Coilodes lunae Basílio

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, European Journal of Taxonomy 914 (1), pp. 1-53 : 26-29

Coilodes lunae Basílio & Vaz-de-Mello sp. nov.

urn:lsid:zoobank.org:act:8152C1A8-E803-4ABA-97C1-DC36207F4392

Figs 6 , 14B

Diagnosis

Similar to Coilodes humeralis , C. mayae sp. nov., and C. parvulus , it is distinguished from C. humeralis and C. parvulus in the subrectangular shape of the clypeus, four times wider than long with strongly rounded anterior margin. As in C. parvulus and C. mayae sp. nov., its male genitalia lack a dorsal lobe of the tegmen. However, it is characterized by the presence of a transparent region on the distal half of the right paramere.

Etymology

Noun in the genitive singular. Coilodes lunae Basílio & Vaz-de-Mello sp. nov. is named after Luna Basílio Dantas, niece of the first author.

Type material

Holotype

BRAZIL • ♂; Rio de Janeiro, Itatiaia, “ PARNA ”; 22°25′46.1″ S, 44°37′03″ W; alt. 1100 m; 23–26 Dec. 2011; C. Araujo and R. Andrade leg.; pitfall; CEMT.

Paratypes (4 ♂♂ and 5 ♀♀)

BRAZIL – Bahia • 1 ♂; Itabuna, “ CEPLAC, Cabruca ”; 7 Jan. 2003; M. Santos leg.; CERPE • 1 ♂; Bahia, Ituberá, Pancada Grande , Mata Madura ; 9 Dec. 2009; P. Lopes, M. Campos and L. Oliveira leg.; DZUP • 1 ♀; same collection data as for preceding; CERPE . – Rio de Janeiro • 3 ♀♀; Itatiaia, “ PARNA ”; 22°25′46.1″ S, 44°37′03″ W; alt. 1100 m; 23–26 Dec. 2011; C. Araujo and R. Andrade leg.; pitfall; CEMT • 1 ♂; same collection data as for preceding; DZUP • 1 ♀; same collection data as for preceding • 1 ♂; Itatiaia, P.N. Itatiaia ; Mar. 1993; E. Grossi and P. Grossi leg.; CEMT .

Description

Male (holotype)

MEASUREMENTS. Length 6.3 mm. Width 3.5 mm. Body ( Fig. 6A–B ) convex, oval and shiny.

COLOUR. Head and pronotum black; scutellar shield and elytra dark brown with lighter stains; legs and venter fully dark brown.

HEAD ( Fig. 6C–D ). Surface slightly strigulate. Frons, in dorsal view, subrectangular; two tubercles in the middle; proximal border rounded; posterior margin as wide as the anterior one; lateral margin with slightly rectangular entrance; sparse punctures. Eye visible dorsally. Canthus strong; distinct area expanded downwards. Clypeus subrectangular, four times as wide as long; lateral margins rounded; anterior borders rounded; apex straight; setae thin and sparse, throughout the anterior margin dorsally; sparse punctures. 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 slightly rounded and superior margin straight; 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. 6E ). Convex; excavated medially; subtrapezoidal, posterior margin wider than anterior margin; anterior margin straight, angles subacute; posterior margin rounded and weakly 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. 6B ). Hypomeral surface strigulate, setose; prosternum ( Fig. 6B, D ) elevated at midlength, transversally grooved; anterior margin rounded and jagged, mesoventrite and metaventrite smooth.

LEGS. Procoxa conical; surface smooth. Protrochanter joint with the procoxa rounded, distally angulate. Profemur with posterior margin carinate. Protibia with 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 protibial second 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. 6F–K ). Lobe of tegmen absent; sclerotized region next to right paramere base; parameres asymmetrical; right paramere subrectangular, longer than wide, apex as wide as the base and middle region narrower than the apex and the base, transparent area inside the superior half of right paramere; left paramere with wide base and pointed, narrow apex, strongly curved outward.

Female

Length 6.0 mm. Width 3.5 mm.

Variation

Length ranging from 5.6 to 6.3 mm. Width ranging from 3.3 to 3.6 mm. Colour ranging from dark brown to black.

Geographical distribution

Brazil (Bahia, Rio de Janeiro) ( Fig. 14B ).

Biological data

There is no data on the behaviour of this species.

Figures

Fig. 6. Coilodes lunae Basílio & Vaz-de-Mello sp. nov., holotype ♂ (A–C, E–G, J–K), paratype ♀ at DZUP from Itatiaia, Rio de Janeiro (D), 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.

Fig. 14. Distribution map of species of Coilodes Westwood, 1846. A. Coilodes bezerrai Basílio & Vazde-Mello sp. nov.; Coilodes castaneus Westwood, 1846; and Coilodes edeiltae Basílio & Vaz-de-Mello sp. nov. B. Coilodes fumipennis Arrow, 1909; Coilodes humeralis (Mannerheim, 1829); and Coilodes lunae Basílio & Vaz-de-Mello sp. nov. C. Coilodes mayae Basílio & Vaz-de-Mello sp. nov.;Coilodes niger (Mannerheim, 1829) stat. rev.; Coilodes ovalis Robinson, 1948; and Coilodes parvulus Westwood 1846. D. Coilodes punctipennis Arrow, 1909; Coilodes ravii Basílio & Vaz-de-Mello sp. nov.; and Coilodes skelleyi Basílio & Vaz-de-Mello sp. nov.