Adelius sancticaroli Bortoni, Penteado-Dias & Shimbori, 2019

Shimbori, Eduardo M., Bortoni, Marco A., Shaw, Scott R., Souza-Gessner, Carolina Da S., Cerântola, Paula De C. M. & Penteado-Dias, Angélica M., 2019, Revision of the New World genera Adelius Haliday and Paradelius de Saeger (Hymenoptera: Braconidae: Cheloninae: Adeliini), Zootaxa 4571 (2), pp. 151-200 : 188-190

Adelius sancticaroli Bortoni, Penteado-Dias & Shimbori sp. n.

( Figs 105–113 )

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Type material. Holotype ♀ ( DCBU 31307 ): “São Carlos, SP, Brasil, Faz. Canchim, Cerrado , Varredura, 15.X.1987, L.A Joaquim col,”. Paratypes: one ♂ ( DCBU 33391 ), same data as holotype; one ♂ ( DCBU 33392 ) “São Carlos, SP, Brasil, UFSCar, Armadilha luminosa, 02.IV.1993, L.A. Joaquim col.”; one ♀ ( DCBU 31308 ) “São Carlos, SP, Brasil, UFSCar, Armadilha luminosa, 06.III.1988, L.A. Joaquim col.”; one ♀ ( DCBU 31305 ) “Crato, CE, Brasil, Chapada do Araripe, Armadilha luminosa, 03–10.II.2011, Silva-Neto, A.M. e Araújo, M.X. col.”

Description of holotype, ♀. Body length: 2.1 mm; fore wing length: 1.7 mm.

Color. Brownish yellow. Head with stemmaticum and mandibles apically black, flagellomeres 5–15 dark brown, palpi whitish yellow. Wings hyaline with two fuscous bands, stigma and venation brown. Legs with fore mid and hind coxae, hind tibial spurs and hind tarsi 2–5 light yellow, apex of fore tarsus and apex of hind femur, dorsal hind tibia dark brown. Base of metasoma yellow, T2+3 whitish yellow, remainder terga brown.

Head. Length of head in dorsal view 0.5× width. Antenna with apical segments missing, scape 2.6× longer than wide; flagellomeres 5–15 with a distinct expansion apico-ventrally. Eye height 4.25 longer than malar space. Mostly areolate-rugulose, with a longitudinal carina from between antennal sockets to middle of face. Malar suture present.

Mesosoma. Mesonotum coriaceous. Notauli absent. Pronotum smooth, with rugose groove. Propleuron smooth. Scutellar sulcus with 12 divisions. Scutellum punctate. Metanotum and mesoscutellar trough costate. Mesopleuron smooth with weakly rugose-costate sternaulus. Metapleuron mostly coriaceous, costate posteriorly. Propodeum with complete areola extending over its entire length; anterior aspect weakly rugose and with additional pair of lateral carinae; posterior aspect smooth and polished; transverse carina high and complete, bisecting areola medially.

Wings. Fore wing vein r extremely short, 0.1× stigma height; vein R1 long, nearly as long as stigma; stigma 2.6× longer than wide.

Legs. Hind tibial spurs about 0.24× the hind tibia length; hind tibia 5.0× longer than its maximum width. All legs smooth.

Metasoma. All terga smooth; T1 mid-basally with a pair of short dorsal carinae.

Variation. Body length from 2.0– 2.2 mm. Fore wing length 1.2–1.7 mm. Eye height varying from 2.6 to 2.8× the malar space. Body color from yellow to brownish yellow.

Male. Body length 1.8–1.9 mm; fore wing length 1.6–1.7 mm. Essentially as female but flagellomeres without distinct expansion apical-ventrally. Fuscous bands on wings are less pigmented than in females.

Diagnosis. In this new species the fore wing veins 2RS and 3RS connect very close to stigma, therefore forming a very short vein r (a similar state occurs only in A. gauldi sp. n.). Adelius sancticaroli sp. n. is different from A. gauldi by having a partly striate and mostly coriaceous metapleuron, and a weakly rugose propodeum (both being smooth and polished in A. gauldi ). Adelius sancticaroli also has a short mid-longitudinal carina on face, just below the torulli, which is absent in A. gauldi . The presence of the fore wing vein r is the main character separating A. sancticaroli from the otherwise very similar A. caatinga sp. n., in which vein 2RS and 3RS are clearly apart from each other, emerging directly from stigma. The fuscous bands in A. sancticaroli are more darkly defined, as compared with those in A. caatinga .

Biology. Unknown.

Distribution. Known from the Brazilian states of São Paulo and Ceará.

Etymology. This species is named after the city where the holotype was collected.

Figures

FIGURES 105–107. Adelius sancticaroli Bortoni, Penteado-Dias & Shimbori sp. n., ♀. 105, habitus, lateral (holotype); 106, apical flagellomeres (paratype); 107, propodeum and base of metasoma, dorsal (paratype)

FIGURES 108–113. Adelius sancticaroli Bortoni, Penteado-Dias & Shimbori sp. n., ♀ paratype. 108, head, frontal; 109, head, dorsal; 110, head, lateral; 111, mesonotum; 112, metapleuron; 113, propodeum and base of metasoma, dorsal. Scale bar = 200 µm