222 mOCKKl^lXiiS or the XATrOXAL MCSEFM. vol.xx. 



feebly t«'ctat<^ above, paasinpj by a well-roniided anjjle into the inferiorly 

 vertical lateral lobes, ferruj^iiious brown above, fading onton the nu^ta- 

 zona into t'errnj^iuons, liiteo testaceous below; front niarj^in subtrun- 

 cate, hind nnir<iin broadly convex; median (!arin;» ])er(;urrent, slight, 

 the transverse sulci of the pi'o/ona slijrht and not cutting' the median 

 i'arina: pro/.ona lon^itmlinal, very sjiarsely and feebly ])unctate, about 

 a third Icm^er than the finely and densely punctate metazona. Pio- 

 sternal spine short, appressed cyliinlrical, blunt, stron^jjly retrorse; 

 interspace between inesosternal l'»be,s more than twice as lon^ as broad 

 (male) or subipiadrate (female), the nu'tasternal lobes su^- Jttin,u:ent 

 (male) (»r suba[)pro\imate (female). Te^mina broad oval, shorter than 

 the pionotuin, very broadly rounded a])ically,overlap|)in«;, wood brown, 

 with a l)asal blackish fuscous clond in the costal area, femora luteo- 

 ferrujj^inous, the fore pair feebly tumid in the male, the him' i)air dull 

 ferrnjiinous on the upper face, feebly and irrejiularly blotc'm d or freck- 

 led with lij::ht fnsc<ms on the ouier and inner faces, tla\or.4 or vinous 

 beneath, the ..eiicular arc aiul most of the jj^eniculation black; hi?ul 

 tibiae glaucous «rreen, the spines black with ])allid bases, ten in num- 

 ber in the outer series. Thoracic ])leura piceous, with the front face of 

 the nu^sothoracic episterna and the rid^e of the metathoracic epimera 

 luteo-testaceous. Abdomen testaceous, with the sides, especially of 

 basal segments, ])iceous or blackish fulij^inous; extremity in the male 

 clavate, well ui)turned, the supraanal plate broad trian^rular, the apex 

 rectau«rulate but compressed so that the sides are sinuate, the lateral 

 halves very broadly and very shallowly sulcate, the median sulcus 

 broad at base, narrowing^ as far as the middle and thereaftc narri ^ 

 and pcrcurreiit. its lateral wjills sharp and high oidy in the basal por- 

 tion; furcula consisting of a pair of lobate distant expansions of the 

 middle of the last dorsal segment, resting upon the outer side of the 

 base of the nuirginal ridges of the median sulcus of the supraanal 

 plate; cerci moderately broad, straight, slightly tapering, tiat on the 

 external face, which is a little more than twice as long as the median 

 breadth, then abruptly recurved inward, leaving a ragged, ccmcave ter 

 minal edge, the reversed flange a little longer than broad, apically 

 rounded, deeply excavated, pressing against the compressed portion of 

 the supraanal plate; subgenitai plate small, considerably longer than 

 broad, not prolonged, of equal width throughout, except for a feeble 

 apical elevation, forming a snuiU blunt tubercle. 



Length of body, male, 16.75 mm., female, 21.5 i m.; antennae, female, 

 7.25 mm.; tegmina, male, 4 mm., female, 4.75 mm.; hind femora, nmle, 

 10.25 mm., female, 12.5 mm. 



One male, one female. Ciudad del Maiz, San Luis Potosi, Mexico, 

 E. Palmer. 



The character of the cerci with their reversed apex distinguishes this 

 species at a glance from all other Melauopli. 



