74 THE CANADIAN ENTOMOLOGIST. 



bJ^ Metazona abruptly elevated above the prozona \ anterior sulcus 

 of pronotum very deeply impressed ; ovipositor much shorter 

 than hind femora; tegmina marked with pallid spots and 



streaks fuliginosus, Thorn. 



b.- Metazona gradually elevated above the prozona ; anterior sulcus 



of pronotum distinct but not deep; ovipositor longer than the hind 



femora ; tegmina nearly uniform in coloration . . . Brimeri, sp. nov. 



a.- Outer margin of fore femora very faintly spined beneath ; metazona 



scarcely elevated above the prozona, and the pronotum not sub- 



sellate occidentalis, Thom. 



Fuliginosus was described by Thomas from a male from Arizona, 

 and the specimen, a female, sent me by Bruner is from the same territory; 

 Bruneri comes from California and was sent me by Professor Bruner ; 

 occidentalis was originally described from California, and the specimens 

 I have seen come from Nevada and Utah. The sub-family Locustinse to 

 which Thomas thought these species belonged has not been recognized 

 in the New World. 



On different occasions I have received from the extreme south- 

 western part of the United States specimens of a large speckled Acridian 

 belonging to a generic type of Eremobiini very distinct from any known 

 and differing widely from either of the two known genera of this group 

 found in our territory. It may be called Tytthotyle (ti't^os^ ti'A?;). It 

 has a general Oedipodid aspect, not unlike Anconia or Hadrotettix. The 

 body is not depressed, and but little compressed ; the head is normal, with 

 rather large and prominent eyes ; the intraocular space, as seen from 

 above, is narrower than the width of the eyes ; the vertex is carinulate ; 

 the fastigium of the vertex sulcate, distinctly declivent, passing by a 

 scarcely interrupted curve into the frontal costa ; the latter is not very 

 broad, contracted and sulcate just below the ocellus, then disappearing. 

 The antenna; are slender and shorter than the pronotum, at least in the 

 female. The pronotum narrows rapidly from behind forward, is feebly 

 carinulate with blunt lateral rugje or shoulders, the lateral lobes of equal 

 width throughout ; the metazona is a little longer than the prozona, sub- 

 acutangulate posteriorly ; the prozona is twice cut by transverse sulci, 

 and is a little tumid on the disk. The tegmina and wings are fully 

 developed and much longer than the body. The hind femora are scarcely 

 compressed, of general Oedipodid form, merely carinate above ; the inner 

 and outer calcaria of the hind tibii\; are subequal, and the arolea minute. 



