Ageniella ruschi, Rapoza & Waichert, 2022

Rapoza, Márcia & Waichert, Cecilia, 2022, Two new species of Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil and updated keys, European Journal of Taxonomy 787, pp. 71-85 : 77-80

Ageniella ruschi sp. nov.

urn:lsid:zoobank.org:act:A54C1BAA-2AAC-44D6-BD29-A37DB75D6303

Fig. 3

Diagnosis

Ageniella ruschi sp. nov. is unique among the species of Ageniella by having golden scale-like setae basally and above the clypeus and the wings darkened with the apex white; the integument is dark castaneous ( Fig. 3 ); and the clypeus is trapezoidal with the median apical margin polished and projected. The male of this species remains unknown.

Etymology

The species was named in honor of Augusto Ruschi (1915–1986), scientist, lawyer and teacher, known as the patron of ecology in Brazil, born in Santa Teresa, the type locality.

Material examined

Holotype BRAZIL • ♀; Espírito Santo, Santa Teresa , Est. Biol. Sta. Lucia ; 19°58′16.7″ S, 40°32′06.9″ W; alt. 840 m; 6–9 Apr. 2001; C.O. Azevedo and Col. team leg.; Armadilha Malaise-bosque, pto 2; MZUSP.

Paratypes BRAZIL • 1 ♀; Espírito Santo, Santa Teresa , Est. Biol. Sta. Lucia ; 19°58′37.3″ S, 40°32′22.5″ W; alt. 867 m; 6–9 Apr. 2001; C.O. Azevedo and Col. team leg.; Armadilha Malaise-bosque, pto 1; MZUSP • 2 ♀♀; Espírito Santo, Santa Teresa , Est. Biol. Sta. Lucia ; “ 11°22′43.4″ S, 37°25′0.8″ W ” [19°58′37.3″ S, 40°32′22.5″ W]; alt. 750 m; 9–12 Apr. 2001; C.O. Azevedo and Col. team leg.; Armadilha Moericketrilha, pto 9; MZUSP • 1 ♀; Espírito Santo, Domingos Martins, Alto Biriricas ; [20°17'30.62" S, 40°35'57.73" W]; 8–22 Mar. 2019; B. Pissinati leg.; Malaise 3; UFES .

Description

Female (holotype)

MEASUREMENTS. Body length 10.5 mm. Forewing length 8.6 mm; maximum wing width 2.5 mm.

COLORATION ( Fig. 3A ). Head dark castaneous; antenna, clypeus and mandibles dark castaneous, clypeus with scale-like golden pubescence; mesosoma and metasoma dark castaneous; wings darkened, apex whitish; veins castaneous; legs dark castaneous.

HEAD ( Fig. 3B ). Wide; TFD 1.18 × DF; MID 0.55 × DF; punctation inconspicuous. Pubescence short; pronotum, mesonotum, scutellum, metanotum, and anterior margin and slope of propodeum with scale-

like pubescence. Ocelli in equilateral triangle; POL 0.9× OOL. Mandible narrow. Frons with declivity between antennal torulus and ocelli, covered with scale-like golden setae. Clypeus trapezoidal, anterior margin slightly constricted laterally, median apical margin projected, rounded, polished; LC 0.29 × WC. Antenna elongate; fourth segment length 4.4 × its width; ratio of first four antennal segments 9: 3: 10: 9; WA3 0.22 × LA3; LA3 0.9× UID.

MESOSOMA ( Figs. 3A ). Punctation inconspicuous; pubescence scarce, thin. Propodeum with long, scarce erect setae. Pronotum elongated, width 6.3 × length; pronotal collar short. Propodeum with scarce setae and inconspicuous punctures; propodeum with slope, strongly arched. Forewing long, maximum width 0.3× length; 2R1 2.5× distance from its end to wing apex; 3Rs 1.5× longer than 2Rs; 2Rs 2.0 × as wide as distance from its end to wing apex; 3Rs somewhat triangular; second recurrent vein curved, meeting 2Rs 1.7× distance from its end to wing apex. Fore and mid tibiae with spines large, thick, scale-like; hind tibia with spines large, thick, continuous, scale-like arranged in row.

METASOMA. Polished; pygidium covered with short, erect pubescence; metasoma 1.16 × as long as mesosoma.

Distribution

Brazil (Espírito Santo).

Remarks

Ageniella ruschi sp. nov. is easily distinguished from other species of Ageniella distributed in Brazil by having the wing darkened with a whitish band on its apical fifth. Besides this unique wing pattern, the species has scale-like golden setae on the face and a frontal sulcus, only seen in few species of the genus.

Figures

Fig. 3. Ageniella ruschi sp. nov., ♀, holotype (UFES). A. Profile. B. Head, frontal view. C. Fore wing.