Cardiasilus dangeloi, Soares & Camargo & Lamas, 2025

Cardiasilus dangeloi sp. nov.

Figs 6 View Figure 6 , 7 View Figure 7 , 8 View Figure 8 , 19 View Figure 19

Diagnosis.

The black postalar macrosetae (Fig. 6 B View Figure 6 ), the epandrium strongly excavated at mid-inner dorsal margin (Fig. 7 A, F, H View Figure 7 ), and the subepandrial sclerite somewhat trapezoidal at middle (Fig. 8 D View Figure 8 ) should promptly distinguish this species from its congeners.

Description.

Male (Fig. 6 A View Figure 6 ). Body Length: 13.2 mm; wing length: 7.1 mm. Head (Fig. 6 A – D View Figure 6 ). Similar to C. aysu sp. nov. except as noted: Thorax (Fig. 6 A, B, D View Figure 6 ) postalar macrosetae black. Legs (Fig. 6 B View Figure 6 ). Leg I. Tibia with posterior row of four long black macrosetae from basal 1 / 4 to apex. Leg II. Femur with anterior row of four strong black macrosetae (basalmost white). Tibia with macrosetae wholly black. Leg III. Femur with anteroventral row of short, strong, and sparse black macrosetae (basalmost white). Terminalia (Figs 7 View Figure 7 , 8 View Figure 8 ). Similar to C. aysu sp. nov., except as noted: Epandrium strongly excavated at mid-inner dorsal margin (Fig. 7 A, F View Figure 7 ); subepandrial sclerite somewhat trapezoidal at its middle (Fig. 8 D View Figure 8 ).

Female. Unknown.

Type examined material.

Holotype • ♂ ( MZUSP) labelled: “ BRASIL: MS [state of Mato Grosso do Sul]: Porto Murtinho | Faz. São Fernando – km 12 | 21°36'30"S, 57°49'02"W | 19–31.I.2008 | Nihei, S., Figueiredo, R. & Almeida, J. | (col.) ” “ HOLOTYPE | Cardiasilus dangeloi | Soares, Camargo & Lamas [red label] ” GoogleMaps . Holotype condition: Good, left postpedicel broken off, abdomen glued to thorax with remains of glue obscuring pruinosity of tergites one to three, terminalia dissected and stored in microvial at the same pin.

Remarks.

The new species is remarkably similar to C. aysu sp. nov., differing only in the color of postalar macrosetae black (Fig. 6 B View Figure 6 ), anterior row of macrosetae on mid femur wholly black, only the basalmost macroseta white (Fig. 6 A View Figure 6 ), epandrium strongly excavated at mid-inner dorsal margin (Fig. 7 A, F, H View Figure 7 ) and subepandrial sclerite somewhat trapezoidal at middle (Fig. 8 D View Figure 8 ). In C. aysu sp. nov. the postalar macrosetae are yellow (Fig. 2 C View Figure 2 ), the anterior row of macrosetae on the mid femur is white, the mid-inner dorsal margin of the epandrium is weakly excavated (Fig. 3 A View Figure 3 ) and the subepandrial sclerite is somewhat diamond-shaped (Fig. 4 D View Figure 4 ). The epandrium strongly excavated medially at inner margin and the lack of a dorsal preapical process also differs C. dangeloi sp. nov. from C. ruda sp. nov.

Distribution.

Brazil (state of Mato Grosso do Sul) (Fig. 19 View Figure 19 ).

Etymology.

The new species is named after Gio D’Angelo (INPA), an artist, photographer, and myrmecologist who is the partner of the first author and deeply passionate about scientific illustration. Gio also kindly created the illustration for Fig. 20 View Figure 20 .