Ateuchus (Lobidion) fedescobari, Montoya-Molina & González-Alvarado & Giraldo-Echeverri & Vaz-de-Mello, 2021
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https://doi.org/ 10.1080/00222933.2021.1895348 |
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https://treatment.plazi.org/id/4423C35A-8F30-F033-29E2-FD96A149FA1A |
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Plazi |
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Ateuchus (Lobidion) fedescobari |
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sp. nov. |
Ateuchus (Lobidion) fedescobari View in CoL sp. nov.
( Figure 2 View Figure 2 (a–h), 3(a–d) and 4)
Diagnosis
A. (Lobidion) fedescobari sp. nov. can be distinguished from A. punctatissimum by having a coppery-coloured body surface ( Figures 2 View Figure 2 (a–d), 3(a–d)). Pronotal disc microsculptured, with scattered ocellate punctuation, posterior area displaying dense ‘U’-shaped punctuation ( Figures 2 View Figure 2 (a), 3(a,d)). Sixth ventrite with two parallel medial acute dentiform processes directed posteriorly ( Figures 2 View Figure 2 (b,d), 3(b)). In males, anterior margin of metafemora with a dentiform process resembling a hook ( Figure 2 View Figure 2 (b,d)).
Description
Holotype male. Dorsal and ventral surface coppery, opaque. Length: 7.8 mm. Head subtriangular. Anterior third of clypeal surface smooth, glossy and rugose sculpturing, reaching margin of genae; medial and basal third, surface microsculptured, with fine well-delimited glossy punctures ( Figure 2 View Figure 2 (a,c)). Pronotum gibbous, wider than long ( Figure 2 View Figure 2 (a)). Pronotal disc microsculptured, with scattered ocellate punctuation; posterior area with ‘U’-shaped punctuation ( Figure 2 View Figure 2 (a)), separated by the diameter of a puncture. Anterior pronotal angle obtuse directed towards front, pronotal medial angle feebly protruded and directed ventrally. Margin between anterior and medial angles curved. Anterior and lateral margins shiny and impunctate, posterior margin thinnest. Metasternal disc surface covered by microsculpture and simple well-impressed punctures. Lateral edges covered by rugose sculpture ( Figure 2 View Figure 2 (b)). Abdomen sixth ventrite widest, with two parallel medial acute dentiform processes, directed posteriorly ( Figure 2 View Figure 2 (b,d)). Elytra interstriae microsculptured, with fine scattered lustrous punctures. Striae strongly marked; punctures as wide as the stria, punctures separated by twice the diameter of a puncture on the elytral disc. Seventh stria not reaching the elytral base ( Figure 2 View Figure 2 (a)). Elytral epipleuron smooth. Legs anterior edge of profemora flat. Anterior edge of metafemora bearing a medial excavation; anterior margin with dentiform process hook-shaped ( Figure 2 View Figure 2 (d)). Pygidium surface microsculptured with fine punctation, apical edge truncate ( Figure 2 View Figure 2 (d)).
Aedeagus parameres subtriangular and symmetric, basal edge rounded. Phallobase twice as long as the parameres ( Figure 2 View Figure 2 (e,f)). Other characters of the aedeagus and endophallus as represented in Figure 2 View Figure 2 (g,h).
Sexual dimorphism
Females differ from males as follows: Head cephalic carina horizontal and arcuate in dorsal view, clypeus not emarginated, strongly upturned ( Figure 3 View Figure 3 (a,b)). Pronotum medial pronotal angle rounded ( Figure 3 View Figure 3 (a)). Pronotal posterior surface with denser ‘U’- shaped punctuation ( Figure 3 View Figure 3 (d)). Legs anterior margin of the metafemora not modified.
Etymology fedescobari , named after Federico Escobar Sarria, friend and great scientist who has contributed to the study of Scarabaeinae in Colombia and worldwide. Federico is also the collector of one of the three know specimens of the species.
Type material
Holotype. Male at CEMT labelled: COLOMBIA, Fonseca , GUAJIRA. 211M, 10º49.488 N 72º49.476 W, viii.2014, Montoya-M, S. {white, p}/ CEMT CUIABÁ 00059667 {white, p} ( Figure 2 View Figure 2 (a–h)) GoogleMaps ; Paratype female at CEMT labelled: COLOMBIA: Fonseca , GUAJIRA . 211M, 10º49.488 N 72º49.476 W, viii.2014, Montoya-M, S. { white, p}/ CEMT CUIABÁ 00059666 {white, p} ( Figure 3 View Figure 3 (a–d)) ; Paratype at IAvH labelled: COLOMBIA, MAGDALENA . Isla de Tierra Bomba, coll . Escobar, F . {white, p}; Paratype female at CJAN labelled: COLOMBIA: Atlántico: Piojó [secondary dry forest], 10º44 ʹ 11.03” N, 75º06 ʹ 26” W, 450 m, VII GoogleMaps .2003 [pitfall with human faeces], Jorge A . Noriega leg GoogleMaps . {white, p}/ Ateuchus sp. 1 Det : J. Noriega . { white,p}/ CJAN 00221 . {white,p}.
Distribution
Northern Caribbean coast of Colombia . La Guajira and Magdalena departments. Specimens found in tropical dry forest.
Natural history
The author collected the specimens using pitfall traps baited with human faeces.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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