26 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



Aedeagus (dry) as in figure 3,c-l, the apex of the dorsal valve 

 strongly curved laterally with anterior margin very heavily sclerotized 

 and excavate along entire length, main portion of dorsal valve less 

 heavily but well sclerotized, decidedly concave, dorsal marginal 

 membrane inconspicuous. Epiphallus with apex of each lophus 

 (fig. 8,k) broad in dorsal view, in lateral view with lophus erect, 

 much elevated, the apical margin barely angulate anteriorly. 



Coloration: General coloration pale brown, with the customary 

 markings of blackish, mottled with undertones of brown; head with 

 fairly wide blackish brown postocular bar; pronotum mottled with 

 brown above, laterally with irregular blackish longitudinal bar; tegmen 

 lightly speckled with brown, markings very inconspicuous on apical 

 half; hind femur with three fairly noticeable dorsal dark bars, these 

 weakly suggested on external paginal area, ventral portion of paginal 

 area yellowish, section between paginal area and ventral keel pink, 

 ventral and mesal surfaces yellowish, with traces of pinkish, knee 

 crescents black; hind tibiae pale, greenish gray mesally and yellowish 

 brown externally, spines and apical half of spurs blackish brown. 



Measurements in millimeters: Body, 22.0; pronotum, 4.5; front 

 femur, 3.5; hind femur, 12.0; tegmen, 17.5. Greatest width of 

 pronotum (posterior, including lateral lobes in perspective from above), 

 3.8; of hmd femur, 2.9. 



Explanation of Figure 7 



a-j: Lateral view of left cercus of male. 



a: Melanoflus mexicanus: 1, from Bledos, Mexico; 2, from Teotihuacan, Mexico. 

 b: M. spretus: 1, neotype; 2, from Kansas, 1874. 

 c: M. bilituraius defectus, Casa Grande, Ariz. 



d: M. bilituratus vulturnus: 1, holotype; 2, from Quincy, Fla.; 3, from Independ- 

 ence, Kans.; 4, from Nantucket, Mass. 

 e: M. bilituratus defectus: 1, from Tempe, Ariz.; 2, from Camarillo, Calif.; 



3, from Mount Charleston, Nev. 

 /.- M. bilituratus bilituratus: 1, from Gun Lake, Mich.; 2, from Washington 



Territory; 3, from Spokane, Wash.; 4, from Eureka, Calif.; 5, from Placer 



Co., Calif.; 6, from Doyle, Calif. 

 g: M. bilituratus bilituratus, with abnormal dorsal valve. Fort Benton, Mont. 

 h: M. devastator: 1, from Clarkson, Calif.; 2, from Roseburg, Calif.; 3, from 



Sisson, Calif.; 4, from Grant's Pass, Oreg.; 5, from Alpine, Calif. 

 j; M. bruneri: 1, 2, from Ft. McLeod, Alberta, Canada (2 specimens); 3, from 



Chilcotin, British Columbia, Canada; 4, from Mt. Moriah, Nev. 

 ;.• M. borealis borealis: 1, from Churchill, Manitoba, Canada; 2, from Laggan, 



Alberta, Canada; 3, from Matanuska, Alaska; 4, from Cummington, Mass.; 



S, from Grant, Colo. 

 k, I: Ventral view of right cercus of male (basal end at bottom of page): 

 k: M. devastator, Tacoma, Wash. 

 /; M. bilituratus bilituratus, Dorris, Calif. 



