Eomorphopus antennatus Bolivar , 1887

Cadena-Castaneda, Oscar J., Silva, Daniela Santos Martins, Mendes, Diego Matheus De Mello, Pereira, Marcelo Ribeiro, Domenico, Fernando Campos De & Sperber, Carlos Frankl, 2020, Review of the tribe Amorphopini (Orthoptera: Tetrigidae: Metrodorinae): Pygmy moss-lichen tetrigids from the Amazon rainforest, Journal of Orthoptera Research 29 (1), pp. 45-62 : 45

publication ID	https://dx.doi.org/10.3897/jor.29.33717
publication LSID	lsid:zoobank.org:pub:647877CD-F043-4952-8419-20D0F18EA28C
persistent identifier	https://treatment.plazi.org/id/D3332F88-BB9F-5EB1-9E85-A7E75F5E7B4E
treatment provided by	Journal of Orthoptera Research by Pensoft
scientific name	Eomorphopus antennatus Bolivar , 1887
status

Treatment

Eomorphopus antennatus Bolivar, 1887 View in CoL Figs 8 View Fig. 8 , 9 View Fig. 9 , 10 View Fig. 10 , 11 View Fig. 11 , 14 View Fig. 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 View Fig. 8 ). 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 View Fig. 8 ). 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 View Fig. 8 ); 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 View Fig. 8 ). 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 View Fig. 8 ); 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 View Fig. 8 ). Subgenital plate triangular shaped, slightly longer than wide, with a small mid triangular tooth (Fig. 8G View Fig. 8 ).

Male. Similar to the female, distinguished by the ambisexual characters (Fig. 9A-F View Fig. 9 ): subgenital plate prolonged, in ventral view triangular shaped and with rounded apex (Fig. 9G View Fig. 9 ), cerci cylindrical, slightly reducing in thickness from the base to the apex (Fig. 9H View Fig. 9 ).

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♂; Caquetá, Florencia, Vda. La Victoriosa, Centro de Investigaciones Amazónicas 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, Caño Curia; 24 Sep. 1987. (CAUD). BRAZIL, • 1♀1♂; Amazonas, Manaus, Bosque da Ciência, INPA; 1-20 May. 2010; J.T. Câmara 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, Tefé, Lago Tefé, Ilha em frente de Tefé; 03°19'55"S, 64°41'11.9"W; 1 Sep. 2018; Coleta em floresta de várzea, D.M.M. Mendes, J.C. Oliveira and J. Oliveira leg. • 1♂; Amazonas, Uarini, Boca do Mamirauá; 03°07'29.4"S, 64°47'32.1"W; 5 Sep. 2018; Coleta em floresta de várzea, D.M.M. Mendes, J.C. Oliveira and J. Oliveira leg. • 1♀; Amazonas, Careiro Castanho, BR-319, km 181, Sítio São 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 Bolívar (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 Bolívar’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).