Pseudosympycnus bicolor Robinson, 1967

Soares, Matheus Mickael Mota & Ale-Rocha, Rosaly, 2022, Three new species of Pseudosympycnus (Diptera, Dolichopodidae) from Peru and an updated key to the species, Revista Brasileira de Entomologia (e 20220005) 66 (1), pp. 1-10 : 6

Pseudosympycnus bicolor Robinson

( Figs. 1A , 4A )

Pseudosympycnus bicolor Robinson, 1967: 902 , Figs. 10–11. Type locality: Rio Valle Nacional , Oaxaca, Mexico .

Diagnosis. As in Soares and Capellari (2020) plus the femur III brown, except basal 1/3 yellow, with few slender ventral setae at basal 1/3 and 3–4 ventral strong setae near middle ( Fig. 4A ); tibia III slightly thicker than tibiae I and II, with ventral row of short, curved setae from base to apical 4/6 ( Fig. 1A )

Distribution. Mexico (Chiapas and Oaxaca).

Remarks. Pseudosympycnus bicolor is similar to P. latitarsus sp. nov. by the IIIt 3 modified (mostly triangular and overlapping the base of IIIt 4 and with apical cluster of setae). But P. bicolor can be differentiated by the metepimeron and coxa III brown (metepimeron and coxa III yellow in P. latitarsus sp. nov.) and tibia III slightly thicker than tibiae I and II, with ventral row of short, curved setae from base to apical 4/6 (tibia III unmodified in P. latitarsus sp. nov.).

Figures

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.