Aoplus ocellator, Riedel, 2020

Riedel, Matthias, 2020, Contribution to the knowledge of Ichneumoninae of Siberia and Far East Russia (Hymenoptera, Ichneumonidae), Beiträge Zur Entomologie = Contributions to Entomology 70 (2), pp. 365-386 : 372

Aoplus ocellator spec. nov.

urn:lsid:zoobank.org:act:48A8BD7B-482E-46DB-A330-DD5EEB39DE4C

( Figs 1 , 9 , 11, 13)

Holotype:  “ Russia, Primorskiy kray, Tamga , 17 km NE Lesozavodsk, 45.37° N 133.36° E, 24.V. 1993, 130 m, leg. A. Taeger ” ( SDEI).

Description: . Body length 9.5 mm. Flagellum slightly lanceolate, with 32 flagellomeres; 1 st flagellomere 3.5x longer than wide; c. 13 th flagellomere square; widest flagellomere c. 1.2x wider than long. Temple strongly and almost linearly narrowed behind eye, dorsally 0.35x as long as eye. Ocelli large, distance of lateral ocellus to eye 0.8x ocellar diameter. Frons granulate and with scattered superficial punctures. Face densely punctate and granulate. Clypeus densely punctate, ± shining. Gena densely punctate ventrally, 0.7x as wide as eye. Mandible with two teeth, lower tooth smaller than upper one and slightly bent inwards. Malar space 1.2x as long as width of mandibular base. Genal carina reaching hypostomal one away from mandibular base, both carinae low.

Mesosoma covered with short brownish hairs. Notaulus impressed in frontal 1/5 of mesoscutum. Mesoscutum granulate and with dense fine punctures, matte. Mesopleuron and metapleuron finely and densely rugose-punctate; speculum punctate, shining. Juxtacoxal carina present. Scutellum moderately elevated, slightly wider than long, with scattered punctures and lateral carina in its basal 0.3. Areae basalis and superomedia confluent. Area basalis roundly protruding forward medially, but without distinct median tubercle. Area superomedia hexagonal, slightly wider than long; costula distinct medially, obsolete laterally, reaching area superomedia in its middle. Area petiolaris finely rugose, without lateral carina. Hind coxa densely punctate, with large but low whitish scopa. Hind femur densely punctate, 3.9x longer than wide. Claws not pectinate.

Areolet almost quadrangular, frontal distance of intercubiti 1x their diameter; 2 nd recurrent vein in its middle. Nervulus postfurcal (1x its width).

Metasoma oxypygous. Postpetiolus moderately widened, without dorsal carina, finely rugose; lateral field 0.6x as wide as median field. Gastrocoelus impressed, with some fine ridges. Thyridium large, oblique, 2.0x wider than the interval. 2 nd tergite about as long as wide. 2 nd and 3 rd tergites granulate and with fine superficial punctures, matte. Following tergites granulate. Ovipositor sheath distinctly extending behind metasomal apex (by length of 3 rd hind tarsomere).

Color: Black. Stripes on flagellomeres 7-12 ivory. Scape ventrally, narrow stripe on orbit opposite of antennal grooves, small spot on vertex, stripe on collare and hind edge of pronotum orange. Metasoma black; median field of postpetiolus, 2 nd and 3 rd tergites completely and 4 th tergite basally with dark chestnut-brown shine. Legs black; all femora narrowly red basally; fore and mid tibiae and tarsi brownish frontally; hind tibia dark brownish, infuscate apically. Wings hyaline; pterostigma yellow.

: unknown.

Remark: This new taxon resembles A. teranishii (UCHIDA, 1929) , but differs by a smaller body, distinct scopa on hind coxa, dark reddish-brown basal tergites, yellow pterostigma and black outer orbit.

Figures

Figs 1–8: Habitus of: 1. Aoplus ocellator spec. nov. , 2. Chasmias paludator sibiricus subspec. nov., 3. Coelichneumon septenus TOWNES et al., new , 4. Protichneumon nigriventris spec. nov. , 5. Ichneumon flavocoxalis spec. nov., 6. Ichneumon megextensorius spec. nov., 7. Ichneumon pilocephalus spec. nov., , 8. Ichneumon taegeri spec. nov. .

Fig.9: Head fromdorsal of Aoplusocellatorspec. nov., 10. Face of Chasmiaspaludator sibiricus subspec. nov.. – Figs 11–12: Basal tergitesof:11. Aoplus ocellatorspec. nov., 12. Chasmiaspaludator sibiricus subspec. nov.. – Figs 13–14: Propodeum of:13. Aoplus ocellator spec. nov. , 14. Chasmias paludator sibiricus subspec. nov. .