Review of the New World genus <i>Cholomyia</i> (Diptera, Tachinidae), with a new species from Costa Rica

The tachinid genus Cholomyia presents Neotropical and Nearctic distribution with three species: C. acromion (Wiedemann, 1824), C. filipes (Walker, 1857), and C. inaequipes Bigot, 1884. In the present paper, all species are reviewed and redescribed, and a new species from Costa Rica is described, C. zumbadoi sp. nov. An identification key based on males is provided. For the first time, the male terminalia of all species, and the female terminalia and first instar larva of C. inaequipes are described and illustrated. Finally, based on the detailed morphological study we discuss the systematic placement of Cholomyia into Myiophasiini-Tachininae. A list of host–parasite records is synthesized.

Keywords:
Larva; Myiophasiini; Redescription; Tachininae; Taxonomy

Authorship

Marcelo Domingos de Santis ^** Corresponding author. E-mail:mrclsantis@gmail.com (M.D. Santis).

Universidade de São Paulo, Instituto de Biociências, Departamento de Zoologia, São Paulo, SP, BrazilUniversidade de São PauloBrazilSão Paulo, SP, BrazilUniversidade de São Paulo, Instituto de Biociências, Departamento de Zoologia, São Paulo, SP, Brazil

Silvio Shigueo Nihei

* Corresponding author. E-mail:mrclsantis@gmail.com (M.D. Santis).

Conflicts of interest

The authors declare no conflicts of interest.

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (7)

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Fig. 1
Distributional map of Cholomyia species.

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Figs. 2–9
Cholomyia acromion (Wiedemann), ♂: 2, dorsal habitus; 3, lateral habitus; 4, head, lateral view; 5, head, frontal view. 6–9, ♂ terminalia: 6, ejaculatory apodeme, lateral view; 7, aedeagus and hypandrium, lateral view; 8, epandrium, surstylus and cerci, lateral view; 9, epandrium, surstylus and cerci, posterior view. (Legends: basiph, basiphallus; cer, cerci; distph, distiphallus; ejac apod, ejaculatory apodeme; ep, epandrium; hypd, hypandrium; phapod, phallapodeme; pregt, pregonite; posgt, postgonite; sur, surstylus). Scale bar from figures 2 to 5: 1 mm; figures 6 to 9: 0.1 mm.

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Figs. 10–13
Cholomyia acromion (Wiedemann), ♀: 10, dorsal habitus; 11, lateral habitus; 12, head, lateral view; 13, head, frontal view. Scale bar: 1 mm.

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Figs. 14–21
Cholomyia filipes (Walker), ♂: 14, dorsal habitus; 15, lateral habitus; 16 head, lateral view; 17 head, frontal view. 18–21, ♂ terminalia: 18, ejaculatory apodeme, lateral view; 19, aedeagus and hypandrium, lateral view; 20, epandrium, surstylus and cerci, lateral view; 21, epandrium, surstylus and cerci, posterior view. Scale bar from figures 14 to 17: 1 mm; figures 18 to 21: 0.1 mm.

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Figs. 22–29
Cholomyia inaequipes Bigot, ♂: 22, dorsal habitus; 23, lateral habitus; 24 head, lateral view; 25 head, frontal view. 26–29, ♂ terminalia: 26, ejaculatory apodeme, lateral view; 27, aedeagus and hypandrium, lateral view; 28, epandrium, surstylus and cerci, lateral view; 29, epandrium, surstylus and cerci, posterior view. Scale bar from figures 22 to 25: 1 mm; figures 26 to 29: 0.1 mm.

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Figs. 30–36
Cholomyia inaequipes Bigot, ♀: 30, dorsal habitus; 31, lateral habitus; 32 head, lateral view; 33 head, frontal view. 34, ♀ terminalia; 35, larvae, and 36, cephaloskeleton. Scale bar from figures 30 to 33: 1 mm; figures 34 to 35: 0.1 mm; figure 36: 0.05 mm.

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Figs. 37–44
Cholomyia zumbadoi sp. nov., ♂: 37, dorsal habitus; 38, lateral habitus; 39 head, lateral view; 40 head, frontal view. 41–44, ♂ terminalia: 41, ejaculatory apodeme, lateral view; 42, aedeagus and hypandrium, lateral view; 43, epandrium, surstylus and cerci, lateral view; 44, epandrium, surstylus and cerci, posterior view. Scale bar from figures 37 to 40: 1 mm; figures 41 to 44: 0.1 mm.

Fig. 1 Distributional map of Cholomyia species.

Figs. 2–9 Cholomyia acromion (Wiedemann), ♂: 2, dorsal habitus; 3, lateral habitus; 4, head, lateral view; 5, head, frontal view. 6–9, ♂ terminalia: 6, ejaculatory apodeme, lateral view; 7, aedeagus and hypandrium, lateral view; 8, epandrium, surstylus and cerci, lateral view; 9, epandrium, surstylus and cerci, posterior view. (Legends: basiph, basiphallus; cer, cerci; distph, distiphallus; ejac apod, ejaculatory apodeme; ep, epandrium; hypd, hypandrium; phapod, phallapodeme; pregt, pregonite; posgt, postgonite; sur, surstylus). Scale bar from figures 2 to 5: 1 mm; figures 6 to 9: 0.1 mm.

Figs. 10–13 Cholomyia acromion (Wiedemann), ♀: 10, dorsal habitus; 11, lateral habitus; 12, head, lateral view; 13, head, frontal view. Scale bar: 1 mm.

Figs. 14–21 Cholomyia filipes (Walker), ♂: 14, dorsal habitus; 15, lateral habitus; 16 head, lateral view; 17 head, frontal view. 18–21, ♂ terminalia: 18, ejaculatory apodeme, lateral view; 19, aedeagus and hypandrium, lateral view; 20, epandrium, surstylus and cerci, lateral view; 21, epandrium, surstylus and cerci, posterior view. Scale bar from figures 14 to 17: 1 mm; figures 18 to 21: 0.1 mm.

Figs. 22–29 Cholomyia inaequipes Bigot, ♂: 22, dorsal habitus; 23, lateral habitus; 24 head, lateral view; 25 head, frontal view. 26–29, ♂ terminalia: 26, ejaculatory apodeme, lateral view; 27, aedeagus and hypandrium, lateral view; 28, epandrium, surstylus and cerci, lateral view; 29, epandrium, surstylus and cerci, posterior view. Scale bar from figures 22 to 25: 1 mm; figures 26 to 29: 0.1 mm.

Figs. 30–36 Cholomyia inaequipes Bigot, ♀: 30, dorsal habitus; 31, lateral habitus; 32 head, lateral view; 33 head, frontal view. 34, ♀ terminalia; 35, larvae, and 36, cephaloskeleton. Scale bar from figures 30 to 33: 1 mm; figures 34 to 35: 0.1 mm; figure 36: 0.05 mm.

Figs. 37–44 Cholomyia zumbadoi sp. nov., ♂: 37, dorsal habitus; 38, lateral habitus; 39 head, lateral view; 40 head, frontal view. 41–44, ♂ terminalia: 41, ejaculatory apodeme, lateral view; 42, aedeagus and hypandrium, lateral view; 43, epandrium, surstylus and cerci, lateral view; 44, epandrium, surstylus and cerci, posterior view. Scale bar from figures 37 to 40: 1 mm; figures 41 to 44: 0.1 mm.

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Review of the New World genus <i>Cholomyia</i> (Diptera, Tachinidae), with a new species from Costa Rica

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[1] * Corresponding author. E-mail:mrclsantis@gmail.com (M.D. Santis).