Pseudosympycnus palpiger (Van Duzee)

Soares, Matheus M. M. & Capellari, Renato S., 2020, Review of the Neotropical genus Pseudosympycnus (Diptera: Dolichopodidae) with description of six new species from Brazil and Peru, Zootaxa 4881 (2), pp. 231-256: 245

publication ID

https://doi.org/10.11646/zootaxa.4881.2.2

publication LSID

lsid:zoobank.org:pub:F6E84334-C578-4AF1-AF62-5E31DDA7DF8E

DOI

http://doi.org/10.5281/zenodo.4332262

persistent identifier

http://treatment.plazi.org/id/F0238789-C806-FFF0-FF7C-6B84028D5089

treatment provided by

Plazi

scientific name

Pseudosympycnus palpiger (Van Duzee)
status

 

Pseudosympycnus palpiger (Van Duzee)  

( Figs 7 View FIGURES 7–11 , 14 View FIGURES 12–15 , 30–32 View FIGURES 30–39 , 55–57 View FIGURES 55–65 , 86 View FIGURE 86 )

Sympycnus palpiger Van Duzee, 1931: 177   , figs 14–15. Type locality: Barro Colorado Island, Panama.

Diagnosis (male). Metepimeron yellow ( Fig. 7 View FIGURES 7–11 ). Femora entirely yellow ( Fig. 7 View FIGURES 7–11 ). Tibia I not compressed. Tarsus I ( Figs 55, 56 View FIGURES 55–65 ) brown, but anterior surface of It 4–5 (sometimes also It 3) covered by whitish pubescence: It 2 with 4 long ventral setae and 2 bristles at apex. It 4–5 laterally flattened (sometimes also It 3). Tarsus II unmodified. Tarsus III ( Fig. 57 View FIGURES 55–65 ): IIIt 3–4 with row of setae decreasing in size towards apex.

Type material. PARATYPE Ƌ, labelled: “ Barro Colo [Colorado] Isld. [ Island] / Canal Zone / 4.i.1929 ” “Col-lector / C. H. Curran ” “MCVanDuzee / Collection” “ Sympycnus   / palpiger   / Paratype Van Duzee” ( CAS). PARA-TYPE ♀   : same data ( CAS)   .

Additional material examined. BRAZIL. Acre, Mâncio Lima, Parque Nacional Serra do Divisor, Malaise , 5.vi.2007, L. Menezes leg. (3 Ƌ, 1 ♀)   ; same data except, 5.viii.2007 (3 Ƌ, 5 ♀)   ; same data except, 5.ix.2007 (4 Ƌ, 2 ♀)   ; same data except, 5.x.2007 (3 Ƌ, 1 ♀ all MZUSP)   ; same data except, Igarapé do Amor, Malaise , 04.iii– 04.iv.2007, Calor, A. R   . & D. Viana (2 Ƌ, INPA, 1 Ƌ MZUSP)   . Amazonas, Manaus , Res. Km 41, PDBFF   , Trilha CI-SB, 07–08.vii.2004, R   . Querino col. (1 Ƌ INPA, 1 Ƌ, MZUSP).

Remarks. Couplet 2 in Robinson’s (1967) key states that the male hind tarsus of P. palpiger   is devoid of series of erect setae, which is indeed inferred by Van Duzee’s (1931) figure 15. Nevertheless, Van Duzee’s original description states: “ third and fourth [tarsomeres of hind tarsus] long, bearing a row of curved hairs, which are rather long ” (p. 177). Examination of the male paratype (CAS) enabled us to confirm the presence of such setae on the hind tarsus of this species ( Fig. 57 View FIGURES 55–65 ).

We found specimens of Pseudosympycnus   from Acre ( Brazil) with It 3–5 flattened and covered by dense whitish pubescence ( Fig. 56 View FIGURES 55–65 ) in sympatry with specimens of P. palpiger   . Otherwise those specimens fit very well in P. palpiger   , including hypopygial morphology. We concluded this is part of intraspecific variation of the species, so that we refrained to describe them as new. Nevertheless more specimens from different localities are needed to confirm it as populational variation.

Distribution. Panama, Brazil (States of Acre and Amazonas) ( Fig. 86 View FIGURE 86 ).

CAS

California Academy of Sciences

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

R

Departamento de Geologia, Universidad de Chile

INPA

Instituto Nacional de Pesquisas da Amazonia

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Dolichopodidae

Genus

Pseudosympycnus

Loc

Pseudosympycnus palpiger (Van Duzee)

Soares, Matheus M. M. & Capellari, Renato S. 2020
2020
Loc

Sympycnus palpiger

Van Duzee, M. C. 1931: 177
1931