Coilodes skelleyi Basilio
Creators: name: Basílio, Daniel Silva
name: Vaz-De-Mello, Fernando Zagury
name: Cherman, Mariana Alejandra
name: Almeida, Lúcia Massutti de
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hybosoridae
Coilodes
Coilodes skelleyi

description: 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.
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).
description: Published as part of Basílio, Daniel Silva, Vaz-De-Mello, Fernando Zagury, Cherman, Mariana Alejandra & Almeida, Lúcia Massutti de, 2023, A look beyond the colour: taxonomic revision of Coilodes Westwood, 1846 (Coleoptera, Hybosoridae), with the description of six new species, pp. 1-53 in European Journal of Taxonomy 914 (1) on pages 45-47, DOI: 10.5852/ejt.2023.914.2377, http://zenodo.org/record/10407071