618 PROCEEDINOS OF THE NATIONAL MUSEUM. vol.46. 



liind tibiae longer than femora; calcar small, marginal dentation 

 indistinct. Abdomen short, carinate along median dorsal line. 



Male pygofers short, more or less covered dorsally by pre-anal 

 segment; aperture irregular in outline, somewhat triangular, ventral 

 notch sUght; styles short, slender, approximate at base, divergent 

 apically, acute at apex; anal tube short. 



Redescribed from two males from Chicopee, Massachusetts, one 

 male from Alinnesota, one female from Canada, and one male from 

 Colorado (Baker). 



MEGAMELUS ROTUNDATUS, new species. 

 Plate 48, figs. T, U. 



Average length of body 2.3 mm.; width of vertex 0.18; width of 

 frons 0.21; antennae, I, 0.10, II, 0.19. General color soiled whitish 

 on head, pronotum and scuteUum; abdomen dark brown except 

 rufous dorsad on middle of last three segments and pygofers ; pleurae 

 and metanotum brown; legs, antennae and venter of thorax light to 

 whitish. 



Head almost as broad as prothorax, somewhat roundly produced 

 between eyes, indistinctly carinate at apex; vertex moderately broad, 

 sides straight; frons at least twice as long as broad, narrowed above, 

 broadest (about one-haK broader than base) at apex, not strongly 

 carinate; antennae reaching a Httle beyond clypeus, I half as long as 

 II. Pronotum moderately long, broadly emarginate behind. Elytra 

 subhyaUne, not reaching to tip of abdomen. Legs rather slender, 

 hind tibiae a httle longer than femora; calcar rather thin, large, 

 margin distinctly dentate. 



Male pygofers rather long, horizontal; aperture irregularly circular 

 or nearly so; styles broad, constricted midway, somewhat divergent, 

 apex broad, spatulate, arcuate, square at tip; anal tube large, without 

 processes, subhorizontal. 



Described from one brachypterous male from Alabama (Baker). 



Type-specimen. — Cat. No. 15987, U. S. Nat. Mus. 



MEGAMELUS TEAP^ Fowler. 

 Plate 49, fig. E. 

 Liburnia teapss Fowler '81:155. — Van Duzee '07:46. 



Average length 2.4 mm.; width of vertex 0.17; width of frons 0.20; 

 antennae, I, 0.09, II, 0.19. General color glossy black to dark brown 

 over entire body surface; genaepale; antennae and legs yellow; elytra 

 black, except anterior corner of corium and anterior third of mem- 

 brane yellow to hyaUne. 



Head short, narrower than prothorax, rather weakly carinate; 

 vertex short; frons rather long, sides almost straight, rectihnear, 

 more than twice as long as broad, rather weakly carinate; antennae 

 reaching to clypeus, I about haK as long as II. Dorsum weakly cari- 



