Physotarsus iquitos Reshchikov and Sääksjärvi, 2015

Reshchikov, Alexey & Sääksjärvi, Ilari Eerikki, 2015, Seven new species of the genus Physotarsus Townes 1966 (Hymenoptera, Ichneumonidae) from South America, Zootaxa 3972 (1) : -

Physotarsus iquitos Reshchikov and Sääksjärvi sp. n.

Figs 1–3 .

Diagnosis. Physotarsus iquitos Reshchikov and Sääksjärvi sp. n. can be distinguished from all other described species of Physotarsus by the combination of the following characters: 1) only one hyaline stripe in fore wing ( Fig. 1 ), 2) entirely yellow body ( Figs 1–3 ), 3) apical part of hind tibiae and tarsi entirely brown, 4) flagellum black and apically yellow ( Fig. 1 ).

Description. Female. Body length 5 mm. Antennae with 30 flagellomeres each. Scapus 0.65 times as broad as long ( Fig. 3 ). Head narrowed behind the eyes, shining. Maximal length of temple 0.7 times transverse eye diameter; minimal length of temple 0.5 times transverse eye diameter. Face 0.9 times height of eye; moderately flat, with bulge ( Fig. 3 ). Face sparsely covered with pale setae. Interantennal area flat. Clypeus separated from face by transverse groove; projecting anteriorly, with wide central lobe. Clypeus short, about 4.9 times as broad as long. Clypeal foveae small, elongate. Lateral ocelli separated by about 0.21 times their widest diameter from each other and about 2 times their widest diameter from eye margin. Malar space 0.63 times basal mandible width ( Fig. 3 ). Occipital carina present on ventral part of head. Lower mandible tooth slightly longer than upper.

Mesosoma smooth, shining, without punctures. Pronotum smooth, impunctate, shining. Mesoscutum shining and impunctate. Notaulus not impressed. Epicnemial carina strongly turning towards anterior margin of mesopleuron. Mesopleuron impunctate, shining. Tarsal claws elongate, not pictinate. Hind tarsi 1.25 times as long as hind tibia; each article of hind tarsi length ratio 20:7:5:4:5. Fore wing stigma about 6.3 times longer than wide. Radius intercepted stigma before its middle. Second recurrent vein with a single bulla. Nervellus intercepted below middle. Nervulus intersticial. Propodeum without carinae.

Metasoma shining. First metasomal tergite 2.5 times as long as apically broad; without shallow median longitudinal impression and longitudinal carinae. Second metasomal tergite square. Subgenital plate not enlarged, in male shallowly U-shaped notched ( Fig. 2 ). Parameres not shorter than aedeagus ( Fig. 2 ). Ovipositor straight, as long as height of metasoma apically.

Color. Yellow red ( Figs 1–3 ). Hind tarsi and tibiae apically dark. Fore wing with only one hyaline stripe, infuscate. Scape black, flagellum black and apically yellow.

Material. Holotype female, Peru, Department of Loreto, Iquitos area, Allpahuayo, Malaise trap, 16.vii– 2.viii.2000, clay, Sääksjärvi I.E., UNSM; Paratypes: female & male, the same location as the holotype, ZMUT and UNSM; 2 males, Peru, Department of Loreto, Iquitos area, Allpahuayo, Malaise trap, 22.v–11.vi.2000, white sand, Sääksjärvi I.E., ZMUT and UNSM; 1 female, Peru, Cusco, Pagoreni Camp, 11°42’16.6’’S 72°54’15.2’’W, 460m., Malaise trap, 25.ix.1998, leg. J.Santisteban, UNSM.

Distribution. Peru.

Etymology. The species epithet refers to the city of Iquitos . The city of Iquitos (Department of Loreto, Peru) is located close to the type locality (National Reserve of Allpahuayo-Mishana).

Figures

FIGURES 1 – 3. Paratype female (1, 3) and paratype male (2) Physotarsus iquitos Reshchikov and Sääksjärvi sp. n. 1) habitus; 2) male genitalia; 3) face.