Review of the tribe Amorphopini (Orthoptera: Tetrigidae: Metrodorinae): Pygmy moss-lichen tetrigids from the Amazon rainforest Author Cadena-Castaneda, Oscar J. Universidad INCCA de Colombia. Grupo en Ecologia Evolutiva y Biogeografia Tropical ECOBIT, Bogota, Colombia. & Universidad Distrital Francisco Jose de Caldas. Grupo de Investigacion en Artropodos " Kumangui ", Bogota, Colombia. ojccorthoptera@gmail.com Author Silva, Daniela Santos Martins Instituto de Ciencias Biologicas e da Saude, Universidade Federal de Vicosa (UFV) - campus Rio Paranaiba, 38810 - 000, Rio Paranaiba - MG, Brazil. Author Mendes, Diego Matheus De Mello Laboratorio de Entomologia Sistematica, Urbana e Forense. Instituto Nacional de Pesquisas da Amazonia (INPA), CEP 69060 - 001, Manaus, AM, Brazil. Author Pereira, Marcelo Ribeiro Instituto de Ciencias Biologicas e da Saude, Universidade Federal de Vicosa (UFV) - campus Rio Paranaiba, 38810 - 000, Rio Paranaiba - MG, Brazil. Author Domenico, Fernando Campos De Museu de Zoologia da Universidade de Sao Paulo, Universidade de Sao Paulo (USP), 04263 - 000, Sao Paulo - SP, Brazil. Author Sperber, Carlos Frankl Museu de Zoologia da Universidade de Sao Paulo, Universidade de Sao Paulo (USP), 04263 - 000, Sao Paulo - SP, Brazil. text Journal of Orthoptera Research 2020 29 1 45 62 http://dx.doi.org/10.3897/jor.29.33717 journal article http://dx.doi.org/10.3897/jor.29.33717 1937-2426-1-45 647877CDF0434952841920D0F18EA28C 1D3609CADB1D568ABC40741E117DB0B1 Eomorphopus antennatus Bolivar , 1887 Figs 8 , 9 , 10 , 11 , 14 Neotype. - COLOMBIA • ♀; Amazonas, San Juan de Loreto Yacu; 03°37'0"S; 70°33'59.3"W; 180 m; N. Ruiz leg. (CAUD). Description Female. This species is very similar to E. granulatus , but E. antennatus is larger. Furthermore, it is differentiated by the following characters: Body surface more granulated than E. granulatus (Fig. 8A ). Eyes globose and prominent, fastigium visible between the eyes, median carina slightly developed and continuing towards frontal costa; area of fastigium to occiput abundantly granulated (Fig. 8B ). Pronotum with rounded sculpturing on prozona, median carinae undulate at level of humeral sinus, length of infrascapular area as long as fore femur (Fig. 8C ); prolongation of the pronotum constricting and resuming its thickness rapidly, close to the distal third, apex of the lateral lobe of the side projection triangular shaped and moderately sharp; anterior and posterior margin of pronotum truncated; lateral lobes directed sideways (Fig. 8D ). Fore femur flattened laterally, dorsal and ventral margins carinated with two or three undulations in the dorsal margin and one or two in ventral margin (Fig. 8E ); middle femur shield like in shape, flattened laterally and strongly foliaceous (mid-femur notably wider than E. granulatus ), dorsal and ventral margin slightly undulated; ventral margin expanded, with rounded teeth in the apex (Fig. 8F ). Subgenital plate triangular shaped, slightly longer than wide, with a small mid triangular tooth (Fig. 8G ). Male. Similar to the female, distinguished by the ambisexual characters (Fig. 9A-F ): subgenital plate prolonged, in ventral view triangular shaped and with rounded apex (Fig. 9G ), cerci cylindrical, slightly reducing in thickness from the base to the apex (Fig. 9H ). Variations Measurements (in mm) The main variations observed in this species are related to the coloration, that will be detailed later. Morphologically, the undulations of the middle and anterior femur may be more conspicuous in some individuals than others, although it was observed that they are more conspicuous in males than in females. Moreover, the undulations of the dorsal margin of the anterior femur can vary from two, three, or four, distorting the use of this character to separate the two species of Eomorphopus . ( Bruner (1910) suggested that E. granulatus had three undulations and E. antennatus had two). Measurements (in mm) Female. CFP: 19.4-19.5; PL: 17.4-17.9; PLB: 5.5-5.9; FF: 3.4-3.6; FL: 2.7-3; MFL: 3.3-3.4; MTL: 3-3.3; HL: 7.1-7.3; HW: 1.9-2.2; HL: 6.7-6.8. Male. CFP: 18.3; PL: 16.4; PLB: 5.5; FF: 2.8; FL: 2.7; MFL: 3.6; MTL: 2.8; HL: 7.4; HW: 2.3; HL: 6.1. Specimens examined Museum specimens. COLOMBIA • 1♀; same data as neotype • 1♀; Amazonas, Leticia; 27 Oct. 1996. • 1♀; La Pedrera; 100 m; 18 May. 2011; C. Linares. • 1♂; Caqueta , Florencia, Vda. La Victoriosa, Centro de Investigaciones Amazonicas CIMAZ, Macagual. 01°30'37"N , 75°40'29"W ; 233 m.; 20 Sep. 2017; A. Quiroga leg. • 1♂; Meta, San Juan de Arama, Bosque de Galeria, Cano Curia; 24 Sep. 1987. (CAUD). BRAZIL, • 1♀1♂; Amazonas, Manaus, Bosque da Ciencia , INPA; 1-20 May. 2010; J.T. Camara leg. • 1♀; same data collection data as for preceding; 22 May. 2009; coleta manual, T. Mahlmann leg. • 1♀; Amazonas, Rio Abacaxis; 05°15'09"S , 58°41'52"W ; 35m; 27-29 May. 2008; Armadilha luz sobre o barco, J.A. Rafael e equipe leg. • 1♂; Amazonas, Manaus, Reserva Adolpho Ducke, km 26; 02°55'49"S , 59°58'31"W ; 30 Apr. - 4 May. 2014; Coleta manual, K.F.S. Cezar leg. • 2♀; Amazonas, Tefe , Lago Tefe , Ilha em frente de Tefe ; 03°19'55"S , 64°41'11.9"W ; 1 Sep. 2018; Coleta em floresta de varzea , D.M.M. Mendes, J.C. Oliveira and J. Oliveira leg. • 1♂; Amazonas, Uarini, Boca do Mamiraua ; 03°07'29.4"S , 64°47'32.1"W ; 5 Sep. 2018; Coleta em floresta de varzea , D.M.M. Mendes, J.C. Oliveira and J. Oliveira leg. • 1♀; Amazonas, Careiro Castanho, BR-319, km 181, Sitio Sao Paulo; 04°12'48"S , 60°49'04"W ; 24 Mar. 2017; J.A. Rafael and F.F. Xavier F. leg. Photographic records . PERU, • 1♀; Loreto Tamshiyacu-Tahuayo Reserve. Comments Eomorphopus antennatus was described by Bolivar (1887) as Amorphospus, and in 1907, Hancock reallocated this species to the new genus Eomorphopus . E. antennatus is very similar to E. granulatus but is distinguished by the biundulated fore femur dorsal margin vs. the triundulated fore femur dorsal margin in E. granulatus ( Bruner 1910 ). E. antennatus has several records: Peru, Guyana, Venezuela, Ecuador, Suriname, Brazil, and Trinidad Island. Currently, the depository of the primary type is unknown ( Cigliano et al. 2019 ) and there is a female from Alto Amazonas in Bolivar's Tetrigoidea collection, housed at the National Museum of Natural History, Madrid, Spain (MNCN) ( Paris 1993-1994 ). A neotype specimen is designated as the carrier-name of the species and is supported by the following reasons ( ICZN 1999 ) Art. 75) 1. The status of the only type specimen is lost. It was deposited in MNCN, but this specimen could not be traced from its original description (Arts. 75.3.1., 75.3.4.). 2. The type female specimen has as type locality Peru, Upper Amazonas, but not having specimens from the same locality, a female from a nearby and available locality of similar geological characteristics was designated (Arts. 75.3.5, 75.3.6; recommendation 75A ICZN). 3. A detailed description is written for the neotype that is in agreement with the general idea of the identity of this species, differentiating it from other taxa, ensuring the recognition of the designated specimen, and conveying a consensus in identifications and wide distribution that characterizes the species, ensuring that most identifications from the past are correct (Arts. 75.3.2, 75.3.3, 75.3.5; recommendation 75B). 4. The neotype is deposited in CAUD, a collection of a recognized scientific institution, which maintains adequate facilities to preserve the types and makes them accessible for study (Art. 75.3.7). Fig. 7. Live Eomorphopus granulatus from Brazilian Amazon . Fig. 8. Eomorphopus antennatus (female) A. Habitus in lateral view; B. Frons; C. Head, lateral lobes of pronotum and tegmina in lateral view; D. Habitus in dorsal view; E. Fore-femur; F. Mid-femur; G. Terminalia in ventral view; and H. In lateral view. Fig. 9. Eomorphopus antennatus (male) A. Habitus in lateral view B. Frons; C. Head, lateral lobes of pronotum and tegmina in lateral view; D. Habitus in dorsal view; E. Fore-femur; F. Mid-femur; G. Terminalia in ventral view; and H. In lateral view. Fig. 10. Live Eomorphopus antennatus female from Brazilian Amazon. Fig. 11. Live Eomorphopus antennatus male from Brazilian Amazon.