286 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



again (female) as broad. Tegmina considerably surpassing the liiud 

 femora, rather slender, subequal, brownish fuscous, minutely flecked 

 with fuscous throughout the discoidal area; wings not very broad, 

 hyaline, iridescent, the veins pale fuscous apically and anteriorly. Fore 

 and middle femora a little tumid in the male; hind femora brownish 

 testaceous, more or less infuscated (generally by longitudinal clouds) 

 on the upper half, but on the inner side above biinaculate with blackish 

 fuscous, the geuiculation mostly black and with a pregenicular slender 

 black armulus, the under side of the femora flavous inclining to orange ; 

 hind tibiae usually bright red with a slight fuscous patellar spot, but 

 sometimes pale yellowish red, or rarely pale yellowish green, the spines 

 black almost to their base, ten to twelve, usually eleven, in number in 

 the outer series. Extremity of male abdomen rather strongly clavate, 

 well recurved, the supraanal plate subclypeate, but very strongly and 

 roundly compressed in the basal half, the apex roundly and rather 

 bluntly rectangulate, the lateral margins strongly and abruptly elevated, 

 the median -sulcus deep, percurrent and apically expanded, bounded by 

 rather high but rounded walls ; furcula composed of a pair of greatly 

 extended, somewhat depressed, straight fingers, tapering by the nar- 

 rowing of their inner margins, lying outside the ridges of the supraanal 

 plate, reaching much beyond the middle of the same, and slightly out- 

 curved at their rather blunt tips; cerci rather broad at base, rapidly 

 narrowing beyond so as to be hardly half as wide in the middle, beyond 

 subequal, incurved and blunt-tipped, externally punctate throughout 

 and not reaching the tip of the supraaual plate ; subgenital plate hardly 

 half as wide at apex as at base, the lateral margin rapidly decliveut, 

 the apical margin not elevated, strongly rounded, entire. 



Length of body, male, 21 mm., female, 25 mm. ; antennae, male, 10 

 mm., female, 8.5 mm.; tegmina, male and female, 20 mm.; hind femora, 

 male, 12 mm., female, 13.25 mm. 



Seventy-seven males, 87 females. North Carolina, Uhler, Morrison ; 

 Dingo Bluff, North Carolina, November 15, Maynard; Smith ville, North 

 Carolina, Maynard; Georgia, Morrison (S. Henshaw; S. H. Scudder; 

 U.S.N.M. Eiley collection); Georgia, King (Museum Comparative 

 Zoology); Macon, Bibb County, Georgia, September 18 (U.S.N.M. 

 Eiley collection); Wilmington Island, Georgia, A. Oemler; Florida, 

 Neal (U.S.N.M. Eiley collection) ; Jacksonville, Duval County, Flor- 

 ida, May 6, J. H. Comstock; Fernandina, Nassau County, Florida, E. 

 Palmer; St. Augustine, St. John County, Florida, E. Palmer; Sanford, 

 Orange County, Florida, G. B. Frazer; Fort Eeed, Orange County, 

 Florida, April 8-23, J. H. Comstock; Appalachicola, Franklin County, 

 Florida, E. Thaxter. 



This species takes in our Southern Atlantic States the place of M. 

 femur-rubrum, which it closely resembles; it is most quickly distin- 

 guished from it by the form and sculpture of the supraanal plate and 

 the much greater length of the furcula. 



