Orthoptera Tettigoniidae as indicators of biodiversity hotspots in the Guinean Forests of Central and West Tropical Africa Author Massa, Bruno 0000-0003-2127-0715 Department of Agriculture, Food and Forest Sciences, University of Palermo, Viale Scienze 13, 90128 Palermo, Italy (retired). bruno. massa @ unipa. it; https: // orcid. org / 0000 - 0003 - 2127 - 0715 bruno.massa@unipa.it text Zootaxa 2021 2021-05-21 4974 3 401 458 journal article 6215 10.11646/zootaxa.4974.3.1 f4836c21-a062-4226-8865-1c2fbbbbbbe3 1175-5326 4778159 D830FF11-A538-4FDB-80C0-E32DE3D10D43 Tribe Preussiini Karsch, 1890 ( Figs. 40c , 41-44 ) Remarks . When Ragge (1981) described Brycoptera lobata , he did not establish which tribe of Phaneropterinae it could belong to. Characters of this taxon are very peculiar and represent an extreme modification of the habitus towards a foliaceous aspect eroded by the possible mandibles of a caterpillar; all the legs are laterally expanded and this makes it objectively difficult to recognize the tribe it belongs to ( Fig. 40c ). Here it is proposed to ascribe this taxon to the tribe Preussiini Karsch, 1890 , characterized as follows: foliaceous aspect, large size (body length: 22.0-26.0 mm), fastigium of vertex narrow, pointed and furrowed, as large as first antennal segment, face large and short, fastigium of frons with a small furrowed horn. Eyes oval, moderately prominent, scapus placed within an area with raised margins. Pronotum flat and smooth, nearly as long as high, with evident lateral margins and well-developed humeral excision, lateral lobes rounded on hind and lower margins. Legs short and stout; fore coxae armed, fore femora short and laterally flattened, fore tibiae dorsally sulcate, tympana conchate. Tegmina well developed, slightly shorter than hind wings. Tenth tergite unmodified, subgenital plate concave, long and narrow, provided with styli. Cerci stout and in-curved ( Massa 2016 ).