A new species of the genus Saussurella Bolivar 1887 from China, with a key to the species of the genus (Orthoptera: Tetrigidae) Author Deng, Wei-An Author Zheng, Zhe-Min Author Lei, Chao-Liang text Journal of Natural History 2017 2017-03-30 51 1 10 http://dx.doi.org/10.1080/00222933.2017.1293747 journal article 10.1080/00222933.2017.1293747 1464-5262 4630996 Saussurella brachycornis sp. nov. ( Figures 1–2 ) Diagnosis Female. Size small and medium and its head not exerted above the pronotal surface. Vertex wide, its width 2.0 times the width of an eye ( Figure 1 (d)), anterior margin slightly protruding beyond the eyes; in profile, frontal ridge and vertex forming an obtusely rounded, slightly concave area before lateral ocelli and protruding as arch between antennae ( Figure 1 (c)), longitudinal furrow distinctly wider than width of first segment of antennae, carinae nearly parallel ( Figure 1 (e)). Antennae filiform, 21-segmented, inserted between lower margin of eyes ( Figure 1 (c)), mid segments six to seven times as long as wide. Eyes globose; lateral ocelli placed in the middle between eyes ( Figure 1 (e)). Frontal cornu of pronotum protruding forward, over the head in front ( Figure 1 (a,b)), shorter, length of horn-like process of pronotum about 1.7 mm ; in profile, horn-like process of pronotum slightly ascendant, oblique, lower margin straight and upper margin curved forward ( Figure 1 (c)); apex of horn-like process rounded in dorsal view ( Figure 1 (d)), length of horn-like process about 0.95× longer than length of tegmina; mid keel of pronotum entire, upper margin of pronotum straight in profile ( Figure 1 (a)). Lateral keels of prozona parallel, humeral angle obtusely rounded, without abbreviated carinae between shoulders; posterior process of pronotum narrow, long cone-shaped, surpassing apex of hind femur and reaching middle of hind tibia ( Figure 1 (a,b)). Lateral lobes of pronotum turned downwards, posterior angles nearly right angles, posterior margin of each lateral lobe with two concavities. Visible part of tegmina ovate, 1.8 mm in length, its width equal to width of mid femur. Hind wings developed, surpassing apex of posterior process of pronotum about 1.2 mm . Fore femora elongate, upper and lower margins conspicusly sulcate ( Figure 2 (a)); middle femora elongate, apex of its upper margins with a small acute genicular spine ( Figure 1 (f)). Hind femur stubby, with length 2.8 times its width, mid keel of dorsal and ventral side of hind femur dentate, antegenicular small and acute, genicular denticles large and right angled. Outer and inner side of hind tibia with eight to nine spines. First segment of posterior tarsus slightly shorter than third in length, three pulvilli equal in length, apices of all pulvilli obtuse ( Figure 2 (b)). Ovipositor narrow and long, length of upper valvulae 2.8 times its width, upper and lower valvulae with slender saw-like teeth ( Figure 2 (c)). Posterior margin of subgenital plate with three lobes ( Figure 2 (d)), middle lobe shorter than lateral lobes in length. Colouration Body dark brown. Antennae yellow-brown, the last four segments black. Tegmina black and edge light colour. Hind femora yellow-brown, with dark transverse bands. Hind tibiae black-brown. Male ( Figure 2 (e)). Similar to female, but smaller and narrower. Width of mid femur wider than tegmina. Subgenital plate short, apex truncate, lateral margins slightly constricted inwards in middle ( Figure 2 (f)). Figure 1. Saussurella brachycornis sp. nov. (a) Female, dorsal view of body; (b) female, lateral view of body; (c) lateral view of head and pronotum; (d) dorsal view of head and pronotum; (e) frontal view of head; (f) lateral view of mid femur. Scale bar: 1 mm. Figure 2. Saussurella brachycornis sp. nov. (a) Frontal view of fore femur; (b) lateral view of hind tarsus; (c) lateral view of ovipositor of female; (d) ventral view of subgenital plate of female; (e) male, lateral view of body; f. lateral view of subgenital plate of male. Scale bar: 1 mm. Measurements Length of body ♂ 13.0– 13.5 mm , ♀ 14.0– 14.5 mm ; length of pronotum ♂ 16.0– 16.5 mm , ♀ 17.0– 17.5 mm ; length of hind femur ♂ 6.5–7.0 mm, ♀ 7.5–8.0 mm. Holotype female and allotype male, China , Yunnan , Jinping , Fenshuiling National Nature Reserve , 22.76° N , 102.93° E , 1450 m altitude, 7 September 2012 , collected by Xun Bian and Guang-Lin Xie, SCBHU. Paratypes : Same data, two male; one females, leg. Xun Bian and Guang- Lin Xie, SCBHU. Remarks This species can be easily distinguished from other species of the genus by length of horn-like process of pronotum being shorter, and approximately 1.7 mm . It is only similar to Saussurella borneensis Hancock 1912 , from which it differs in: lateral keels of prozona parallel and conspicuous, width of mid femur equal to width of tegmina in female, middle lobe of posterior margin of female subgenital plate shorter than lateral lobes in length, and lateral margins of male subgenital plate slightly constricted inwards in middle. Saussurella borneensis Hancock 1912 exhibits inconspicuous lateral keels of the prozona, width of mid femur wider than width of tegmina in female, middle lobe of posterior margin of female subgenital plate equal to lateral lobes in length, lateral margins of subgenital plate widened apically in male. Etymology The new species’ name is derived from Latin brachy and cornis , referring to the short length of the horn-like process of pronotum. Habitat The new species lives in shrubbery in tropical rainforests. Distribution China ( Yunnan ).