Miritius claudius Morais & Linzmeier

Morais, Ana Carla C., Ribeiro-Costa, Cibele S. & Linzmeier, Adelita M., 2016, On the taxonomy of the Brazilian flea beetle genus Miritius Bechyné & Bechyné (Coleoptera: Chrysomelidae: Galerucinae: Alticini: Monoplatina) with description of two new species, Zootaxa 4067 (3), pp. 334-344 : 338-340

publication ID

https://doi.org/ 10.11646/zootaxa.4067.3.3

publication LSID

lsid:zoobank.org:pub:6624703A-17CE-4146-880C-DA080C58B1AD

DOI

https://doi.org/10.5281/zenodo.6075857

persistent identifier

https://treatment.plazi.org/id/038487CC-FFBF-A85B-9581-31E1F304FC1F

treatment provided by

Plazi

scientific name

Miritius claudius Morais & Linzmeier
status

sp. nov.

Miritius claudius Morais & Linzmeier , new species

( Figs 11–21 View FIGURES 11 – 21 )

Description. Body 3.6–4.5 mm long and 1.5–2 mm wide (N = 10), pubescent, flat in lateral view ( Fig. 12 View FIGURES 11 – 21 ). Color light brown to dark brown with dark brown markings as follows: one on anterior third of elytron, elongate, near sutural margin of elytra and another rounded close to epipleural margin, on second third of elytra forming a triangular patter ( Fig. 11 View FIGURES 11 – 21 ). There is another laterally on epipleural region of humeral calli ( Fig. 12 View FIGURES 11 – 21 ), a longitudinal midline in the pronotum which extends to antennal calli and in hypomeron in some exemplars.

Head ( Fig. 13 View FIGURES 11 – 21 ) with supraorbital pore indistinguishable. Vertex with gold pilosity. Antennal calli well-marked, separated by narrow and deep midfrontal sulcus. Suprantennal and orbital sulci absent. Suprafrontal sulcus well developed. Supraorbital and frontolateral sulci slightly developed. Supracalinal sulcus incomplete, extending from midfrontal sulcus until middle of antennal calli. Midcranial suture well developed. Frontal ridge narrow, well developed, extending from interantennal region to frontoclypeal region, vanishing gradually. Anterofrontal ridge narrow, extending to mandible base, weakening gradually. Frontoclypeal suture absent. Frontoclypeal region poorly punctate and pilose. First antennomere 2x longer than second; third to fifth antennomeres narrower and longer than other, third antennomere longest of all; sixth antennomere slightly shorter than and as wide as the previous. Antennomeres 7-11 all thicker and more pilose than previous and gradually decrease in length; eleventh slightly longer than the previous one; seventh and eighth antennomeres dark brown; ninth to eleventh antennomeres light yellow ( Fig. 11 View FIGURES 11 – 21 ). Gena 0.6x the length of eye. Labrum rectangular with anterior angles rounded.

Pronotum transverse, 1.3x wider than long; anterior margin straight, posterior margin almost straight; surface opaque, densely punctate, pilosity dense and short ( Fig. 14 View FIGURES 11 – 21 ). Pronotal disc with slight longitudinal depression medially. Humeral calli well developed and basal calli slightly developed, forming a slight depression between them. Elytral apex slightly truncate.

Metafemur 1.5x longer than wide ( Fig. 15 View FIGURES 11 – 21 ). Metatibia thickened at base and attenuated near apex, straight in lateral view; inner and outer dorsal margins diverge at base and converge in middle third, in dorsal view; outer dorsal margin with pre-apical projection, followed by numerous teeth; metatibial spur short; first and second metatarsomeres similar in size, 2x longer than third, fourth metatarsomere globose, dark brown, nearly as long as first and second together ( Fig. 16 View FIGURES 11 – 21 ).

Abdomen with ventrite IV constricted medially. Aedeagus with lateral margins almost parallel, apex rounded, slightly more sclerotized, basal part long in ventral view ( Fig. 20 View FIGURES 11 – 21 ). Basal part long and slightly bent ventrally in lateral view. Internal sac of median lobe with a sclerite large, C-shaped at apex and spicules distributed in apical third ( Fig. 21 View FIGURES 11 – 21 ). Tignum with posterior area spatulated, wider than long ( Fig. 18 View FIGURES 11 – 21 ). Vaginal palpi diverging largely medially ( Fig. 19 View FIGURES 11 – 21 ). Spermatheca with receptacle and pump indistinct. Duct U-shaped ( Fig. 17 View FIGURES 11 – 21 ).

Type material. Miritius claudius Holotype ♂. Labels: 1) Brasil, MT, J. & B. Bechyné; 2) Chapada dos Guimarães, 30.1.1961; 3) P-TYPE, Miritius claudius n., J. Bechyné det., 1967; 4) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG).

Etymology. The specific name claudius proposed by Bechyné was maintained and it presumably refers to a person’s name.

Material examined. 1 exemplar ♂. Labels: 1) Brasil, MT, J. & B. Bechyné; 2) Chapada dos Guimarães, 3.2.1961; 3) Holotype ♂, Miritius claudius n., J. Bechyné det., 1962; 4) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG). 1 exemplar ♀. Labels: 1) Brasil, MT, J. & B. Bechyné; 2) Chapada dos Guimarães, 3.2.1961; 3) Allotype ♀, Miritius claudius n., J. Bechyné det., 1967; 4) Miritius claudius Morais & Linzmeier det. 2015 [microtube with female genitalia] ( MPEG). 1 exemplar ♂. Labels: 1) Brasil, MT, J & B. Bechyné; 2) Chapada dos Guimarães, 30.1.1961; 3) Miritius claudius Moraes & Linzmeier det. 2015 [microtube with male genitalia] ( MPEG). 1 exemplar ♀. Labels: 1) Chapada dos Guimarães, 2.2.1961; 2) Brasil, MT, J. & B. Bechyné; 3) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG). 1 exemplar ♂. Labels: 1) Chapada dos Guimarães, 4.2.1961; 2) Brasil, MT, J. & B. Bechyné; 3) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG). 6 exemplars (2 ♂; 4 ♀). Labels: 1) Chapada dos Guimarães, 5.2.1961; 2) Brasil, MT, J. & B. Bechyné; 3) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG). 2 exemplars (1 ♂; 1 ♀). Labels: 1) Chapada dos Guimarães, 6.2.1961; 2) Brasil, MT, J. & B. Bechyné; 3) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG). 3 exemplars (1 ♂; 2 ♀). Labels: 1) Buriti, 8.2.1961; 2) Brasil, MT, J. & B. Bechyné; 3) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG). 1 exemplar ♂. Labels: 1) Buriti, 9.2.1961; 2) Brasil, MT, J. & B. Bechyné; 3) Miritius claudius Morais & Linzmeier det. 2015 ( MPEG). 98 exemplars (37 ♂; 61 ♀). Labels: 1) BR, MS, Dourados, 22º13’41.60” S 55º00’46.65” W, 05.X.2012, by hand, Linzmeier, A.M., col. 2) Miritius claudius Morais & Linzmeier det. 2015 (30 ♂ and 50 ♀ at DZUP; 7 ♂ and 11 ♀ at MuBio).

Comments. Among the Miritius species M. claudius is the longest and flattest. Miritius claudius and M. egleri have a large sclerite, globose, C-shaped in the internal sac of the median lobe of aedeagus and antennomeres 7 and 8 darker. However, M. claudius can be separated from M. egleri by the following characters: vertex with gold pubescence (silver in M. egleri ); presence of a longitudinal midline darker in the pronotum which extends to antennal calli in some specimens (absent in M. egleri ); suprafrontal and frontolateral sulci present (absent in M. egleri ), elytral markings forming a triangular pattern (different pattern in M. egleri ), presence of spicules in the apical third of internal sac of median lobe (absent in M. egleri ).

MPEG

Museu Paraense Emilio Goeldi

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Miritius

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