Rhinotorus tarsilatus, Reshchikov, 2016

Reshchikov, Alexey V., 2016, A revision of the genus Rhinotorus Förster, 1869 (Hymenoptera, Ichneumonidae, Ctenopelmatinae), with descriptions of three new species and an illustrated identification key, European Journal of Taxonomy 235 (235), pp. 1-40 : 30-32

Rhinotorus tarsilatus sp. nov.

urn:lsid:zoobank.org:act:6BF50C79-BF01-4932-A59C-3C998657C467

Fig. 13

Diagnosis

This species is distinguished from other species in the genus by the following characters: female face entirely black ( Fig. 13A ); hind femur 4.2 times as long as broad and basal tarsomere of hind tarsus relatively stout (6 times as long as broad) ( Fig. 13D ); mesopleuron coriaceous, matt and impunctate; scutellum black; transverse impressions of first and second metasomal tergites rather distinct ( Fig. 13C ); metasoma with second and third metasomal tergites dark reddish ( Fig. 13C ).

Etymology

Species epithet refers to the morphology of the hind tarsus.

Type material

Holotype

NORWAY: ♀, AK, Frogn, Frogn Church, oak groove, Malaise trap, 17 May–21 Jun. 2004, leg. L.O. Hansen & E. Rindal, ZMUN.

Paratype

U.K.: 1 ♀, England, Sussex, W of Arundel, 20 Aug. 1984, leg. M. Edwards, BMNH.

Description

Female

Fore wing around 9 mm long. Antenna slender, with 34 flagellomeres, about as long as fore wing. Ratio of length of 1 st plus 2 nd flagellomeres to eye height 1.1. Scape as long as broad. Head not narrowed behind eyes, matt, without punctures, shagreened ( Fig. 13B ). Lateral ocellus separated from eye margin by 1.6 times their widest diameter. Face transverse 2.2 times as wide as high, without punctures and shagreened ( Fig. 13A ). Clypeus 0.4 times as high as wide, distinctly separated from face by a deep impression, projecting medially, shining, its apical margin obtuse medially and impressed laterally. Clypeal fovea deep. Malar space 0.9 times basal mandible width. Occipital carina complete. Mandible teeth of equal length.

Mesoscutum weakly shining, finely granulate. Notaulus distinct. Mesopleuron shining and finely punctate. Metapleuron weakly shining, rugose and with dense punctation. Propodeum rugose. Area superomedia fused with area basalis, their combined area 2.5 times as long as broad. Costula absent. Area apicalis trapezoidal, often with longitudinal carina, 0.5 times as long as broad and equal to 0.4 of propodeum. Spiracles weakly oval, 1.4 times as long as broad. Hind femur 4.2 times as long as broad. Hind tibia 6.6 times as long as apically broad. First tarsomere of hind leg 6 times as long as broad and 2 times as long as second tarsomere. Claws not pectinate. Fore wing with pterostigma short, around 2.3 times as long as broad and intercepted by Rs at its middle. 2m-cu curved, with a single bulla. Cu-a vertical, postfurcal. Hind wing with 1/Cu & cu-a intercepted by 2/Cu in lower 0.5.

Metasoma strongly punctate ( Fig. 13C ). First metasomal tergite 1.1 times as long as apically broad, projecting dorsally, its dorsal longitudinal carinae reaching middle of tergite and with a strong impression between the carinae in basal part. Area between dorsal carina and spiracle with longitudinal impression. Spiracles projecting laterally. Subapical impression strong and rather broad. First metasomal sternite 0.2 times as long as its tergite. Second metasomal tergite 0.5 times as long as apically broad, its transverse impression at its middle ( Fig. 13C ). Third tergite with a distinct transverse impression ( Fig. 13C ). Ovipositor sheaths weakly cone-shaped and as long as height of last visible tergite. Ovipositor stout at base with shallow subapical notch.

Colouration: body mostly black ( Fig. 13 ); apical part of clypeus, legs (except coxae, trochanters, apical part of hind femur and apical part of hind tibia and hind tarsus), second and third metasomal tergites and fore edge of fourth metasomal tergite reddish ( Fig. 13C ).

Male

Unknown.

Host records

Unknown.

Distribution

Norway, U.K.

Figures

Fig. 13. Rhinotorus tarsilatus sp. nov., holotype, ♀. A. Face. B. Head dorsally. C. Metasoma. D. Habitus.