Epirhyssa gavinbroadi, Rousse & Noort, 2014

Rousse, Pascal & Noort, Simon Van, 2014, A review of the Afrotropical Rhyssinae (Hymenoptera: Ichneumonidae) with the descriptions of five new species, European Journal of Taxonomy 91, pp. 1-42 : 14-17

Epirhyssa gavinbroadi sp. nov.

urn:lsid:zoobank.org:act:94C30C69-E07C-4C48-BB79-3B3D903665EE

Fig. 2

Diagnosis

Bright yellow overall with isolated dorsal black markings; wings hyaline, slightly infuscate apically; face rugulose-punctate, moderately protruding dorsally; clypeus punctate, with median subapical tubercle moderate, ventral margin strongly produced laterally; frons smooth with a sharp mid-longitudinal carina reaching median ocellus and lateral curved carina toward lateral ocellus; antenna with more than 35 flagellomeres; mesopleuron with epicnemial carina reaching level of mesopleural pit; subtegular ridge concave, laterally flanged; fore wing with 2m–cu slightly apical to rs–m; tergite 1 slender; tergites 1–5 smooth, following tergites densely and finely punctate; apical margins of tergites 3–7 strongly concave. CT 2.7; ML 0.5; POL 1.3; OOL1.6; Fl 1 4.2; Fl 15 1.8; T1 1.7; OT 5.2.

Differential diagnosis

A mostly bright yellow species with hyaline wings, otherwise characterized by the combination of the punctate clypeus, the concave and flanged subtegular ridge, and the sharp mid-longitudinal carina on the frons, which separates this species from other yellow species with hyaline wings (these species have a strigose or hardly sculptured clypeus, and all of them except E. uelensis have no flange on the subtegular ridge).

Etymology

Dedicated to Gavin Broad for his constant support and his most valuable advice.

Type material

Holotype

CAMEROON: ♀, Nkoemvon , 02°48’ N 11°08’ E, 16 Mar.–4 May 1980. Ms D. Jackson ( BMNH).

Description

Female (holotype)

B 15.7; A NA; F 12.1.

COLOR. Bright yellow overall with black markings: mandible, mid-apical tubercle on clypeus, vertex, temple, occiput mid-dorsally, mesoscutum but postero-lateral margins and a central macula , and a small mid-posterior macula on tergites 3–6; flagellum and ovipositor sheath dark brown; wings hyaline, slightly infuscate apically, venation brown.

HEAD. Face rugulose punctate, moderately protruding dorsally; clypeus punctate, with a moderate subapical median tubercle, ventral margin strongly produced laterally; mandible stout; frons smooth; inner margins of toruli expanded backwards into two converging lamellar carinae, carinae then fused into a sharp mid-longitudinal carina reaching median ocellus; frons also with an additional lateral curved carina from posterior margin of torulus to next to lateral ocellus; inter-ocellar area rugose, remainder of vertex and temple finely punctate; occipital carina mid-dorsally evanescent; antenna with more than 35 flagellomeres (apices broken).

MESOSOMA. Mesosoma moderately densely punctate, but mesonotum deeply transversely striate and anterior half of pronotum smooth; epomia very weak; epicnemial carina reaching level of mesopleural pit; apex of subtegular ridge concave, strongly flanged laterally; submetapleural carina slightly and evenly narrowed toward apex.

WINGS. Fore wing with 2m–cu slightly apical to rs–m, cu–a slightly apical to Rs&M, and Rs strongly bowed forwards; hind wing with distal abscissa of Cu joining Cu&cu–a close to junction with M.

METASOMA. Tergite 1 moderately slender; tergites 1–5 mostly smooth, apex of tergite 5 and following tergites finely and densely punctate; apical margins of tergites 3–7 strongly concave.

Male

Unknown.

Distribution

Cameroon.

Figures

Fig. 2. Epirhyssa gavinbroadi sp. nov., holotype, ♀. A. Habitus, lateral view (inset: data labels). B. Mesosoma, lateral view. C. Metasoma, dorsal view. D. Head, anterior aview. E. Mandibles, anterior view.