Desutterella n. gen., a new genus of Luzarinae (Orthoptera: Grylloidea: Phalangopsidae) and the first report of the Aracambiae group Souza-Dias & Desutter-Grandcolas, 2014 in the Amazon Author Souza-Dias, Pedro G. B. Author Campos, Lucas Denadai De Author Mello, Francisco De Assis Ganeo De text Zootaxa 2017 2017-11-16 4350 1 journal volume 31467 10.11646/zootaxa.4350.1.8 7dad899f-aa0c-4ae6-869b-822a6686570e 1175-5326 1050947 71604B67-59FF-4BCC-A4B7-97B3ABC2611E Desutterella Souza-Dias, Campos & de Mello n. gen. Etymology . Taxon named after the French Orthopterist Laure Desutter-Grandcolas, for her work on Neotropical Grylloidea. Type species. Desutterella manauara Souza-Dias, Campos & de Mello n. sp. Species included. Desutterella manauara Souza-Dias, Campos & de Mello n. sp. , Desutterella colombiana Souza-Dias , n. sp . Distribution. Amazon Forest, in Brazil ( Amazonas State), and Colombia ( Amazonas Department ). Diagnosis. Size small, slender, as the other genera from Aracambiae group. General coloration light to medium brown. Head, pronotum and legs I and II with sparse, thick setae. Fastigium with double row of thick setae. Three ocelli, large, circular. Maxillary palpi elongated, joints 3–5 whitish, pilose. Legs elongated, not annulated; tympanum on inner face of TI. Male . Metanotum with two projections rounded, whitish, glandular. Male FWs short, rounded, membranous; right FW medium brown, apex light brown, pilose; stridulatory file very reduced; veins and areas for sound propagation absent. Male genitalia . Male genitalia bearing a pair of genital glands within pseudepiphallic sclerite, connected to tubular pseudepiphallic arms. Pseudepiphallic arms curved outwards. Pseudepiphallic parameres highly sclerotized; PsP2 with two pairs of distinct projections. Female . Almost same size as males. Females FWs yellowish brown, transparent, small, reaching first abdominal tergite. Description. Occiput and vertex with thick setae ( Figs. 2 A–D , 5 A–C ). Fastigium wider than long, with double row of thick setae, below vertex level and not separated from it by line or furrow ( Figs. 2 A–D, G , 5 A–C, F ). Three ocelli, large, circular ( Figs. 2G , 5F ). Antennal scape longer than wide ( Figs. 2 A–D , 5 A–C ). Maxillary palpi elongated, joints 3–5 elongated, whitish, pilose, joint 4 longest ( Figs. 2J , 5E ); joint 5 curved, apex rounded ( Figs. 2J , 5E ). Pronotum DD longer than wide, with thick setae, mainly on cephalic margin ( Figs. 2 A–F , 5A, B ). Tergites slightly pubescent, without apparent tergal glands ( Figs. 2A, B, D , 5A ). Legs I and II not annulated, with thick setae. Tympanum on inner face of TI. TIII not annulated. Subapical spurs 4/4, with serrulation between and above them; inner distal subapical spur near upper apical; apical spurs 3/3, more developed on inner face; inner apical spurs: dorsal longest (iad), median slightly shorter (iam), ventral smaller (iav) (iad>iam>iav); outer apical spurs: median longest (oam), dorsal slightly shorter (oad), ventral smaller (oav) (oam>oad>oav). Basitarsus III with double row of spines. Male . Metanotum with two glandular projections whitish, rounded ( Figs. 2D, E , 3 A–B , 5D ). Male FWs short, reaching half of abdomen ( Figs. 1A , 2A , 5A ); right FW medium brown, pilose ( Figs. 2A, C , 5 A–C ); without specialized veins or areas for sound production and propagation; left FW membranous, transparent, lateral field medium brown ( Fig. 5D ). Supra anal plate not constricted medially ( Figs. 2H , 5H ); distal margin without extended angles ( Figs. 2H , 5H ). Subgenital plate elongated, pubescent ( Figs. 2I , 5G ). Male genitalia . Male genitalia bearing a pair of genital glands within pseudepiphallic sclerite, connected to tubular pseudepiphallic arms ( Figs. 4 A–C , 6 A–C ). Pseudepiphallus: pseudepiphallic sclerite transverse, ( Figs. 4 A–C , 6 A–C ); pseudepiphallic arms curved outwards ( Figs. 4A, B , 6A, B ); apex with opening duct, rounded. Rami elongated, connected to pseudepiphallic sclerite, reaching apex of ectophallic apodemes ( Figs. 4A , 6A ). Pseudepiphallic parameres (PsP) highly sclerotized ( Figs. 4 A–C , 6 A–C ); PsP2 with two pairs of distinct projections: one elongated, upcurved, lateral; second small, medial, semicircular, visible in dorsal view ( Figs. 4A , 6A ); PsP1 elongated ( Figs. 4B , 6B ). Ectophallic invagination. Ectophallic apodemes elongated, thin ( Figs. 4A , 6A ). Ectophallic fold sclerotized, surrounding apex of medio-posterior projection of endophallic sclerite ( Figs. 4B , 6B ). Endophallus. Endophallic sclerite large, flat ( Figs. 4B , 6B ); latero-posterior projections short; medio-posterior projection elongated ( Figs. 4B , 6B ). Endophallic apodeme paired, curved outwards, apex pointed ( Figs. 4B , 6B ). Female . In comparison with other Luzarinae crickets, females of Desutterella Souza-Dias, Campos & de Mello n. gen. are almost same-sized as males—in the Aracambiae genera, frequently the females are larger than males. Head, pronotum, abdomen and legs with thick setae ( Figs. 1B , 2B ). Females FWs small, translucent, reaching half of first tergite ( Figs. 2B, F ). Supra anal plate pubescent, slightly constricted medially ( Figs. 2K ). Subgenital plate pubescent, small ( Figs. 2L ). Female genitalia : copulatory papilla small, basis rounded, apex pointed centrally ( Figs. 3 D–F ).