TBIMEEOTKOPIS. 179 



TRIMEKOTROPIS, St&l. 

 (Edipoda, auctt. (in part.) . 

 Trimerotropis, Stal, Recens. Orthopt. i. pp. 118, 134 (1873) ; Saussure, Prodr. (Edip. p. 166 (1884) ; 



McNeill, Proc. U.S. Nat. Mus. xxiii. p. 393 (1901). 

 Pseudotrimerotropis, Rehn, Trans. Amer. Ent. Soc. xxvii. p. 334 (1901). 



Trimerotropis is the largest and most widely distributed American genus of the 

 (Edipodinse. While perhaps only about a dozen of the described forms are credited 

 to, or contained in, the collections studied, upwards of thirty so-called species 

 undoubtedly reach or belong to Mexican territory. Some of these are very distinct 

 and easily recognizable, but others seem to be very closely allied and are difficult to 

 separate. The genus has been recently revised by Jerome McNeill [Proc. U.S. Nat. 

 Mus. xxiii. pp. 393-449, t. 21 (1901)], who gives an analytical key for the separation 

 of the then known species, most of which are also fully described and their geo- 

 graphical range noted. This being the case, the reader is referred to that paper for a 

 fuller account of these insects. The more recently described forms are here referred 

 to their approximate positions in McNeill's table or in the series. Only a single form 

 is now added. 



1. Trimerotropis texana, Bruner. 



Gonozoa texana, Bruner, Proc. U.S. Nat. Mus. xii. p. 65 (1890) l ; Scudd. Cat. Orthopt. U.S. p. 40 



(1900) \ 

 Trimerotropis texana, McNeill, Proc. U.S. Nat. Mus. xxiii. p. 406 (1901) 3 . 



Hab. North America, El Paso, Texas (G. W. Dunn), Las Cruces, New Mexico 

 (C. H. T. Townsend). — Mexico, Northern Chihuahua (L. Bruner). 



2. Trimerotropis albolineata, Bruner. 



Conozoa albolineata, Bruner, Proc. U.S. Nat. Mus. xii. p. 66 (1890) 1 ; Scudd. Cat. Orthopt. U.S. 



p. 40 (1900) \ 

 Trimerotropis albolineata, McNeill, Proc. U.S. Nat. Mus. xxiii. p. 407 (1901) s . 



Hab. North America, Los Angeles, California (Koebele, Coquillett). 



Other specimens of this species that were taken near the Mexican border in Southern 

 Arizona have been seen by me. These were collected by Dr. R. E. Kunze, of Phoenix, 

 Arizona. The insect certainly reaches Mexican territory. 



3. Trimerotropis monticola, Sauss. 



Trimerotropis monticola, Sauss. Prodr. (Edip. p. 170 (1884) * ; Addit. Prodr. (Edip. p. 63 (1888) 2 ; 

 Scudd. Cat. Orthopt. U.S. p. 42 (1900) 3 ; McNeill, Proc. U.S. Nat. Mus. xxiii. p. 422 (1901) *. 



Hab. Mexico, Perote, near Tezuitlan, 2600 metres (Saussure 1 ). 



2Aa2 



