219 



Bod}^ very robust ; head large. Vertex very broad, descending vertically 

 in front. Face vertical, "flat, and convex.* Prouotum not coarctate, flat above 

 and rugose. Posterior femora greatly dilated. Antennae slender and filiform. 

 (Approaches Thrinchus in the form of the posterior femora). 



li. elepiias, Sauss., Rev. et Mag. Zool., XIII, 1861, 398. 



Grayish-brown ; body very roliust. Head large, convex ; face perpen- 

 dicular, arcuate ; the intermediate carinse obliterated near the mouth ; the 

 costa above the ocellus verrucose. Vertex very broad, with conspicuous 

 lateral foveolse ; the median foveola almost obsolete, and descending in a plane 

 upon the front. Pronotum much enlarged; the posterior part much pro- 

 duced, distinctly and prominently verrucose ; flat above ; acute-angled at the 

 apex ; median carina slender ; the anterior portion is separated from the 

 posterior part by a profound sulcus; not constricted, and without lateral 

 carinas. Elytra a little longer than the abdomen, with large grayish spots. 

 Wings yellow, with a broad fuscous band; apex sub-pellucid. 



Length, 1.6 inches. 



Mexico (Saussure). 



ACRIDINI. 



DACTYliOTUM, Chas'i*. 



This genus, which has been established by Charpentier, is closely 

 allied to Pezoteltix. Tlie head appears to be short, obtuse, and rounded ; 

 the vertex rather broad, slightly grooved, and deflexed ; the eyes large, 

 sub-rotund, and slightly prominent ; the frontal costa somewhat promi- 

 nent and sulcate throughout. Antennae of medium lengtli, filiform, slightly 

 compressed. Pronotum cylindrical; anterior margin obtusely rounded, sub- 

 truncate (Charpentier says it is slightly notched in the middle, but his 

 figure does not show it thus ; on the contrary, the figure shows a very 

 slight nolch in the middle of the hind border); hind border rounded; the 



* I suppose tbis meau.s that it is flat transversely, and arcuate perpeudiculaily. 

 This geuus appears to be closely allied to my Sec. a, Snbdivis. 2, Divis. 3, of (Edipoda, 

 and should probably be united with Eremob'ia. 



