NO. 2041. THE INSECT FAMILY DELPHACIDAE— CRAWFORD. 609 



MEGAMELUS NOTULUS Gennar. 



Plate 46, fig. B; plate 47, figs. H-J. 



Delphax notulus Germar ^30 : 57. 



Liburnia notula Edwards '86 : 62; '96 : 38.— Scott '71 : 25. 



Megamelus notulus Van Duzee '97 : 233. — Oshanin '07 : 300 (complete bib- 

 liography). 

 Delphax iruncatipennis Boheman. 

 Delphax lineola StAl. 



Length of body, 2.7 mm.; width of vertex, 0.18; width of frons, 

 0.20; antennse I, 0.19, II, 0.32. General color dark brown to brown; 

 vertex, pronotiim, and scutellum between carinse lighter than outside 

 of carinas; frons blotched; legs and venter lighter brown; abdomen 

 lighter on median dorsal half. 



Head narrow; vertex rather rectangular, distinctly longer than 

 broad, strongly carinate; median carina of frons prominent on apex 

 of head; frons narrowed above, about two-thirds as broad above as 

 below; clypeus not strongly carinate; antennas nearly as long as 

 frons, I more than half as long as II, II thick. Scutellum a little 

 longer than pronotum; legs stout; hind tibire a little longer than 

 femora; calcar large, more than half as long as basal tarsus. Elytra 

 (macropterous) somewhat smoky. Abdomen broad. 



Male pygofers rounded caudad, with ventral fossa deep; anal tube 

 not dorsal, rather large; genital styles short, inconspicuous, cultrate, 

 blunt at tip, finely serrate on inner margin; not visible in profile 

 (what appears to be the styles in the figure is one of the ventral 

 processes within the fossae) . 



Redescribed from one brachopterous pair from England and one 

 macropterous female from Winchendon, Massachusetts. Reported 

 from Ontario, Canada, New York, and New Hampshire. 



MEGAMELUS NOTULUS FLA VUS, new variety. 



Similar to species in form and size; lighter in color, less blotched, 

 median dorsal area of abdomen lighter relatively. Male pygofers 

 very broad and thick transversely, more swollen laterad than in 

 species; genital styles larger, rather prominent; anal tube larger, 

 ventral process longer. 



Described from three males and nine females, all brachyopterous, 

 from Colorado (Baker). 



Type-specimen.— C&t. No. 15982, U.S.N.M. 



MEGAMELUS MARGINATUS, Van Duzee. 

 Plate 47, fig. Q. 

 Megamelus marginatus Van Duzee '97 : 234; '08 : 197. 



Length of body, 3.2 mm.; width of vertex, 0.20; width of frons, 

 0.26; antennae I, 0.08, II, 0.18. General color w^hitish to yellowish 

 brown, usually the former; frontal carinas margined with black or 

 brown; pleurae tinged with brown. Body rather long. 

 95278°— Proc.N.M.vol.46— 13 39 



