Revision of <i>Coptochilus</i> (Heteroptera, Scutelleridae, Pachycorinae)

Coptochilus Amyot & Serville, 1843 is distinguishable from the other Neotropical Scutelleridae by the dorsally concave head, with lateral margins of mandibular plates elevated. Here we describe and revise the species of Coptochilus based on general and genital morphological traits. Coptochilus castaneus (Dallas, 1851), once synonymous with C. ferrugineus Amyot & Serville, 1843, is revalidated, and a new species, C. morrisi, is described from French Guiana. A key to the five species in the genus is provided.

KEYWORDS.
Neotropics; new species; shield bug; revalidation; taxonomy

Authorship

Luís Ricardo Schmitz

Museu de Ciências Naturais, Secretaria do Meio Ambiente e Infraestrutura, Rua Dr. Salvador França, 1427, 90690-000 Porto Alegre, RS, Brazil. (ricardoschmitz96@gmail.com; alinebar.fzb@gmail.com)Secretaria do Meio Ambiente e InfraestruturaBrazilPorto Alegre, RS, Brazil Museu de Ciências Naturais, Secretaria do Meio Ambiente e Infraestrutura, Rua Dr. Salvador França, 1427, 90690-000 Porto Alegre, RS, Brazil. (ricardoschmitz96@gmail.com; alinebar.fzb@gmail.com)

http://orcid.org/0000-0003-0652-4844

Aline Barcellos

http://orcid.org/0000-0002-0603-926X

Joseph Eger

Florida State Collection of Arthropods, 2606 South Dundee Street, Tampa, FL, 33629, USA.(jeeger811@gmail.com)Florida State Collection of ArthropodsUSATampa, FL, USA Florida State Collection of Arthropods, 2606 South Dundee Street, Tampa, FL, 33629, USA.(jeeger811@gmail.com)

http://orcid.org/0000-0003-0223-4495

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (12)

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Figs 1-9.
Coptochilus, habitus, respectively in dorsal, ventral, and lateral view: 1-3, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 4-6, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 7-9, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.. Scale bars: 1.0 mm.

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Figs 10-15.
Coptochilus, habitus, respectively in dorsal, ventral, and lateral view: 10-12, C. morrisi sp. nov.; 13-15, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. Scale bars: 1.0 mm.

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Figs 16-30.
Coptochilus, head, respectively in dorsal, lateral, and dorsolateral view: 16-18, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 19-21, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 22-24, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 25-27, C. morrisi sp. nov.; 28-30, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. Scale bars: 1.0 mm.

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Figs 31-45.
Coptochilus, pygophore, respectively in ventral, dorsal, and posterior view: 31-33, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 34-36, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 37-39, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 40-42, C. morrisi sp. nov.; 43-45, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52. (pr, parameres). Scale bars: 0.5 mm.

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Figs 46-50.
Coptochilus, right parameres, dorsal and ventral view: 46, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 47, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 48, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 49, C. morrisi sp. nov.; 50, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. Scale bars: 0.1 mm.

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Figs 51-53.
C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p., pygophore with phallus expanded, respectively in ventral, dorsal, and lateral view (aed, aedeagus; cpI, conjunctival process I; cpII, conjunctival process II; cpIII, conjunctival process III). Scale: 1.0 mm.

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Figs 54-62.
Coptochilus, phallus, respectively in ventral, dorsal, and lateral view: 54-56, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 57-59, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 60-62, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p. (aed, aedeagus; bp, basal plate; cpI, conjunctival process I; cpII, conjunctival process II; cpIII, conjunctival process III). Scale bars: 0.5 mm.

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Figs 63-68.
Coptochilus, phallus, respectively in ventral, dorsal and lateral view: 63-65, C. morrisi sp. nov.; 66-68, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. (aed, aedeagus; bp, basal plate; cpI, conjunctival process I; cpII, conjunctival process II; cpIII, conjunctival process III). Scale bars: 0.5 mm.

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Figs 69-73.
Coptochilus, genital plates: 69, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 70, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 71, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 72, C. morrisi sp. nov.; 73, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52. (lt8, laterotergites VIII; lt9, laterotergites IX; vf8, valvifers VIII; vf9, valvifer IX). Scale bars: 0.5 mm.

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Figs 74-75.
Coptochilus ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p., gynatrium: 74, dorsal view; 75,ventral view (fec, fecundatory canal; lt8, laterotergites VIII; lt9, laterotergites IX; pmgp, posteromedial genital pouch; sth, spermatheca; va9, valvulae IX; vf8, valvifers VIII; vf9, valvifer IX; X, proctiger). Scale bars: 1.0 mm.

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Figs 76-79.
Coptochilus, schematic illustrations of genitalia: 76, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p., pygophore in lateral view; 77-79 spermatheca, respectively: C. castaneus (Dalas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval., C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p. and C. lentiginosus (ar, apical receptaculum; dd, distal duct; ip, intermediate part; pr, paramere; sd, spermathecal dilation). Scale bars: 1.0 mm.

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Fig. 80.
Distribution of the species of Coptochilus, colored areas based on biogeographical dominions according to Morrone (2013Morrone, J. J. 2013. Cladistic biogeography of the Neotropical region: identifying the main events in the diversification of the terrestrial biota. Cladistics 30(2):202-214.).

Figs 1-9. Coptochilus, habitus, respectively in dorsal, ventral, and lateral view: 1-3, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 4-6, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 7-9, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.. Scale bars: 1.0 mm.

Figs 10-15. Coptochilus, habitus, respectively in dorsal, ventral, and lateral view: 10-12, C. morrisi sp. nov.; 13-15, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. Scale bars: 1.0 mm.

Figs 16-30. Coptochilus, head, respectively in dorsal, lateral, and dorsolateral view: 16-18, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 19-21, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 22-24, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 25-27, C. morrisi sp. nov.; 28-30, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. Scale bars: 1.0 mm.

Figs 31-45. Coptochilus, pygophore, respectively in ventral, dorsal, and posterior view: 31-33, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 34-36, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 37-39, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 40-42, C. morrisi sp. nov.; 43-45, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52. (pr, parameres). Scale bars: 0.5 mm.

Figs 46-50. Coptochilus, right parameres, dorsal and ventral view: 46, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 47, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 48, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 49, C. morrisi sp. nov.; 50, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. Scale bars: 0.1 mm.

Figs 51-53. C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p., pygophore with phallus expanded, respectively in ventral, dorsal, and lateral view (aed, aedeagus; cpI, conjunctival process I; cpII, conjunctival process II; cpIII, conjunctival process III). Scale: 1.0 mm.

Figs 54-62. Coptochilus, phallus, respectively in ventral, dorsal, and lateral view: 54-56, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 57-59, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 60-62, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p. (aed, aedeagus; bp, basal plate; cpI, conjunctival process I; cpII, conjunctival process II; cpIII, conjunctival process III). Scale bars: 0.5 mm.

Figs 63-68. Coptochilus, phallus, respectively in ventral, dorsal and lateral view: 63-65, C. morrisi sp. nov.; 66-68, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52.. (aed, aedeagus; bp, basal plate; cpI, conjunctival process I; cpII, conjunctival process II; cpIII, conjunctival process III). Scale bars: 0.5 mm.

Figs 69-73. Coptochilus, genital plates: 69, C. castaneus (Dallas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval.; 70, C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p.; 71, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p.; 72, C. morrisi sp. nov.; 73, C. neotropicalisDistant, 1899Distant, W. L. 1899.Rhynchotal notes-Heteroptera: Scutellerinae and Graphosominae. Annals of the Magazine of Natural History 4(7):29-52. (lt8, laterotergites VIII; lt9, laterotergites IX; vf8, valvifers VIII; vf9, valvifer IX). Scale bars: 0.5 mm.

Figs 74-75. Coptochilus ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p., gynatrium: 74, dorsal view; 75,ventral view (fec, fecundatory canal; lt8, laterotergites VIII; lt9, laterotergites IX; pmgp, posteromedial genital pouch; sth, spermatheca; va9, valvulae IX; vf8, valvifers VIII; vf9, valvifer IX; X, proctiger). Scale bars: 1.0 mm.

Figs 76-79. Coptochilus, schematic illustrations of genitalia: 76, C. lentiginosusBerg, 1879Berg, C. 1879. Hemiptera argentina enumeravit speciesque novas descripsit. Buenos Aires, Pauli E. Coni. 204p., pygophore in lateral view; 77-79 spermatheca, respectively: C. castaneus (Dalas, 1851Dallas, W. S. 1851. List of the specimens of hemipterous insects in the collection of the British Museum. London, British Museum. Part 1, 368p.), reval., C. ferrugineusAmyot & Serville, 1843Amyot, C. J. B. & Serville, J. G. A. 1843. Histoire Naturelle des Insectes. Hémiptères. Paris, Librairie Encyclopédique de Roret. 676p. and C. lentiginosus (ar, apical receptaculum; dd, distal duct; ip, intermediate part; pr, paramere; sd, spermathecal dilation). Scale bars: 1.0 mm.

Fig. 80. Distribution of the species of Coptochilus, colored areas based on biogeographical dominions according to Morrone (2013Morrone, J. J. 2013. Cladistic biogeography of the Neotropical region: identifying the main events in the diversification of the terrestrial biota. Cladistics 30(2):202-214.).

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Revision of <i>Coptochilus</i> (Heteroptera, Scutelleridae, Pachycorinae)

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