Physotarsus saltilloensis Reshchikov

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

Physotarsus saltilloensis Reshchikov sp. n.

Figs 17–19

Diagnosis. Physotarsus saltilloensis Reshchikov sp. n. can be distinguished from all other described species of Physotarsus by the combination of the following characters: 1) short first metasomal tergite (1.3X as long as apically broad), 2) wide temple ( Figs 17, 19 ), 3) entirely yellow face, fore and middle legs red and entirely black metasoma ( Figs 17–19 ).

Description. Female. Body length 3.5 mm. Antennae with 25 flagellomeres each. Scapus 0.7 times as broad as long. Head not narrowed behind eyes, shining. Maximal length of temple equal transverse eye diameter; minimal length of temple 0.76 times transverse eye diameter. Face 1.08 times height of eye; quite strongly protruding medially, with bulge, densely punctuate ( Fig. 18 ). Interantennal area flat. Clypeus separated from face by transverse shallow groove; projecting anteriorly, with thick margin. Clypeus about 3.3 times as wide as long. Clypeal foveae not large, pointed laterally. Lateral ocelli separated by about 1.6 times their widest diameter from each other and about 1.2X their widest diameter from eye margin ( Fig. 19 ). Malar space 0.4 times basal mandible width. Occipital carina present on ventral and lateral part of head. Lower mandible tooth longer than upper.

Mesosoma densely punctate, shining. Pronotum smooth, impunctate, shining. Mesoscutum shining and densely punctate. Notaulus not impressed. Epicnemial carina parallels anterior margin of mesopleuron. Mesopleuron punctate, shining. Claws with stout setae basally. Hind tarsi 1.1 times as long as hind tibia; each article of hind tarsi length ratio 7:3:2:1.5:1.5 ( Fig. 17 ). Fore wing stigma about 3.1 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, impunctate medially, distinctly punctate laterally, with impressions above hind coxae.

Metasoma shining. First metasomal tergite 1.3 times as long as apically broad; with median impression at base and without longitudinal carinae. Second metasomal tergite elongate. Ovipositor straight, as long as height of metasoma apically.

Color. Head mostly black, face entirely black ( Fig. 18 ), with narrow black line dorsally extending from frons to dorsal tubercle of face. Antennae dark brown. Mesosoma almost entirely black, except meso- and metascutellum, a short pale stripe anterolaterally on mesoscutum yellow. Metasomal entirely black. All coxae black. Fore and middle legs otherwise red. Hind femora and tibiae red, tarsi darker. Fore wing hyaline.

Material. Holotype female, Mexico, Coahuila, 167 km W Saltillo desietro, 10.vii.2000, leg. D.K. Kasparyan, Universidad Autуnoma de Tamaulipas, Cd. Victoria, Mexico, UAT.

Distribution. Mexico.

Etymology. The species epithet refers to the city Saltillo, Mexico. The species has been found from locality near by this city.

Figures

FIGURES 17 – 19. Holotype female. Physotarsus saltilloensis Reshchikov sp. n. 17) habitus, lateral view; 18) face; 19) habitus, dorsal view, punctuation of mesonotum.