A look beyond the colour: taxonomic revision of Coilodes Westwood, 1846 (Coleoptera, Hybosoridae), with the description of six new species Author Basílio, Daniel Silva A036BC96-736C-46C7-9959-A5980DECFAC4 Laboratório de Sistemática e Bioecologia de Coleoptera, Departamento de Zoologia, Universidade Federal do Paraná, Caixa Postal 19020, 81531 - 980, Curitiba, Paraná, Brazil. basilio.dsb@gmail.com Author Vaz-De-Mello, Fernando Zagury 2FF2B7D6-1A6B-43C1-9966-A1A949FB2B05 Laboratório de Scarabaeoidologia, Instituto de Biociências, Departamento de Biologia e Zoologia, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa, 2367, Boa Esperança, 78060 - 900, Cuiabá, Mato Grosso, Brazil. vazdemello@gmail.com Author Cherman, Mariana Alejandra EAF28053-7ABC-4F2D-9C46-CA7B1AEC2C5A Laboratório de Sistemática e Bioecologia de Coleoptera, Departamento de Zoologia, Universidade Federal do Paraná, Caixa Postal 19020, 81531 - 980, Curitiba, Paraná, Brazil. marianabioar@gmail.com Author Almeida, Lúcia Massutti de B3B2EF56-E27B-4822-B854-CB01A1D8E64B Laboratório de Sistemática e Bioecologia de Coleoptera, Departamento de Zoologia, Universidade Federal do Paraná, Caixa Postal 19020, 81531 - 980, Curitiba, Paraná, Brazil. lalmeida51@gmail.com text European Journal of Taxonomy 2023 2023-12-19 914 1 1 53 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2377/10437 journal article 10.5852/ejt.2023.914.2377 2118-9773 10407071 2ECE4DA6-97CA-4917-97F1-FE506998A2D0 Coilodes skelleyi Basílio & Vaz-de-Mello sp. nov. urn:lsid:zoobank.org:act: BC7D6A98-84F6-4DE1-ACAF-985335387750 Figs 13 , 14D Diagnosis Similar to Coilodes castaneus , it is distinguished by the presence of a compact lobe on the right side of the tegmen and by having the right paramere with a sinuous apex. Etymology Noun in the genitive singular. Coilodes skelleyi Basílio & Vaz-de-Mello sp. nov. is named after Paul E. Skelley, the aphodiine and erotylid specialist, and collector of most specimens known thus far. Type material Holotype PERU • ♂ ; Loreto , 80 km , NE Iquitos , Explorama Lodge, Rio Ynamono , 1 km from Amazon R. ; 1–5 Sept. 1992 ; P.E. Skelley leg.; human dung; FSCA . Paratypes ( 4 ♂♂ and 16 ♀♀ ) BRAZIL – Amazonas • 2 ♀♀ ; Benjamin Constant , “Guanabara II”; 10 Mar. 2004 ; Silva, P. H. leg.; CEMT • 1 ♂ ; same collection data as for preceding; DZUP • 3 ♀♀ ; same collection data as for preceding • 2 ♀♀ ; same collection data as for preceding; CEMT • 1 ♂ ; Pico da Neblina ; 0°40′ N , 66°00′ W ; 5–12 Nov. 1977 ; Robin Best leg.; CEMT . PERU – Loreto • 1 ♂ ; same collection data as for holotype • 5 ♀♀ ; same collection data as for holotype • 1 ♂ ; same collection data as for holotype; CEMT • 2 ♀♀ ; same collection data as for holotype • 2 ♀♀ ; same collection data as for holotype; DZUP . Description Male ( holotype ) MEASUREMENTS. Length 5.6 mm . Width 3.2 mm . Body ( Fig. 13A–B ) convex, oval and shiny. COLOUR. Head, scutellar shield, elytra and legs dark brown; pronotum and venter yellowish brown. HEAD ( Fig. 13C–D ). Surface slightly strigulate. Frons, in dorsal view, subrectangular; one long tubercle in the middle; proximal border rounded; posterior margin narrower than the anterior; lateral margin slightly arched; disc slightly strigulate. Eye visible dorsally. Canthus strong; distinct area expanded downwards. Clypeus subtrapezoidal; lateral margins weakly rounded; anterior borders rounded; apex straight; setae thin and sparse, throughout the anterior margin dorsally; disc strigulate. Labrum semicircular; slight medial projection; setae sparse, spreading along the entire dorsal border. Mandibles dorsally excavated, protruding beyond the apex of labrum. Labium with mentum subquadrate; inferior margin arched; lateral margins straight and superior margin slightly curved in the middle; disc strigulate, long setae on the margins. Maxilla subtriangular; long setae throughout surface. Antenna with 10 antennomeres; antennal club with three antennomeres; club with basal antennomere cupuliform. PRONOTUM ( Fig. 13E ). Convex; slightly excavated medially; posterior margin as wide as the anterior one; anterior margin arched, angles subacute; posterior margin rounded and produced medially; lateral margin convex, setae absent; punctures thin and sparse. SCUTELLAR SHIELD. Subtriangular; setae and punctures absent; apex punctate. ELYTRA. Double row of thick longitudinal punctures, sutural stria complete, formed by thick punctures. VENTER ( Fig. 13B ). Hypomeral surface strigulate, setose; prosternum ( Fig. 13B, D ) elevated at midlength, transversally grooved; anterior margin subtrapezoidal and flat, projected outward; mesoventrite and metaventrite smooth. LEGS. Procoxa conical; surface smooth. Protrochanter joint with the procoxa rounded, distally angulate. Profemur with posterior margin carinate. Protibial inner margin convex; carinate; single spur, slightly curved at the apex; external margin with three larger teeth and series of smaller denticles along the entire margin. Protarsi with tarsal insertion beneath the second protibial tooth. Mesothoracic and metathoracic legs smooth. Mesotrochanter and metatrochanter subtriangular with bifurcated apex. Mesofemur and metafemur carinate on posterior margin. Mesotibia and metatibia with erect setae; apex weakly expanded; pair of spurs with sharp apex. Tarsi with five tarsomeres; tarsal claws toothed medially. Fig. 13. Coilodes skelleyi Basílio & Vaz-de-Mello sp. nov., paratype ♂ at CEMT from Pico da Neblina, Amazonas, Brazil (A, F–G), paratype ♀ at DZUP from Loreto, Peru (B), paratype ♂ at DZUP from Benjamin Constant, Amazonas, Brazil (C, E), holotype ♂ (D, J–K), and graphical representation (H–I). A . Body, dorsal view. B . Body, ventral view. C . Head, dorsal view. D . Head, ventral view. E . Pronotum, dorsal view. F–K . Male genitalia. F . Dorsal view. G . Ventral view. H . Right paramere. I . Left paramere. J . Right side. K . Left side. Scale bars: A–B = 1 mm; C–E = 0.5 mm; F–K = 0.2 mm. ABDOMEN. Six ventrites with recumbent setae. GENITALIA ( Fig. 13F–K ). Lobe of tegmen on the right side, with rounded apex, measuring ⅔ of the distance between the lobe base and the paramere base; sclerotized region next to right paramere base; parameres asymmetrical; right paramere subrectangular, longer than wide, with curved apex; left paramere, spoon-shaped, dislocated to dorsal region. Female Length 5.2–6.7 mm . Width 3.1–4.2 mm . Variation Length ranging from 5.2 to 6.7 mm . Width ranging from 3.1 to 4.2 mm . Body colour in dorsal view sometimes uniform, ranging from yellowish brown to dark brown. Frons lateral margins may have a strong rectangular entrance. Geographical distribution Peru ( Loreto ); Brazil (Amazonas) ( Fig. 14D ). Biological data Species collected in human faeces (label data).