A Checklist of Short-horned Grasshopper Species (Orthoptera: Caelifera) from Littoral Region of Cameroon with description of a new species of the genus Hemierianthus Saussure, 1903 (Orthoptera: Chorotypidae) Yetchom-Fondjo, Jeanne Agrippine Kekeunou, Sévilor Kenne, Martin Missoup, Alain Didier Huang, Huateng Ma, Libin Xu, Sheng-Quan Zootaxa 2019 2019-12-09 4706 2 311 331 Yetchom & Xu Yetchom-Fondjo & Kekeunou & Kenne & Missoup & Huang & Ma & Xu 2019 [151,706,801,828] Insecta Dzhajloutshellidae Hemierianthus Animalia Orthoptera 12 323 Arthropoda species mbongueensis sp. nov.   Figs. 7B, 8–9.    Material. Holotype: male, Cameroon, Littoral Region: type locality: Kompina, Mbongue village, 04°21’25’’N, 09°35’22’’E; Coll. Jeanne AgrippineYETCHOM-FONDJO; deposited in the Entomological Museum, Shaanxi Normal University, Xi’an, Shaanxi Province, China.   Description of male:body compressed, of medium size; integument rugose; fastigium of vertex longer, upcurved, with truncate apex and median carina present; fastigial foveola present, larger; interocular distance wider; face strongly flattened; antenna filiform, much shorter than head and pronotum together and 12 segmented; pronotum strongly saddle-shaped, without lateral carinae, median carina parabolic and crossed by two sulci, posterior margin concave, obtuse; prozona longer than metazona; ventral posterior angle of lateral lobes of pronotum substraight; lateral lobes of pronotum longer than its width; anterior margin of mesosternum strongly projected; elytra and wings fully developed, exciding end of abdomen and hind knee, oblique, almost touching dorsum of apophysis in resting position, with truncate apex; tympanum absent; precostal area of tegmina expanded; lower basal lobe of hind femur longer than upper one; anterior and median femora compressed, with expanded external margins; hind femur above with one light pre-apical ring; hind tibia with a small basal lobiform expansion; hind tibia with 17 outer and 15 inner spines; first segment of hind tarsus above with three teeth; inner posterior margins of terminal lobes of abdomen clearly overlapped, curved downward at apices, with very strong odontiform apophysis having strongly incurved apical part; apex of odontiform apophysis distant to the large basal part; inner margin of apophysis toothed in the middle; posterior margin of the 9 thabdominal tergite with a triangular median expansion; median expansion of the 10 thabdominaltergite clearly longer than lateral expansions of the 9 thabdominal tergite, dorsum slightly narrow in the middle, both terminal lobes separated in apical part, with expanded and truncate apices; terminal part of cerci angularly bent; apex of cerci narrow, with a downcurved spine; subgenital plate with incomplete median carina, posterior part triangular.  Coloration:body dark brownish; face dark yellowish, with one yellowish spot between eyes; basal segment of antenna dark in basal half and light yellow in apical half; anterior and median legs light yellow; inner side of hind femur with light basal median area; hind femur with a light pre-apical ring; hind tibia dark, with two light rings; elytra dark brownish, with yellow veins; wing completely dark.  Female:unknown  Measurements.Length of male body (from anterior margin of head to apex of subgenital plate): 17.35 mm; antenna: 3.48 mm; pronotum: 3.75 mm; tegmen: 15.29 mm; wing: 13.94 mm; hind femur: 10.93 mm.   Diagnosis:The new species  Hemierianthus mbongueensisYetchom & Xu  sp.nov.is similar to  H. bulefrom Cameroonand  H. descarpentriesifrom Gabon, from which it differs by the characters mentioned in the table 2below.   Distribution. Cameroon, Littoral region, Kompina, Mbongue.   Etymology.The new species is named after the typelocality. 2556814701 Coll. Jeanne Agrippine & Entomological Museum & Normal University & Xi'an Cameroon 4.3569446 Mbongue village 21 9.589444 Kompina 12 323 1 Shaanxi holotype