264 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. xx. 



ward, at the tip slightly expanded, well rounded and scarcely thick- 

 ened; subgenital plate very small, subpyramidal, a little longer than 

 broad, of subequal breadth, the apical margin slightly elevated and a 

 little full, entire. 



Length of body, male, 15.5 mm.; antennae, 8 mm.; tegmina. 3 mm.; 

 hind femora, 10 mm. 



One male. Jacksonville, Duval County, Florida, May 6, J. H. Coin- 

 stock. 



75. MELANOPLUS OBOVATIPENNIS. 

 (Plate XVII, fig. 10.) 



? Pezotettix Jongicornis SAUSSURE, Rev. Mag. Zool., 1861 (1861), p. 159; Orth. Nov. 



Ainer., II (1861), p. 9. THOMAS, Rep. U. IS. Geol. Surv. Terr., V (1873), p. 150. 



BKUNER, Rep. U. S. Ent. Coinm., Ill (1883), p. 59. 



IPoduma longicorn is WALKER, Cat. Derm. Salt. Brit. Mus., IV (1870), p. 718. 

 Pezotettix rotundipennis BLATCHLEY!, Can. Ent., XXIII (1891), p. 80. 

 Pezotettix olovatipennis BLATCHLEY!, Can. Eut., XXVII (1894), pp. 241-243. 



Brownish fuscous, with a ferruginous tinge. Head prominent, par- 

 ticularly in the male, varying from plumbeo-olivaceous to ferrugiueo- 

 testaceous, often much necked with fuscous, and above almost wholly 

 fa sco -ferruginous or fuscous; vertex rather tumid, elevated a little above 

 the pronotum, the interspace between the eyes rather broad, nearly twice 

 (male) or more than twice (female) as broad as the first antennal joint; 

 fastigiuin steeply declivent, plane (female) or broadly and shallowly 

 sulcate, or at least with feebly raised lateral margins (male); frontal 

 costa equal or subequal, slightly narrower than the interspace between 

 the eyes, percurrent, very feebly (female) or distinctly (male) sulcate 

 at and below the ocellus, punctate; eyes large, prominent at least in the 

 male, much larger than the infraocular portion of the genae; antennae 

 luteo-ferruginous, apical lyinfuscated, as long (male) or more than three- 

 fourths as long (female) as the hind femora. Pronotum rather long, 

 faintly (male) or distinctly (female) enlarging posteriorly with much 

 regularity, the disk blackish fuscous (male) or fusco-ferruginous (female), 

 the lateral lobes below pallid 1 (male) or luteo-testaceous (female), and 

 above with a broad piceous band which broadens and becomes feebler 

 on the metazona; disk broadly convex transversely, passing by a dis- 

 tinct though smoothed angle into the sub vertical lateral lobes; median 

 carina equally distinct throughout, scarcely blunter on the prozoua than 

 on the metazona; front margin truncate, hind margin subtruncate (male) 

 or truncate (female) ; prozona longitudinal (female) or very longitudinal 

 (male), fully (male) or nearly (female) twice as long as the distinctly and 

 closely punctate metazona. Prosternal spine moderately long, a little 

 appressed conical, blunt, erect; interspace between mesosternal lobes 

 about half as long again as broad (male) or distinctly transverse, only 



1 Ivory ^vhite, according to Blatchley, who has seen them in fresh condition. 



