Baeus fluminensis Araujo & Vivallo

Araujo, Rodrigo De Oliveira, Vivallo, Felipe & Araujo, Cristina De Oliveira, 2013, Five new species of Baeus Haliday, 1833 (Hymenoptera: Platygastroidea: Scelioninae) from Brazil with an updated key to Neotropical species, Zootaxa 3670 (1) : -

Baeus fluminensis Araujo & Vivallo new species

( Figs. 1–3 and 16 )

Diagnosis. Baeus fluminensis new species is similar to B. metazygiae Loiácono & Margaría, 2004 , by the body coloration dark brown, but differs mainly by the body length and by the proportions of the head width in relation to the metasoma. Beside these character B. fluminensis has an apparently reduced metasoma relative to other species.

Description. Holotype female: Body length: 0.62 mm.

Body dark brown. A1 dark brown with distal end yellow. A2–A4 dark brown. A5 and A6 yellow. Antennal club yellow with dark brown distal end. Legs predominantly dark brown, with distal end of the femora, tarsomeres and claws lighter.

Head large, 1.20 times as wide as high (frontal view), 1.34 times as wide as mesosoma (dorsal view), 1.19 times as wide as metasoma (dorsal view) and 3.52 times as long as malar space (lateral view). Distal edge of clypeus rounded ( Fig. 16 ). Eye width 1.19 times as wide as interorbital distance. POD 36 times as long as OOD. A1 1.34 times as long as the sum of A2–A6. A2 1.96 times as long as wide. Antennal club without traces of transverse sutures marking remnants of separation lines between clavomeres, 2.5 times as long as wide and 1.74 times as long as sum of A2–A6. Mesoscutum transverse, 1.23 times as wide as long.

Metasoma 1.13 times as wide as mesosoma. T2 1.60 times as wide as long, being the largest tergite of the metasoma. Distal margin of T7 convex.

Male: Unknown

Type material. Holotype female: Brazil, Rio de Janeiro, Parque Nacional de Itatiaia, 18.XII.2011, 1500 m., Araujo, C. coll. Pitfall (MNRJ).

Etymology. The specific name of this new species refers to the State of Rio de Janeiro. In Brazil, the native from this state is usually referred to as fluminense, from the Latin word “ flumen ” (stream or river).

Figures

FIGURES 1 – 3. Baeus fluminensis new species (Holotype female). 1: Frontal view. 2: Dorsal View. 3: Lateral view. Scale bar: 0.200 mm.

FIGURES 16 – 18. Laterodistal edge of the clypeus. 16: Baeus fluminensis new species (Holotype female). 17: Baeus morenus new species (Holotype female). 18: Baeus leucophthalmus new species (Holotype female). Scale bar: 0.017 mm.