نبذة مختصرة : Hamma spinellii sp. nov. urn:lsid:zoobank.org:act: C19025BA-2C70-4CD0-BF61-68ED3716A5E0 Figs 2, 4C, 5C Diagnosis Species belonging to the genus Hamma with thorax eminently brown, pronotum smooth and metopidium not densely tuberculate; suprahumeral horns with a laterally pointing thorn; a posterior process with four nodes, V-shaped in lateral view between the second and fourth nodes; last node roundish in dorsal view, ending in a well-developed terminal spine. Pterostigma almost three times longer than broad. Differential diagnosis The general light brown colour is diagnostic, heimi and nigrum sp. nov. being black, and caneparii sp. nov. having a mosaic of russet brown and black. Other diagnostic characters with respect to caneparii sp. nov. are: – the similarity of the width and height of the basal element of the suprahumeral horns (frontal view) (Fig. 4C): in spinellii sp. nov. the w/h ratio is 1; in caneparii sp. nov. the w/h ratio is 0.66; – caudal node of the posterior process half the width of the head in spinellii sp. nov.; ⅔ the width in caneparii sp. nov. (dorsal view); – anchor-like third node (Fig. 5C) thinner than in caneparii sp. nov. (dorsal view); – length of the posterior process clearly exceeding abdominal length in spinellii sp. nov.; not exceeding the abdominal terminalia in caneparii sp. nov. (lateral view); – pterostigma (Fig. 5C) longer in spinellii sp. nov.: l/w ratio 3.4 in spinellii sp. nov.; 2.4 in caneparii sp. nov. Other diagnostic characters with respect to heimi and nigrum sp. nov. include: – upper margin of the head roughly square (Fig. 4C); – metopidium (Fig. 4C) tuberculate; – suprahumeral horns (Fig. 4C) with a robust straight thorn, not curving upwards in frontal view; – anchor-like third node (Fig. 5C) posteriorly prolonged (dorsal view); rhomboidal or roughly circular in nigrum sp. nov. and heimi. Etymology The species is dedicated to Dr Matteo Spinelli, Milano. Material examined Holotype GABON • ♀; Ogooué Ivindo, Mont Sassamongo, Batouala; 30 Nov. 2012; A. Susini leg.; MSNS. ...
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