NO.L'04l. THE INSECT FAMILY DELPHACIDAE— CRAWFORD. 625 



lightest. Male genital styles more slender, not broad and truncate 

 at tip but with a small tooth on inner margin near apex, giving the 

 appearance of being slightly bifurcate. 



Described from two males and one female from Acapulco, Mexico 

 (Baker), one male from Jalapa, Mexico (Crawford), and one pair 

 from Habana, Cuba (Baker). 



Type-specimen.— C&t. No. 15993, U.S.N.M 



MEGAMELUS ERECTUS NIGRIPENNIS, new variety. 



Similar to species, except elytra (brachypterous) black, glossy, 

 reaching to tip of abdomen, pale at extreme base; thorax yellowish; 

 male genitalia similar, styles relatively a little stouter, apex some- 

 what rounded. 



Described from one brachypterous male from Managua, Nicaragua 

 (Baker). The specimen bears a label "21. nigripennis Mel.," appar- 

 ently a manuscript name. 



Type-specimen. — In collection of Pomona College. 



MEGAMELUS PUELLIS Van Duzee. 



Plate 47, fig. K. 

 LiburniapuellaYAS Duzee '97:250; 'ft9:202.— Osborn '97:235; '00:65. 



Average length of body 2.2 mm.; width of vertex 0.15; width of 

 frons 0.21; antennae, I, 0.09, II, 0.20. General color black to brown; 

 carinsB of head and pronotum white or pale; frons usually black 

 between carinse, sometimes brow^n or light brown; tip of scutellum 

 and connexivum white; antennae and legs light brown to yellowish; 

 femora more or less brown; elytra transparent, with a brown spot at 

 tip of clavus ; body rather slender. 



Similar in aspect to M. pellucida, but body more slender; frons nar- 

 row, more than twice as long as broad, sides nearly straight; antennae 

 reaching to clypeus, I nearly half as long as II; legs slender; hind 

 tibiae a little longer than femora; calcar thin, not as long as basal 

 tarsus, margin finely dentate, black. Elytra similar to pellucida. 



Male genital segment similar to M. consimilis; genital styles not 

 simple, broadened at tip or with a tooth on inner margin near tip; 

 with a process at base between styles. 



Redescribed from about 40 specimens of both sexes from Penn- 

 sylvania (Wirtner, Klages) ; Massachusetts; Maryland ; Illinois (Knab) ; 

 Mississippi (Weed); Louisiana; Alabama; Habana; Cuba (Baker); 

 Jalapa, Mexico (Crawford); and one male from Para, Brazil (Baker). 

 The latter differs slightly in the shape of the genital styles, the inner 

 tooth being longer and more acute than usual, but it seems to belong 

 to this species nevertheless. 



95278°— Proc.N.M.Tol.46— 13 40 



