct 

 male genitalia. 



Vertex narrow, produced; frons rather broad, narrow between 

 the eyes first segment of the antenna about two-thirds as long as the 

 second ; pronotum shorter than the vertex ; the intermediate caringe 

 not strongly divergent ; mesonotum longer than the pronotum ; ealcar 

 about half as long as the basal segment of the tarsus; male pygofer 

 broad, the genital plates narrow, triangular; genital styles about as 

 long as the plates; genital hooks elongate, strongly recurved; anal 

 processes two. 



Color : General color pale yellow ; eyes black ; metapleura with a 

 large black spot; tarsus spines black; lateral border of the abdomen, 

 the pygofer and most of the venter black. 



Length, apex of head to apex of abdomen 2.40 mm. 



Holotype S . Ellis Bay, Anticosti, Quebec, August 29. In the 

 collection of the Museum of Comparative Zoology. 



Allotype 9 . Ellis Bay, Anticosti, Quebec, August 29. In the col- 

 lection of the Museum of Comparative Zoology. 



This is another species that might easily be confused with Me- 

 gamelus notnlus Germar; the male genitalia, however, are very dis- 

 tinct. 



Megamelus anticostus n. sp. 



Figs. 412, 652 



This species may be recognized by the evident pale dorsal vitta 

 and distinct male genitalia. 



Vertex broad, not much produced ; frons broad, not narrowed be- 

 tween the eyes; first segment of the antennae about half as long as 

 the second ; pronotum about as long as the vertex ; the intermediate 

 carinae somewhat divergent ; mesonotum longer than the pronotum ; 

 ealcar about half as long as the ba.sal segment of the tarsus ; pygofer 

 of the male broad, not inflated; genital plates narrow, ligulate, 

 broadly separated; genital styles short; their apices bent at right 

 angles; genital hooks elongate, broad and obtuse; anal segments two. 

 spine-like. 



