L)6 FAMILY V. TETRIGIILK. THE GUofSK I.niTSTS. 



by the median carina but not reflexecl backward at middle; an- 

 tennae 14-jointed, inserted distinctly below the eyes: pronotum 

 granulose, rarely finely scabrous. IV. PARATETTIX. p. 175. 



dd. Frontal costa not at all sinuate; vertex subtruncate, in female dis 

 tinctly wider than one of the eyes, its frontal carinulse open in 

 front on each side next to the median carina and curved or re- 

 flexed backward; antennae 13-jointed, inserted scarcely below thf 

 eyes; dorsal surface of pronotum distinctly rugose. 



V. APOTKTTIX. p. 178. 



I. XoMOTETTix 32 Alorse, !S!4a, ir>0. (dr.. "pasture"' -f Tettix. i 



Small feebly compressed species, having the from of vertex 

 rounded or slightly annulate and distinctly advanced in front of 

 eyes, earinate, the occiput usually with a pair of minute tubercles 

 behind The middle of eyes I Fig. Id); antenna* short, filiform, 

 with 1'2, rarely 13 segments; frontal costa deeply sulcate, usually 

 sinuate opposite middle of eyes, its ridges acute, subparallel ; pro- 

 notum as described in key, its lateral lobes Insinuate behind, the 

 legminal sinus shallow, the lower one much deeper; tegmina nar- 

 row, their tips obtuse; hind femora large, swollen, basal joint of 

 hind tarsi longer than the next two united. 



Nine or ten nominal species of this genus have been described 

 from the Eastern United States and Canada, but I\ehn & Hebard 

 (191(5, 127) have stated that a study of 4r>S specimens "offers 

 convincing proof that but one species of \ontotctti.r exists in this 

 portion of North America. 33 This species is divided into five 

 geographic races which are typical over certain areas but which 

 intergrade so gradually that series of specimens from numerous 

 localities between those where the typical forms are found, show 

 intermediates of every degree." Typical examples of all of these 

 so-called races are before me and a careful study of them, with the 

 keys and descriptions of both Hancock and R. & H., show that 

 they possess no fixed characters by which they can be satisfactor- 

 ily separated by any key. T regard one of them, <ir<'ii<thix. as only 

 an intermediate or intergrading form and three of the others as 

 only geographic forms or races of the first named species, but re- 

 tain their names as trinomials in order that the student, if he so 

 desires, may use the racial name in the placing of his specimens. 



32 The suffix "tettix" used as a part of most of the generic names in tin-- tamily, is 

 the Greek for "grasshopper." 



33 They evidently did not take into consideration A', par^us Morse (1895, 14) and 

 A", siiuiifroiis Hancock (1899, 278), both of which were described from St. Anthony Park, 

 Minn. The former species is probably valid and, according to Somes (1914, 10) has been 

 taken at several localities in Minnesota. Since its known range is extralimital it is not 

 farther considered in this work. N. sinuifrons is the same as E. M. Walker's borealis 

 and is treated below as a race of N. cristatus, Hancock's name having priority. 



