Taxonomy of the Neotropical species of <i>Calythea</i> (Anthomyiidae: Diptera), with description of two new species from South America

Calythea Schnabl & Dziedzicki has 15 known species distributed worldwide, including three species in the neotropics. The species of Calythea can be easily identified by having bright silvery grey-dusting on the thorax and abdomen, forming a contrasting pattern with the dark body. Herein, we describe two new species from the Neotropical region and present new records of the genus for Argentina, Brazil, Chile, Colombia, Ecuador and Peru. We also redescribe Calythea comis (Stein). In addition, we present an identification key for the Neotropical species and drawings of the terminalia and habitus images of the new species, C. comis, C. crenata (Bigot) and C. micropteryx (Thomson).

Keywords:
Biodiversity; Identification key; Morphology; New records

Authorship

Lucas Roberto Pereira Gomes ^**Corresponding author: E-mail: lucaspergos@gmail.com (Lucas Roberto Pereira Gomes).

Universidade Federal do Paraná, Departamento de Zoologia, Laboratório de Biodiversidade e Biogeografia de Diptera, Curitiba, PR, Brasil.Universidade Federal do ParanáBrasilCuritiba, PR, BrasilUniversidade Federal do Paraná, Departamento de Zoologia, Laboratório de Biodiversidade e Biogeografia de Diptera, Curitiba, PR, Brasil.

http://orcid.org/0000-0002-4782-2015

Claudio José Barros de Carvalho

http://orcid.org/0000-0002-3533-6853

*Corresponding author: E-mail: lucaspergos@gmail.com (Lucas Roberto Pereira Gomes).

Associate Editor: Marcia Couri

Conflicts of interest

The authors declare no conflicts of interest.

Author contribution statement

CJBC and LRPG designed the study. LRPG made the images and illustrations. Both authors contributed to the writing, revised the manuscript, and approved the final version.

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (6)

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Figure 1
Calythea andinanew species Male: head, frontal view (A); habitus, dorsal view (B); habitus, lateral view (C). Bar= 0.5 mm.

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Figure 2
Calythea cochlearisnew species Male: head, frontal view (A); habitus, dorsal view (B); habitus, lateral view (C); Female: head, frontal view (D); habitus, dorsal view (E); habitus, lateral view (F). Bar= 0.5 mm.

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Figure 3
Calythea comis. Male: head, frontal view (A); habitus, dorsal view (B); Female: habitus, dorsal view (C). Calythea crenata. Male: head, frontal view (D); habitus, dorsal view (E); Female: habitus, dorsal view (F). Calythea micropteryx. Male: head, frontal view (G); habitus, dorsal view (H); Female: habitus, dorsal view (I). Bar= 0.5 mm.

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Figure 4
Calythea male terminalia: C. andina new species: sternite 5, dorsal view (A); epandrium, cerci and surstyli dorsal (B) and lateral (C) view; aedeagus and associated structures, lateral view (D). Calythea cochlearis new species: sternite 5, dorsal view (E); epandrium, cerci and surstyli dorsal (F) and lateral (G) view; aedeagus and associated structures, lateral view (H). Calythea comis: sternite 5, dorsal view (I); epandrium, cerci and surstyli dorsal (J) and lateral (K) view; aedeagus and associated structures, lateral view (L). Calythea crenata: sternite 5, dorsal view (M); epandrium, cerci and surstyli dorsal (N) and lateral (O) view; aedeagus and associated structures, lateral view (P). Calythea micropteryx: sternite 5, dorsal view (Q); epandrium, cerci and surstyli dorsal (R) and lateral (S) view; aedeagus and associated structures, lateral view (T).

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Figure 5
Ovipositor Calythea. C. cochlearis new species: lateral view (A), dorsal view (B) and ventral view (C); C. comis: lateral view (D), dorsal view (E) and ventral view (F); C. crenata: lateral view (G), dorsal view (H) and ventral view (I); C. micropteryx: lateral view (J), dorsal view (K) and ventral view (L).

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Figure 6
Map of Calythea species from Neotropical region. Circles= literature records; triangle= new records.

Figure 1 Calythea andinanew species Male: head, frontal view (A); habitus, dorsal view (B); habitus, lateral view (C). Bar= 0.5 mm.

Figure 2 Calythea cochlearisnew species Male: head, frontal view (A); habitus, dorsal view (B); habitus, lateral view (C); Female: head, frontal view (D); habitus, dorsal view (E); habitus, lateral view (F). Bar= 0.5 mm.

Figure 3 Calythea comis. Male: head, frontal view (A); habitus, dorsal view (B); Female: habitus, dorsal view (C). Calythea crenata. Male: head, frontal view (D); habitus, dorsal view (E); Female: habitus, dorsal view (F). Calythea micropteryx. Male: head, frontal view (G); habitus, dorsal view (H); Female: habitus, dorsal view (I). Bar= 0.5 mm.

Figure 4 Calythea male terminalia: C. andina new species: sternite 5, dorsal view (A); epandrium, cerci and surstyli dorsal (B) and lateral (C) view; aedeagus and associated structures, lateral view (D). Calythea cochlearis new species: sternite 5, dorsal view (E); epandrium, cerci and surstyli dorsal (F) and lateral (G) view; aedeagus and associated structures, lateral view (H). Calythea comis: sternite 5, dorsal view (I); epandrium, cerci and surstyli dorsal (J) and lateral (K) view; aedeagus and associated structures, lateral view (L). Calythea crenata: sternite 5, dorsal view (M); epandrium, cerci and surstyli dorsal (N) and lateral (O) view; aedeagus and associated structures, lateral view (P). Calythea micropteryx: sternite 5, dorsal view (Q); epandrium, cerci and surstyli dorsal (R) and lateral (S) view; aedeagus and associated structures, lateral view (T).

Figure 5 Ovipositor Calythea. C. cochlearis new species: lateral view (A), dorsal view (B) and ventral view (C); C. comis: lateral view (D), dorsal view (E) and ventral view (F); C. crenata: lateral view (G), dorsal view (H) and ventral view (I); C. micropteryx: lateral view (J), dorsal view (K) and ventral view (L).

Figure 6 Map of Calythea species from Neotropical region. Circles= literature records; triangle= new records.

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Taxonomy of the Neotropical species of <i>Calythea</i> (Anthomyiidae: Diptera), with description of two new species from South America

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[1] *Corresponding author: E-mail: lucaspergos@gmail.com (Lucas Roberto Pereira Gomes).