612 PROCEEDIYGS OF THE NATIONAL MUSEUM. vol.46. 



Described from one macropterous male collected in Banner, Wyo- 

 ming, by C. W. Metz, for whom the species is named. This resembles 

 more or less certain species of Dicranotropis, and possibly additional 

 material will show that it should be included with that genus instead 

 of Megamelus. 



Type-specimen. — In collection of Pomona College. 



MEGAMELUS BIFURCATUS, new species. 

 Plate 47, fig. S. 



Length of body, 2.2 mm.; width of vertex, 0.19; width of frons, 

 0.24; antennae, I 0.08, II 0.20. General color light brown or yellow- 

 ish browTi throughout, with a lighter vitta on median portion of 

 notum; elytra brownish. Body rather small. 



Head almost as broad as prothorax; vertex almost rectangular, 

 moderately broad, longer than broad, not strongly carinate; frontal 

 carmse indistinct on apex of head, though not greatlv so; frons nar- 

 rowed above distinctly; antennae not as long as frons, I scarcely half 

 as long as II. Thorax not broad; legs slender; hind tibiae a little 

 longer than femora; calcar more than half as long as basal tarsus, 

 margin finely dentate. Elytra rather short, narrow. 



Male pygof ers unique ; ventral pygof ers produced laterally on each 

 side into a slender process, bifid at apex; dorsal pygof er spatulate, 

 apex broadly romided, extending beyond and much outside of ventral 

 plate; genital styles long, sinuate, bifid at tip; anal tube large, apical, 

 and slightly subdorsal. 



Described from seven macropterous males and one female from 

 Para, Brazil (Baker) . The genitalia of this species are very remark- 

 able, and in some other respects also it differs from the typical Mega- 

 melus species. 



Type-specimen. — In collection of Pomona College. 



Paratype. — No. 15985. U. S. Nat. Mus. 



MEGAMELUS RECTANGULARIS. new species. 

 Plate 48, fig. S. 



Length of body, 2.6 mm.; width of vertex, 0.20; width of frons, 

 0.26; antennae, I 0.07, II 0.22. General color orange-yellow, whitish 

 on scutellar carinas. Body medium in size. 



Head narrower than prothorax, moderately long, rather strongly 

 carinate; vertex longer than broad, rectangular, produced somewhat 

 before eyes; carinae distinct at apex; frons somewhat hexagonal, 

 broadest at ocelli; genae slightly pubescent; antennae about reaching 

 to clypeus. Lateral pronotal carinte rather straight, almost reachmg 

 hind margin; scutellum long. Elytra flavous, with tips of membrane 

 veins browned broadly. Legs typical. 



