614 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



Redescribed from nine females from Nicaragua — San Marcos, 

 Granada, and Chinandega (Baker). It is possible that the male of 

 this species will show it to be distinct from the oriental species to 

 which I have referred it. Melichar considers it the same species. 



MEGAMELUS CAYAMENSIS, new species. 

 Plate 49, iig. C. 



Length of body 2.3 mm.; width of vertex 0.23; width of frons 

 0.26; antemise, I, 0.09, II, 0.22. General color brown, with broad 

 white vitta along median carina of pronotum and scutellnm; elytra 

 brown on posterior half of membrane and tip of corium. Body 

 moderately small. 



Head fully as broad as pro thorax, weakly carinate; vertex about 

 square, moderately broad; carinas evanescent at apex; frons rectan- 

 gular, not strongly carinate; antennae reaching fully to clypeus; eyes 

 large. Lateral carinas of pronotum flexed out behind eyes. Elytra 

 long, slender. Legs typical. 



Male aperture of pygofers rather circular; anal tube large; styles 

 arched, constricted midway, broadened and rounded at apex. 



Described from one male from Cayamas, Cuba (Baker). 



Type-specimen. — In collection of Pomona College. 



MEGAMELUS KORMUSI, new species. 



Very similar in size and general color and appearance to M. magni- 

 frons, differing chiefly in the male genitaha, which resemble more 

 M. magna. Margin of pygofer aperture less sinuate, lateral protuber- 

 ances less marked, more rounded; styles not black, apex bifurcate, 

 points rather acute; anal tube with two very long processes ventraUy, 

 reaching almost to tip of styles. 



Described from one brachypterous pair from Ormsby County, 

 Nevada (Baker). This species is very closely related to M. magna, 

 and to M. magnifrons, but seems to be quite distinct from both in the 

 male genitalia. 



Type-specimen. — In collection of Pomona College. 



MEGAMELUS MAGNIFRONS, new species. 

 Plate 48, figs. J, O. 



Length of body 3.2 mm.; width of vertex 0.36; width of frons 

 0.40; antennae, I, 0.10, II, 0.26. General color soiled yeUow, with 

 longitudinal brown markings on dorsum of abdomen; frontal carinas 

 narrowly margined with brown; pronoium with a brown spot on 

 lateral margin; venter somewhat browned. Body large, robust. 



Head about as broad as pro thorax, rather weakly carinate; vertex 

 broader than long, rounded in front, carinas almost obsolete at apex 

 of head; frons broadest above, sides not arcuate, considerably longer 



