644 



CATALOGUE OF 



Prosterni spina longa, gracilis, sultacuta, subobliqua. Femora po.^tica 

 ssepissime abdomine luugiora. Alae auticre ssepissime corpore nou 

 breviores. 



Body rather slender, nearly cylindrical. Head smooth ; tip of the 

 vertex conical, depressed, with two converging keels, which are continued 

 in the abbreviated inner keels of the front ; front roughly punctured ; outer 

 keels slightly diverging towards the face. Eyes elliptical, slightly pro- 

 minent. Antennas filiform, long, slender. Prothorax subsellate ; forepart 

 nearly smooth ; hind part scabrous, wider and with a well-defined keel ; 

 transverse impressed lines very strongly marked; fore border slightly 

 notched in the middle; sides ronnded ; hind border much rounded. Pro- 

 slernal spine long, slender, slightly acute and oblique. Hind femora 

 generally longer than the abdomen ; hind tibia? a little shorter than the 

 hind femora. Fore wings generally as long as the body. 



1. CHROMACEIS SPECIOSA. 



Gryllus speciosus, T/mnb. M6m. ix. 40, pi. 14, f. 1 Gryllus (Locusta) 

 Miles, Stall, Saut.et Grill, pi. 16b. f. 6 Acridium speciosum, Serv. 

 Hist. Orth. 673. 



a. Vera Cruz. From M. Salle's collection. 



b. Guayaquil. From Mr. Stevens' collection. 



c. Venezuela. From Mr. Birschell's collection. 

 df. Honduras. From Mr. Dyson's collection. 

 g. Archidona. From Mr. Stevens' collection. 



h. Nanta. From M. Degand's collection. 

 i. Brazil. Presented by J. P. G. Smith, Esq. 

 k. Brazil. Presented by the Entomological Club. 

 /. Buenos Ay res. 



2. CHROMACRIS COLORATA. 

 Acridium coloratura, Serv. Hist. Orth. 674. 

 S. Carolina. 



Genus 19. AGRIACRIS. 



Mas. Corpus sat gracile, fere cylindrieum Caput breve, sparse 

 punctatum ; fastigium depressum, longi-conicum ; frons scabra, carinis 

 quatuor benedeterminatis. Oculi elliptici, transversi, prominuli. Antennae 

 filiformes, capite et prothorace ad unum multo longioies. Prothorax 

 carinatus, aspere scaber, margine antico subinciso, margine postico 

 producto dentalo angulato. Prosterni spina gracilis, longiuscula, acuta. 

 Femora postica abdomine paullo longiora. 



Male. Body rather slender, nearly cylindrical. Head short, thinly 

 punctured ; tip of the vertex excavated, elongate-conical ; front scabrous ; 

 keels distinct, slightly diverging towards the face. Eyes elliptical, trans- 

 verse, prominent. Antenna filiform, 23-jointed, much longer than the 

 head and the prothorax together. Prothorax roughly scabrous, with a 

 distinct keel ; fore border nearly straight, slightly notched in the middle; 

 sides rounded; hrnd border elongated, dentate, angular. Prosternal spine 

 slender, acute, rather long. Hind femora a little longer than the abdomen ; 



