Research Article |
Corresponding author: Lúcia Massutti de Almeida ( lalmeida@ufpr.br ) Academic editor: Alessandra Rung
© 2017 Julissa M. Churata-Salcedo, Lúcia Massutti de Almeida.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Churata-Salcedo JM, Almeida LM (2017) Review of Coeliaria (Coleoptera: Coccinellidae: Chnoodini). Zoologia 34: 1-11. https://doi.org/10.3897/zoologia.34.e19866
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Coeliaria Mulsant, 1850 is revised based on the external morphology and genitalia of the adults and is distinguished from the other Chnoodini by the following characters: dorsal surface pubescent; antenna 11-segmented; hypomera with rounded fovea; tibia flat and angulated; abdominal postcoxal line incomplete, recurved and with oblique line. A new species, Coeliaria castanea sp. nov., from Brazil, and two new combinations, are proposed: Coeliaria bernardinensis comb. nov. and C. luteicornis comb. nov., expanding the distribution of the genus to Bolivia and Paraguay.
Coccinellinae , Neotropical Region, taxonomy
Coccinellidae Latreille, 1807 is an ecologically and morphologically diverse group of predators that are often used in biological control programs of insect pests (
Since the establishment of Coccinellidae as a family, several authors have proposed classification systems for it. Beginning in the second half of the nineteen-century,
The Brazilian species of Exoplectra were reviewed by
In this paper, Coeliaria is revised based on its external morphology and genitalia. One new species from Brazil and two new combinations are proposed, expanding the size and distribution records of the genus.
The specimens examined were provided by the California Academy of Sciences, California, USA (
Parts that were dissected from specimens (mouthparts, antennae, legs, abdomen and genitalia) were stored in microvials with glycerin. The microvials were pinned together with the respective specimen. Photographs were taken using a Sony Cyber-shot (DSC-W300) digital camera coupled to a Zeiss Stemi SV6 compound stereomicroscope and a Zeiss Stereo Discovery Standard 20 microscope.
The terminology used in the descriptions follows
The labels of the type material are arranged in sequence from top to bottom, with the data for each label within double quotes (“ ”); slashes (/) separate the rows, and the information between brackets ([]) provides additional details recorded on the labels.
Coeliaria
Mulsant, 1850: 1042 (description);
Exoplectra erythrogaster Mulsant, 1850 (original designation).
Coeliaria is a Neotropical genus that resembles Exoplectra Mulsant, 1850, and Gordonita González, 2013, by the angulation of the tibia. Coeliaria is distinguished from Exoplectra by the presence of a fovea in the hypomera; pronotum with the inner angles more prominent and emarginated. In Gordonita, the fovea of the hypomera is small and deep; the body is elongated and depressed. Coeliaria is distinguished from the other genera of Chnoodini by the following combination of characters: Body black or dark, without spots; dorsal surface pubescent; antenna 11-segmented; labrum truncated; hypomera with rounded fovea; tibia flat and angulated; abdomen with five visible sternites (females) or six sternites (males); abdominal postcoxal line incomplete, recurved, oblique line present.
Body rounded or oval, convex, with yellowish or whitish pubescence, fine and dense, with punctuation fine and sparse. Integument brownish or black, with green, bluish, or bronze metallic reflections, without spots. Ventral surface reddish, brown, or black. Head black or brownish; clypeus merged with forehead, without fronto-clypeal suture, expanded laterally and with rounded front edge, distinctly emarginated; eyes divided by the gena (Figs
Tegmen with penis guide and symmetrical parameres; penis slender, with developed penis capsule.
Coxites elongated and sub-triangular; spermatheca C-shaped, simple.
Scanning electron microscopy of Coeliaria erythrogaster: (1) head, dorsal view, (2) head, ventral view; (3) antenna, lateral view; (4) labrum; (5) mandibles, dorsal view, (6) mandibles, ventral view; (7) labium; (8) prosternal process; (9) hypomera; (10) elytra, ventral view; (11) leg, dorsal view; (12) metathorax, ventral view.
1. | Body black or dark brown, with reflections of different colors | 2 |
1’. | Body black, without reflections, elytra very expanded, 5.67 to 10.0 mm (Figs |
C. erythrogaster Mulsant, 1850 |
2. | Body longer than wide, black, with bronze or blue reflections, 3.08 to 4.0 mm (Figs |
C. luteicornis (Mulsant, 1850), comb. nov. |
2’. | Body as long as wide, black or brown, with reflections of other colors | 3 |
3. | Bluish reflections, body 3.0 to 4.0 mm | C. bernardinensis (Brèthes, 1925), comb. nov. |
3’. | Brown reflections, body 5.0 mm (Figs |
C. castanea sp. nov. |
Coeliaria
erythrogaster
Mulsant, 1850: 1042 (description);
Exoplectra
erythrogaster
Mulsant, 1850: 916 (original description);
Male. Length 5.67–10.00 mm, width 5.42–9.17 mm. Body hemispherical, rounded and convex, with fine pubescence, short, thick, whitish or yellowish, with thin, sparse punctuation; integument black and dark brown (Figs
Similar to the male. Coxites longer than wide, sub-triangular, with long bristles; mammiliform style (Fig.
It was only possible to examine photographs of the syntype (Figs
Bolivia. Santa Cruz: Roboré, 28-II to 1-III-1954, C. Gans-F. Pereira leg., 1 specimen (
Bolivia, Brazil and Paraguay (Fig.
Coeliaria erythrogaster, first described in Exoplectra, was characterized by presenting a fovea in the hypomera, differentiating it from all other species of Exoplectra. Since then it was considered the only species of Coeliaria. In addition to this character, C. erythrogaster has strongly expanded elytra, pubescence very dense and uniform, and is larger than the other species of the genus.
Exoplectra
bernardinensis
Brèthes, 1925: 8 (original description);
Male. Length 3.08–4.00 mm, width 2.58–3.83 mm. Body rounded, with fine pubescence, thick, whitish, with thin, sparse punctuation; integument black with blue or green metallic reflections (Figs
Similar to male. Coxites elongated, longer than wide, sub-triangular with long bristles (Fig.
According to
Brazil. Alagoas: Maceió, VI. 1993, Lima, I.M.M., 1 female (
Brazil and Paraguay (Fig.
Coeliaria bernardinensis was first described as Exoplectra bernardinensis, but is herein transferred to Coeliaria based on the presence of a deep fovea in the hypomera, which characterizes Coeliaria. It differs from the other species of Coeliaria by its small size and pattern of genitalia.
Exoplectra
luteicornis
Mulsant, 1850: 919 (original description);
Male. Length 5.50–6.25 mm, width 4.42–5.25 mm. Body ovate, with fine, short, thick, whitish or yellowish pubescence; with thin, sparse punctuation; integument black with blue metallic reflections (Figs
Similar to male. Coxites sub-triangular, with long bristles; spermatheca C-shaped with highly developed ramus (Fig.
It was not possible to study the type material, which, according to
Brazil. São Paulo: Mairiporã, 4–13. I. 1967, C. Costa col., 1 specimen (
Brazil (Fig.
Coeliaria luteicornis shows a deep fovea in the hypomera, characteristic of Coeliaria; additionally, it has an oval body with whitish or yellowish pubescence. The male genitalia is similar to that of C. erythrogaster, but the female differs in the shape of the spermatheca. The most distinctive characteristic of this species is its oval body.
Holotype female. Length 5.58 mm, width 5.25 mm. Body rounded, integument light brown, white pubescence (Fig.
Unknown.
The holotype female is labeled as follows: Brazil, Santa Catarina “Nova Teutônia/SC, Brasil/XI. 1966/F. Plaumann col.”, “♀”, “HOLOTIPO/Coeliaria castanea” Churata-Salcedo & Almeida [red label], 1 specimen “
The species epithet, castanea, is a reference to the color pattern of this species.
Brazil (Santa Catarina) (Fig.
Coeliaria castanea sp. nov. resembles C. erythrogaster by having very conspicuous, deep and rounded fovea, but differs in the brownish color and by the shape of the female genitalia.
We thank Coordenação de Aperfeiçoamento de Pessoal de Nível Superior for the Master’s fellowship to JMCS (CAPES 1347909/2014), Conselho Nacional de Desenvolvimento Científico e Tecnológico for the research fellowship to LMA (CNPq 309764/2013-0), the Centro de Microscopia Eletrônica (UFPR) and Roy Funch who helped with the English of the previous version of this manuscript.