A review of the genus Mazarredia Bolivar (Orthoptera: Tetrigoidea: Tetrigidae: Metrodorinae) from China Author Deng, Weian Author Zheng, Zhemin Author Wei, Shizhen text Zootaxa 2007 2007-11-23 1645 1 47 56 https://www.biotaxa.org/Zootaxa/article/view/zootaxa.1645.1.4 journal article 10.11646/zootaxa.1645.1.4 1175­5334 5103763 0DB60152-0638-4B60-89F8-E7D77A4A4681 3. Mazarredia sfrictivertex sp.nov. ( Fig. 2 ) Diagnosis : Mazarredia sfrictivertex sp.nov. is similar to Mazarredia huanjiangensis Zheng et Jiang, 1994 , but differs in: anterior margin of pronotum in contact with hind margins of eyes, upper margin of pronotum undulated in profile, lateral keels of prozona constricted backward, caudal end of pronotum reaching the top of hind tibia, upper and lower margins of middle femora undulated, width of midfemur of female equal to the width of tegmina. Description: ♀ Fig. 2 : Size small, slender. Head distinctly exserted above the pronotal surface ( Fig. 2b,2c ), vertex very narrow, width of an eye 1.7 times the width of vertex ( Fig. 2a ). Anterior margin of vertex straight, without protruding beyond eyes, median carina conspicuous ( Fig. 2a ). In profile, vertex and frontal ridge forming obtuse round shape ( Fig. 2b,2c ). Frontal ridge slightly protruding arching between antennae ( Fig. 1b,1c ), width of longitudinal furrow narrower than width of first segment of antennae. Antenna filiform, 15-segmented, length of a segment in middle about 7-8 times longer than width, inserted between lower margin of eyes ( Fig. 2c,2d ). Eyes globose, strongly exserted above the pronotal surface ( Fig. 2b,2c ). Lateral ocelli placed on middle of anterior margins of eyes ( Fig. 2d ). Anterior margin of pronotum straight and in contact with hind margins of eyes ( Fig. 2b,2c ), midkeel of pronotum completed, upper margin of pronotum undulated in profile ( Fig. 2b ). Lateral keels of prozona constricted backward ( Fig. 2a ), humeral angle an obtuse shape, with abbreviated carinae between shoulders ( Fig. 2a ). Caudal end of pronotum narrow, long cone-shaped, reaching the top of hind tibia ( Fig. 2a,2b ). Lateral lobes of pronotum little produced outwards, end of posterior angles truncate, posterior margins of lateral lobes of pronotum with two concavities. Tegmina long oval, apex round. Hind wings developed, reaching or slightly surpassing the caudal end of pronotum ( Fig. 2b ). Lower margins of anterior femora undulated, upper and lower margins of middle femora undulated ( Fig. 2b ), width of midfemur equal to the width of tegmina. Hind femur 3 times longer than wide, margins of hind femur finely serrulate, antegenicular right angle and genicular denticles acute. Outer side of hind tibia with 6-7 spines, inner side with 4-5 spines. Length of first segment of hind tarsi longer than third, third pulvillus longer than first and second, apices of three pulvilli sharp ( Fig. 2e ). Ovipositor narrow and long, length of upper valvulae 4 times its width, upper and lower valvulae with slender saw-like teeth. Length of subgenital plate slightly longer than its width, middle of posterior margin of subgenital plate with a triangular convex ( Fig. 1f ). Body brown. Wings black ( Fig. 2b ). Hind femur brown, lower outer side black ( Fig. 2b ). Hind tibia brown. Male : Body size smaller than female, feature of structure similar to female. Width of midfemur wider than the width of tegmina. Subgenital plate brief cone-shaped, apex sharp ( Fig. 2g ). Measurements: Length of body : ♂ 6.5–7.0 mm; ♀ 8.5–9.0 mm, length of pronotum: ♂ 9.5–10.0 mm, ♀ 11.5–12.0 mm; length of hind femur: ♂ 4.0– 4.5 mm , ♀ 5.0– 5.5 mm . FIGURE 2. Mazarredia sfrictivertex sp.nov. a) body of female, dorsal view; b) body of female, lateral view; c) head of female, lateral view; d) head of female, frontal view; e) first and second posterior tarsal segments; f) subgential plate of female, ventral view; g) subgential plate of male, lateral view (enlargement bar: a, b = 1mm; c, d, e, f, g = 0.5mm) Holotype ♀ . P. R . CHINA , Guangxi prov. , Mengshan (Huangcun), 24.3°N , 110.5°E , 600m alt, 7. v. 2006 , collected by Wei-An DENG . Paratypes . four ♂ s and two ♀ s, Same data as for holotype ; one ♂ , Guangxi prov. , Zhaoping ( Xiping ), 24.2°N , 110.8°E , 700m alt, 5.v. 2006 , collected by Shi-Zhen WEI ; two ♂ s and two ♀ s, Guangxi prov. , Hezhou(Guposhan), 24.5°N , 111.6°E , 900m alt, 1.v.2006 , collected by Wei-An DENG .. Material is deposited in the Institute of Zoology , Shaanxi Normal University, Xi’an, China ( 4 ♂ 3 ♀ ) and Department of Chemistry and Life Science, Hechi University, China ( 4 ♂ 2 ♀ ) . Etymology. This new species name is derived from the Latin sfrict and vertex ; meaning vertex very narrow, width of an eye 1.7 times the width of vertex. Distribution: China ( Guangxi ).