NATURAL SCIENCES OF PHILADELPHIA. 
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postice declivibus (maris breviter acuminato-productis, feminae subacutis,) 
sulcatis, sulcis punctatis,,interstitiis punctis paucis notatis. Long. 1-25-1-5. 
Tab. Ill, fig. 1. 
Ringgold Barracks, Messrs. Schott and Haldeman. Allied to E. s u t u r al i s, 
but much larger and narrower, with the sides of the thorax and elytra still 
more strongly margined. The thorax is wider than the elytra and very much 
dilated and rounded on the sides. The spurs of the anterior tibiae are equal and 
slender, and acute in both sexes ; the anterior femora are armed with an acute 
tooth in the male, and an obtuse one in the female. 
III. 
E. pedinoides, oblonga, nigra subnitida, capite parce subtiliter punctate, 
thorace parce punctulato, capite triplo latiore transverso, parum convexo, 
lateribus valde rotundatis, postice obliquis vix sinuatis, ad basin truncate, et 
extrorsum paulo impresso, angulis anticis apice rotundatis, elytris dorso depla- 
natis, et baud marginatis, humeris prominulis acutis, lateribus parum rotundatis, 
postice declivibus et subacutis, sulcato-striatis, striis punctis submuricatis, in- 
terstitiis parce punctatis, ad apicem convexioribus et asperatis. Long. -75 — 1-0. 
Texas : Messrs. Haldeman and Berlandiere. Of nearly the same form as E. 
tricostata, but entirely glabrous above, though pubescent beneath: the 
elytra of the female are wider than the thorax, sometimes flattened, sometimes 
uniformly, though slightly convex ; those of the male are narrower and flattened. 
The femora in both sexes are simple ; the spurs of the anterior tibiae of the 
female are unequal, the posterior one (the inner) is acute, the outer one is 
twice as long, wider and slightly obtuse. In the male the spurs are broken, 
but they appear to have been less unequal in size. The prosternum is not at 
all prominent. 
E. asperata, omnino sicut in praecedente, exceptis elytris sulcatis, in 
sulcis subtilius muricato-punctatis, interstitiis postice magis exasperatis et 
breviter flavo-setosis. Long. -8 — 1-0. 
Texas, Messrs. Schott, Haldeman and Weise. The differences between this 
and the preceding are not very obvious. This has, however, the elytra more 
deeply sulcate, and the interstices are more rough with acute tubercles, which 
terminate in short yellow bristles ; near the sides of the thorax may also be 
seen some very fine hairs. The spurs of the anterior tibiae are unequal but 
acute ; in the male the anterior one is less than twice as long, but in the female 
more than twice as long as the posterior one. The form differs in the sexes as 
in the preceding. 
E. r 0 b u s t a, oblonga latiuscula, atra opaca, supra depressa, tenuiter parce 
fulvo-pubescens, capite thoraceque subtilius punctatis, hoc priore triplo latiore, 
latitudine duplo breviore, lateribus rotundatis, postice subsinuatis, ad basin 
truncato utrinque late subfoveato, angulis anticis subrotundatis, elytris thorace 
baud latioribus, postice declivibus et subacutis, dense granulato-punctatis et 
subcostatis, costis alternis magis distinctis. Long. -88. 
Ringgold Barracks, Mr. Haldeman. Closely allied toE. tricostata, but 
larger, and especially much broader, the thorax of the latter being hardly more 
than one half wider than its length, while in the present the breadth is more 
than twice the length. The sexes are not very different in form, but the elytra 
of the male are a little narrower and less rounded on the sides. The spurs of 
the anterior tibiae are unequal, the anterior being broader and twice as long ; 
the tip is more obtuse in the female than in the male. 
/ IV. 
E. n u p t a, ovata, nigra parum nitida, capite fortius, thorace minus dense 
punctatis, hoc parum convexo subrotundato, latitudine breviore, lateribus valde 
rotundatis, postice breviter sinuatis, ad basin late rotundatis, angulis posticis 
obtusis, anticis acutis subacuminatis, elytris ovalibus, postice declivibus singu- 
latim subacuminatis, thorace duplo latioribus ad basin vix emarginatis, dorso 
parum lateribus valde convexis, subsulcatis, in sulcis punctatis, interstitiis 
punctis perpaucis notatis. Long. -75— 1-05. 
1858.] 
