Casinaria tegulata, Riedel, 2018

Riedel, Olmgren Matthias, 2018, Revision of the Western Palae arctic species of the genus Casinaria H (Hymenoptera, Ichneumonidae, Campopleginae), Linzer biologische Beiträge 50 (1), pp. 723-763 : 749-750

Casinaria tegulata nov.sp. ( figs 27 , 43)

Holotypus: (♀) [red]118; Nürnberg 16.5.1952 (ZSM).

Paratypus: (♀) Schwäb.Alb/Heuberg, Stetten a.k.M., Schulfenster 1.10.1971, I.Wall (coll. RIEDEL); (♀♂♂) Traunstein 29.9.1961; 118 (ZSM); (♂) 28.9.1962 Traunstein (coll. RIEDEL); (♂) 13.9.1962 Traunstein (ZSM); (♂) 30.9.1961 Traunstein; 118 (ZSM); (♂) Traunstein, 1.10.1962; 118 (ZSM); (♂) 8.7.43 Orel (ZSM); (♂) 20.9.1961 Traunstein (ZSM); (♂♂) Mai´48 Haag; HEINRICH lg. (ZSM)

R e m a r k: This new species is closely related to C. tenuiventris (GRAVENHORST), but was already separated by R. HINZ (unpublished, his spec. 118). It differs by the features given in the key.

D e s c r i p t i o n: ♀: Body length (7.5) 8-10 mm. Flagella with 35-37 segments; 1 st flagellomeres length 3.5x width; preapical flagellomeres square or slightly longer than wide. Temples narrow, roundly narrowed behind eyes, width c.0.6x eye width; head 2.4x wider than long. Distance of lateral ocelli to eyes c.1.0x and between them 1.6x their diameter. Face narrowed ventrally, rugose-punctate, minimal width 0.66x eye length and 0.9x width of frons. Malar space length 0.5x width of mandibular bases. Genal carinae strongly bent outwards ventrally, reaching at mandibular bases in an angle of c.90°. Hypostomal carinae not elevated.

Mesopleural discs granulate and ± punctate; specula granulate, matte; dorsal impressions finely striate; metapleura rugulose-punctate, in the ventral parts with some rugae; coxal carinae absent. Prepectal carina narrow, absent on transversal parts. Propodeum usually without carinae; area petiolaris slightly impressed, finely rugulose and with some transverse rugae apically. Hind femora length c.5.0x width; length of inner spurs of hind tibiae 0.8x hind metatarsus length. Hind claws pectinate. Areolets stalked, 2 nd recurrent veins slightly basal of or in the middle; nervuli postfurcal; postnervuli intercepted in or behind its middle; external angles of discoidal cells acute (75-80°); nervelli of hind wing, reclivous, not intercepted. 2 nd tergite length 1.6-1.8x width; distance of thyridia from basal margin 1.5-2x their length; 3 rd tergite length 0.9-1.0x width.

Colour: Black. Palps reddish-yellow, often partly infuscate; mandibles except reddish teeth and tegulae black. All coxae and trochanters black; legs otherwise red; hind tibiae ivory basally, red or reddish-yellow externo-medially, pale brownish subbasally and apically; froe and middle tarsi often partly infuscate; hind tarsi except ivory base of hind metatarsi dark brown. Pterostigmata brown.

♂: Body length 7.5-9.5 mm. Flagella with 35-36 segments; 2 nd tergite length c. 1.7-2.0x width; 3 rd tergite length c.1.0x width. Structure and colour otherwise as described for the ♀.

H o s t s: unknown.

D i s t r i b u t i o n:Germany,Russia.

Figures

Figs 25-28: Propodea of ♀♀ of: (25) Casinaria tenuiventris (GRAVENHORST); (26) C. petiolaris (GRAVENHORST); (27) C. tegulata nov.sp. HT, (28) C. pyreneator AUBERT.