SCIRTETICA. --LACTISTA. 167 



1. Scirtetica marmorata, Harris. 



Locusta marmorata, Harr. Ins. Inj. Veg. p. 145 (1841) \ 



(Edipoda marmorata, Uhler, in Harr. Ins. Inj. Veg. 3rd ed. p. 179 (1862) 2 . 



Dissosteira {Scirtetica) marmorata, Sauss. Prodr. CEdip. p. 141 (1884) 3 . 



Psiftidia marmorata, Davis, Ent. Amer. v. p. 81 (1889) *. 



Scirtetica marmorata, Bruner, in Smithes Ins. N. J. p. 415 (1890) 5 ; Scudd. Cat. Orthopt. U.S. 



p. 38 (1900) 6 . 

 Locusta cerineipennis , Harr. in Hitchc. Rep. Geol. Mass. 1st ed. p. 583 (1833) 7 . 



Hab. North America, Atlantic and Gulf coast from Ontario to Texas 1-7 . 



While not recorded from south of the United States, it is quite probable that it also 

 occurs along the Gulf coast of Mexico. 



2. Scirtetica occidentalis, Bruner. 



Scirtetica occidentalis, Bruner, N. Am. Fauna, vii. p. 267 (1873) l ; Scudd. Cat. Orthopt, U.S. p. 38 

 (1900) \ 

 Hab. North America, Argus Mountains, California (U.S. Nat. Mus. 1 ). 



Belonging as it does to the same faunal area as North-western Mexico, this insect 

 can be looked for there as well as in California. As suggested in connection with that 

 species, the present insect may be congeneric with the one described by me under the 

 name of Dissosteira planipennis, antea, p. 164.] 



[MICEOTES, Scudder. 

 Microtes, Scudder, Canad. Ent. xxxii. p. 329 (1900). 



Although the present genus does not appear to have been taken any nearer to our 

 territory than Monterey, California, it belongs to practically the same fauna as that 

 found on the west coast of Mexico. It may, therefore, be expected to occur in the 

 peninsula of Lower California. 



l. Microtes nubila, Scudd. 



Microtes nubila, Scudd. Canad. Ent. xxxii. p. 330 (1900) \ 



Hab. North America, Monterey, California (mus. Leland, Stanford Jr. University 1 ).] 



LACTISTA, Saussure. 

 (Edipoda, Stal (in part.). 

 Lactista, Saussure, Prodr. CEdip. p. 142 (1884). 



This genus is composed of medium-sized insects, which occur from Northern South 

 America to the southern parts of California, Arizona, New Mexico, and Texas. 

 According to available records, at least five distinct species are to be credited to our 

 region. They may be characterized thus : — 



