NO. 1124. REVISION OF THE MELAXOPLISCUDDElt. 373 



broad (male) or slightly broader than long (female). Tegmiua surpass- 

 ing considerably the hind, femora, gently and feebly tapering from the 

 subbasal expansion to the well-rounded tip, fusco-testaceous with an 

 olivaceous tinge, distantly and uniformly flecked with usually roundish 

 or subquadrate dark fuscous spots, less abundant in the apical third, 

 but not confined at all to the discoidal area; wings smoky pellucid, 

 becoming feebly infuscated apically, the veins and cross-veins mostly 

 blackish fuscous. Fore and middle femora luteo-ferruginous, flecked 

 with dark olivaceous or fuscous; hind femora varying from, sordid 

 luteo-fuscous to dull pale olivaceous, rather narrowly and completely 

 bifasciate with black, forming unusually regular transverse bands, the 

 whole apex blackish fuscous or black; hind tibiae plumbeo-fuscous at 

 extreme base, followed by a very narrow black annulus and this by a 

 broader pale annulus, beyond which the tibiae are dull red, obscured 

 above, excepting at apex, and sometimes on the sides for a similar and 

 beneath for a brief distance, with fuscous, often broken into flecks, 

 the whole pilose above; spines black nearly or quite to their base, 

 ten to twelve in number in the outer series. Extremity of male abdo- 

 men feebly clavate, much upturned, the supraaual plate broad, triangu- 

 lar, with nearly straight lateral margins, acutangulate tip (too nearly 

 rectangulate in our figure), with a broad and rather shallow median 

 sulcus, interrupted beyond the middle, and in the basal half bounded 

 by moderately high walls; furcula composed of a pair of slight trian- 

 gular projections at the inner angles of the divided last dorsal segment, 

 overlying the ridges of the supraanal plate ; cerci large, subequal on the 

 basal two- fifths or more, then abruptly expanding into a transverse 

 apical flap, twice as broad as the base, the expansion almost wholly on 

 the upper side and at right angles to the basal portion, the apical 

 margin broadly convex, but below emarginate to form a denticulation 

 of the lower posterior angle of the flap, the whole gently incurved 

 and surpassing the supraanal plate ; iufracercal plates wholly concealed 

 beneath the supraanal plate; subgenital plate moderately broad, very 

 greatly extended and abruptly elevated at the extreme apex. 



Length of body, male, 30 mm., female, 44 mm.; antennae, male, IS 

 mm., female, 16.5 mm.; tegmiua, male, 26 mm., female, 31 mm.; hind 

 femora, male, 16 mm., female, 21 nun. 



Six males, 2 females. Dallas, Texas, Boll (U.S.KM. Kiley collec- 

 tion; S. H. Scudder); Gulf coast of Texas, Aaron; Arizona, Schaupp 

 (L. Bruner). 



This species is certainly very closely allied to M.punctu latus, which 

 not only occurs with it, but over a much wider extent of country; it is 

 a much larger insect and differs in several points in the abdominal 

 appendages of the male, though it is possible that the two should be 

 looked upon as races of a single species. 



