200 ORTHOPTEKA. 



A male and female in coitu were found by Herr Hoge. The types bear Saussure's 

 label " Sphenarium mexicanum" but this is certainly an error. 



6. Sphenarium borrei, Boiiv. (Tab. IV. fig. 21, s .) 



Sphenarium borrei, Boliv. Mongr. Pirgomorfinos, p. 99 (1884) l ; Rehn, Proc. Acad. Nat. Sci. 

 Philad. 1904, p. 528 2 . 

 Hab. Mexico 2 , Guanajuato (Mus. Belg. 1 ), Guadalajara and Tepic in Jalisco (coll. 

 Acad. Nat. Sci.). 



This is probably the most northerly distributed species of the genus. 



7. Sphenarium rugosum, sp. n. 



Above the medium in size, rather robust, with heavy legs and coarsely and evenly granulose body. General 

 colour dull wood-brown, modified only by a narrow pale line behind each eye, a medio-dorsal one on the 

 mesonotum, and a very narrow pale border to the sides of the pronotum. Lower side of pectus and 

 venter pale. Fastigium rather short and obtuse. Tegmina spatulate, reaching the hind extremity of the 

 metathorax. Pronotum with slight, but interrupted, lateral carina?. 



Length of body, $ § , 28 ; of pronotum 7, of hind femora 15 millim. 



Hob. Mexico, Cuernavaca in Morelos (C. C. Beam, in coll. L. Bruner: s 2 )• 



On account of its dull granulose surface, this insect does not resemble very closely 

 any of the other species of the genus. Its body is also sparsely covered with rather 

 long grey hairs. Found in the month of January at Cuernavaca. 



8. Sphenarium barretti, sp. n. 



In size and form very similar to the preceding species, but with well-marked lateral carina? on the pronotum, 

 and with the body more or less glabrous, though granulose as well. General colour fusco-piceous varied 

 with yellow. Pace, a line on each side of the head back of the eyes, the lower edge of the sides of the 

 pronotum rather broadly, the lateral and median carina?, a medio-dorsal line on the meso- and metathorax 

 and abdomen, and an oblique line on each side of the mesonotum, yellow. There is also a conspicuous 

 yellow maculation on each side of the basal abdominal segment, while the dark lateral abdominal stripes 

 are rather widely margined, both above and below, with paler colour, thereby giving the abdomen the 

 appearance of being longitudinally vittate with light and dark. Hind femora with dark knees ; the tibia? 

 rather strongly infuscated. 



Length of body, 6 , 27 ; of pronotum 5'5, of hind femora 15'3 millim. 



Hab. Mexico, Rio Cocula, Guerrero (0. W. Barrett, in coll. L. Bruner : 8 ). 



A single specimen, found in December. This form seems to be rather closely related 

 to S. purpurascens, Charp., but most certainly differs from that insect as recognized by 

 the present writer. 



9. Sphenarium purpurascens, Charp. 



Sphenarium purpurascens, Charp. Orthopt. descr. et depict, t. 31. figg. 1-8 (1841-45) l ; Boliv. 

 Monogr. Pirgomorfinos, p. 100, t. 2. fig. 15 (1884) 2 . 



Hab. Mexico l 2 , Tlalpam, Distrito Federal, Puebla, &c. (coll. L. Bruner). 



