MEXICAN ORTHOPTERA. 227 



Plectrotettix viatorius (Saussure). 



1861, Stenobothrus viatorins Saussure, Rev. et Mag. de Zool. (2), xii, p. 317. 



Four females ; Cuernavaca, Morelos, vi. 



Splienariuni borrei Bolivar? 



1884, Sphenarium borrei Bolivar, Auu. Soc. Esp. Nat. Hist., xiii, cuad. 3, 

 p. 445. 



Three females ; Nepantla, Morelos, xi, and Jalapa, Vera Cruz, viii. 



It is quite possible that these specimens represent two species, and 

 that true borrei is not represented in them, but with the small 

 amount of material I have referred here with a query. 



Sphenarium purpurasceu$« Charpentier. 



1845, Sphewirium pnrpurasceu.s Charpentier, Orth. descv. et dep., pi. 31, f. 1-8. 



Five specimens, four males, one female; Jalapa, Vera Cruz, viii, 

 Eslava, D. F., and Nepantha, Morelos, xi. 



Arphia nietana (Saussure). 



1861, Tomonotus niefanus Saussure, Eev. et Mag. de Zool. (2), xiii, p. 321. 



Two females ; Eslava, D. F. 



Ijaetista piinctatus (Stal). 



1873, (Edipoda punctatus Stal, Eecensio Orthopterorum, i, p. 130. 



Two specimens, S and 9 ; Presidio, Vera Cruz, vi. 



Triinerotropis fascicula McNeill. 



1900, Trimerotropis fascicida McNeill, Psyche, viii, p. 31 ; Proc. U. S. Nat. 



Mus., xxiii, p. 425. 1901. 

 Trimerotropis monticola Rehu (nee Saussure), Trans. Amer. Eut. Soc, 



xxvii, p. 97. 1900. 



Ten specimens, 4 males, 6 females ; Cuernavaca, Morelos, vi ; 

 Tacubaya, D. F., xi, 25 (1), and Tizapan, D. F., viii (1). 



Though this species was described from New Mexico (and Ari- 

 zona ?), it seems to occur plentifully in central Mexico. ^McNeill 

 has made the statement that this species may not be distinct from 

 his braneri, and, as far as the median carina of the vertex goes as a 

 differential character, I have specimens which show a fairly well 

 marked median carina. Both varieties mentioned by McNeill occur 

 in the collection, the posterior angle of the pronotum being obtuse- 

 anguiate in some representatives before me. 



Heliastus suiniclirasti (Saussure). 



1861, (Edipoda smnichrasti Saussure, Rev. et Mag. de Zool. (2), xiii, p. 324. 

 Lactista inermus Rehn, Trans. Amer. Ent. Soc., xxvii, p. 97. 1900. 



Three specimens, all males; Cuernavace, Morelos, vi. 



TKANS. AM. ENT. SOC, XXVII. JUNE, 1901. 



