Rhinotorus campester, 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 : 9-10

Rhinotorus campester sp. nov.

urn:lsid:zoobank.org:act:806F63AB-DD96-4D66-BBC5-14B1C225D763

Fig. 4

Diagnosis

This species is distinguished from other species in the genus by the following characters: face and clypeus weakly projecting; clypeus 0.4 times as high as wide, distinctly separated from face by a deep impression, strongly projecting medially, shining and sparsely punctate, its apical margin thin and laterally impressed ( Fig. 4A ); male with lateral lobes of mesoscutum and lower part of mesopleuron yellow ( Fig. 4D ); male first metasomal tergite flat in profile ( Fig. 4E ); parameres broad ( Fig. 4 B–C).

Etymology

Species epithet (Latin “ campester ” – flat) refers to the morphology of the first metasomal tergite ( Fig. 4E ).

Type material

Holotype

NORWAY: Ƌ, Nord-Trøndelag, Høylandet, Tverråa stream 340 m, 64.39° N 12.08° E, MT, 1 Jul. 1986, leg. K. Aagaard, NTNU.

Description

Female

Unknown.

Male

Fore wing length around 9 mm. Antenna slender, around 1.3 times as long as fore wing and with 38 flagellomeres. Ratio of length of 1 st plus 2 nd flagellomeres to eye height 0.85. Scape 1.25 times as long as broad. Head very weakly narrowed behind eyes, matt, without punctures and shagreened. Lateral ocellus separated from eye margin by 1.6 times their widest diameter. Face transverse, 1.9 times as broad as high and densely punctate ( Fig. 4A ). Clypeus 0.4 times as high as wide, distinctly separated from face by a deep impression, strongly projecting medially, shining and sparsely punctate, its apical margin thin and laterally impressed. Clypeal fovea deep. Malar space 0.7 times basal mandible width. Occipital carina complete. Mandible teeth of equal length.

Mesoscutum weakly shining, finely granulate and with dense punctation. Notaulus distinct. Mesopleuron finely granulate, striated in upper part, shining, distinctly densely and coarsely punctate ( Fig. 4D ). Metapleuron weakly shining, rugose, with rather dense but vague punctation in upper part. Propodeum strongly rugose.Area superomedia fused with area basalis, their combined area 2.6 times as long as broad. Costula absent. Area apicalis trapezoidal, 0.6 times as long as broad, and equal to 0.5 of propodeum, often with longitudinal carina and sometimes with striation. Spiracles weakly oval, 1.56 times as long as broad. Hind femur 5 times as long as broad. Hind tibia 7.9 times as long as apically broad. First tarsomere of hind leg 6.7 times as long as broad and 2.1 times as long as second tarsomere. Claws not pectinate. Fore wing with pterostigma elongate, around 3 times as long as broad and intercepted by Rs before its middle. 2m-cu straight, with a single bulla. Cu-a vertical, slightly postfurcal. Hind wing with 1/Cu & cu-a intercepted by 2/Cu in lower 0.5.

Metasoma coarsely punctate and reticulate rugose. First metasomal tergite as long as apically broad and projecting dorsally, its dorsal longitudinal carinae reaching middle of tergite and with strong impression between carinae in basal part. Area between dorsal carina and spiracle with longitudinal impression. Spiracles projecting laterally. Subapical transverse impression strong, slightly wider laterally than medially. First metasomal sternite 0.3 times as long as its tergite. Second metasomal tergite 0.5 times as long as apically broad, its transverse impression starting immediately after middle of tergite. Third tergite with weak transverse impression. Parameres broad ( Fig. 4 B–C).

Host records

Unknown.

Distribution

Norway.

Figures

Fig. 4. Rhinotorus campester sp. nov., holotype, Ƌ. A. Face. B. Male genitalia laterally. C. Male genitalia ventrally. D. Mesopleuron. E. Habitus.