Three new species of <i>Pseudosympycnus</i> (Diptera, Dolichopodidae) from Peru and an updated key to the species

Three new species of Pseudosympycnus Robinson are described and illustrated from Peru: P. pennipes sp. nov., P. latitarsus sp. nov. and P. rafaeli sp. nov. In addition, Pseudosympycnus latipes (Parent) is recorded for the first time from the country and the male terminalia are illustrated. The first photographs of the holotype of P. bicolor Robinson and an updated key to species of the genus are provided.

Keywords:
Long-legged flies; Neotropical Region; Rare taxa; Stolidosomatinae

Authorship

Matheus Mickael Mota Soares ^**Corresponding author E-mail: matheusmmsoares@gmail.com (M.M.M. Soares)

Instituto Nacional de Pesquisas da Amazônia (INPA), Programa de Pós-Graduação em Entomologia (PPG-Ent), Manaus, AM, Brasil.Instituto Nacional de Pesquisas da Amazônia (INPA)BrasilManaus, AM, BrasilInstituto Nacional de Pesquisas da Amazônia (INPA), Programa de Pós-Graduação em Entomologia (PPG-Ent), Manaus, AM, Brasil.

https://orcid.org/0000-0002-2355-1441

Rosaly Ale-Rocha

Instituto Nacional de Pesquisas da Amazônia - (INPA), Coordenação de Biodiversidade, Manaus, AM, Brasil.Instituto Nacional de Pesquisas da Amazônia - (INPA)BrasilManaus, AM, BrasilInstituto Nacional de Pesquisas da Amazônia - (INPA), Coordenação de Biodiversidade, Manaus, AM, Brasil.

https://orcid.org/0000-0001-9874-9770

*Corresponding author E-mail: matheusmmsoares@gmail.com (M.M.M. Soares)

Associate Editor: Fabio Quinteiro

Author contribution statement

Both authors contributed to the writing, revision and editing of the manuscript.

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (7)

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Figure 2
Pseudosympycnus Robinson. Head in anterior and lateral views respectively. A-B. P. pennipes sp. nov., holotype ♂. A. Head, anterior view. B. Head, lateral view; C-D. P. latitarsus sp. nov., holotype ♂. C. Head, anterior view. D. Head, lateral view; E-F. P. rafaeli sp. nov., holotype ♂ E. Head, anterior view. F. Head, lateral view. Scale bars = 0.2 mm.

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Figure 3
Pseudosympycnus Robinson. Male tarsus I and III respectively. A-B. P. pennipes sp. nov., holotype ♂. A. Tarsus I. B. Tarsus III; C-D. P. latitarsus sp. nov., holotype ♂. C. Tarsus I. D. Tarsus III, short dorsal projection on IIIt₃ highlighted; E-F. P. rafaeli sp. nov., holotype ♂. E. Tarsus I. F. Tarsus III. Scale bars = 0.2 mm. Abbreviations: It_1-5 = fore tarsomeres 1 to 5; IIIt_1-5: hind tarsomeres 1 to 5

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Figure 1
Pseudosympycnus Robinson. Habitus lateral. A. P. bicolor Robinson, holotype ♂; B. P. latitarsus sp. nov., holotype ♂ (pre-dissection); C. P. pennipes sp. nov., holotype ♂; D. P. rafaeli sp. nov., holotype ♂. Scale bars = 2 mm.

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Figure 4
Pseudosympycnus Robinson. Male femur III, anterior view. A. P. bicolor Robinson, holotype ♂; B. P. pennipes sp. nov., holotype ♂; C. P. latitarsus sp. nov., holotype ♂; D. P. rafaeli sp. nov., holotype ♂. Scale bars = 0.5 mm.

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Figure 6
Pseudosympycnus latipes (Parent), identified specimen from Peru. Hypopygium, left lateral view. Scale bars = 0.1 mm.

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Figure 5
Pseudosympycnus Robinson. Hypopygia, left lateral view. A-B. P. pennipes sp. nov., paratype ♂; C-D. P. latitarsus sp. nov., holotype ♂; E-F. P. rafaeli sp. nov., paratype ♂. Scale bars = 0.1 mm. Abbreviations: bac scl = bacilliform sclerite; cerc = cercus; d sur = dorsal lobe of surstylus; ej apod = ejaculatory apodeme; epand lb = epandrial lobe; hypd = hypandrium; pgt = postgonite; sbepand scl = subepandrial sclerite; v sur = ventral lobe of surstylus.

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Figure 7
Type-locality of Pseudosympycnus pennipes sp. nov. and Pseudosympycnus latitarsus sp. nov. (Peru, Cusco, Quincemil). Photograph provided by DM Takiya.

Figure 2 Pseudosympycnus Robinson. Head in anterior and lateral views respectively. A-B. P. pennipes sp. nov., holotype ♂. A. Head, anterior view. B. Head, lateral view; C-D. P. latitarsus sp. nov., holotype ♂. C. Head, anterior view. D. Head, lateral view; E-F. P. rafaeli sp. nov., holotype ♂ E. Head, anterior view. F. Head, lateral view. Scale bars = 0.2 mm.

Figure 3 Pseudosympycnus Robinson. Male tarsus I and III respectively. A-B. P. pennipes sp. nov., holotype ♂. A. Tarsus I. B. Tarsus III; C-D. P. latitarsus sp. nov., holotype ♂. C. Tarsus I. D. Tarsus III, short dorsal projection on IIIt₃ highlighted; E-F. P. rafaeli sp. nov., holotype ♂. E. Tarsus I. F. Tarsus III. Scale bars = 0.2 mm. Abbreviations: It_1-5 = fore tarsomeres 1 to 5; IIIt_1-5: hind tarsomeres 1 to 5

Figure 1 Pseudosympycnus Robinson. Habitus lateral. A. P. bicolor Robinson, holotype ♂; B. P. latitarsus sp. nov., holotype ♂ (pre-dissection); C. P. pennipes sp. nov., holotype ♂; D. P. rafaeli sp. nov., holotype ♂. Scale bars = 2 mm.

Figure 4 Pseudosympycnus Robinson. Male femur III, anterior view. A. P. bicolor Robinson, holotype ♂; B. P. pennipes sp. nov., holotype ♂; C. P. latitarsus sp. nov., holotype ♂; D. P. rafaeli sp. nov., holotype ♂. Scale bars = 0.5 mm.

Figure 6 Pseudosympycnus latipes (Parent), identified specimen from Peru. Hypopygium, left lateral view. Scale bars = 0.1 mm.

Figure 5 Pseudosympycnus Robinson. Hypopygia, left lateral view. A-B. P. pennipes sp. nov., paratype ♂; C-D. P. latitarsus sp. nov., holotype ♂; E-F. P. rafaeli sp. nov., paratype ♂. Scale bars = 0.1 mm. Abbreviations: bac scl = bacilliform sclerite; cerc = cercus; d sur = dorsal lobe of surstylus; ej apod = ejaculatory apodeme; epand lb = epandrial lobe; hypd = hypandrium; pgt = postgonite; sbepand scl = subepandrial sclerite; v sur = ventral lobe of surstylus.

Figure 7 Type-locality of Pseudosympycnus pennipes sp. nov. and Pseudosympycnus latitarsus sp. nov. (Peru, Cusco, Quincemil). Photograph provided by DM Takiya.

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Three new species of <i>Pseudosympycnus</i> (Diptera, Dolichopodidae) from Peru and an updated key to the species

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[1] *Corresponding author E-mail: matheusmmsoares@gmail.com (M.M.M. Soares)