Macromotettix Günther, 1939

Deng, Wei-An, Xin, Lei, Wei, Qiao & Chen, Ya-Zhen, 2018, Two new species of the genus Macromotettix Günther, 1939 (Orthoptera: Tetrigidae, Metrodorinae) from China, with a key to the species of the genus, Zootaxa 4370 (4), pp. 421-430 : 422

Macromotettix Günther, 1939

Macromotettix Günther, 1939 , 20: 154; Blackith, 1992: 110; Jiang & Zheng, 1998: 317; Zheng & Jiang, 2002, 24(4): 235; Zheng, 2005: 139; Deng, Zheng & Wei, 2007b, 1620: 63; Deng, Zheng & Wei, 2007a: 129 ; Deng, 2016: 127.

Type species: Macromotettix quadricarinatus ( Bolívar, 1898) = Mazarredia quadricarinata Bolivar, 1898 .

Redescription. Body small-sized, slender or stubby. Head not exserted or slightly exserted above upper level of pronotum; vertex generally narrower than or as broad as or wider than an eye, vertex distinctly concave between eyes; in profile, vertex and frontal costa forming a round or obtuse shape, frontal costa before eyes not visible sometimes. Frontal costa bifurcate behind the paired ocelli, fontal costa protruding as arch between antennae, paired ocelli placed between the middle of the eyes. Antennae filiform, inserted below lower margins of eyes. Eyes globular in shape.

Pronotum truncate anteriorly, midkeel of pronotum entire, lateral keels of prozona distinct. Humeral apex ridge and lower margin of pronotum connected in the middle or behind middle of lower margin of pronotum. Posterior angles of lateral lobes of pronotum produced outwards, end of posterior angles truncate, posterior margin of each lateral lobe with two bisinuates. Tegmina normal. Wings not reaching or reaching or surpassing the caudal end of pronotum. Fore and middle femora elongated, margins straight or undulated; hind femora stubby, outer and inner side of hind tibia with distinct spines, first and third posterior tarsal segments nearly equal in length.

Differential diagnosis. This genus is similar to Bolivarittix Günther, 1939, but differs from humeral apex ridge and lower margin of pronotum connected in the middle or behind middle of lower margin of pronotum (humeral apex ridge and lower margin of pronotum connected before middle of lower margin of pronotum in Bolivarittix Günther). It appears similar also to Macromotettixoides Zheng, Wei & Jiang, 2005 , but differs from the latter by posterior margin of each lateral lobe of pronotum with two bisinuates (posterior margin of each lateral lobe of pronotum with one concavity in Macromotettixoides ).