Tropistes shimizui, Watanabe, 2021

Watanabe, Kyohei, 2021, Taxonomic and Zoogeographic Study of the Japanese Phygadeuontinae (Hymenoptera, Ichneumonidae), with Descriptions of 17 New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 50, pp. 55-136 : 118-119

publication ID

https://doi.org/ 10.32225/bkpmnh.2021.50_55

publication LSID

lsid:zoobank.org:pub:DD695C62-DC2F-4D32-8D33-52648E28661D

DOI

https://doi.org/10.5281/zenodo.12773550

persistent identifier

https://treatment.plazi.org/id/F1C6B1F7-E9C1-4571-B4C4-18AC46D9CC95

taxon LSID

lsid:zoobank.org:act:F1C6B1F7-E9C1-4571-B4C4-18AC46D9CC95

treatment provided by

Felipe

scientific name

Tropistes shimizui
status

sp. nov.

Tropistes shimizui sp. nov.

(New SJN: Tachi-chibi-togari-himebachi)

( Figs 54A–D View Fig , 64F View Fig , 66T View Fig )

Etymology. The specific name is from Dr. So Shimizu, who is a young Japanese ichneumonologist and collector of holotype.

Type series. Holotype: KPM-NK 81833 , F, JAPAN, Nagano Pref., Ueda City, Sugadairakogen, Tsukuba University , 4–25. VI. 2015, S. Shimizu leg. (MsT).

Description. Female (n=1). Body length 6.7 mm. Body polished, covered with silver setae.

Head. Clypeus 2.7 times as wide as maximum length, sparsely punctate except for smooth anterior margin, its anterior margin rounded, without teeth. Face punctate ( Fig. 54B View Fig ), the interspace of punctures coriaceous. MSL 0.9 times as long as BWM. Frons and vertex punctate, the interspace of punctures coriaceous. Gena sparsely and finely punctate, largely smooth laterally. OOL shorter than POL. OOL and POL longer than OD. Occipital carina complete, its lower end joined with hypostomal carina distant from mandibular base. Upper tooth of mandible almost as long as lower tooth. Base of mandible slightly convex. Antenna with 26 flagellomeres. Subapical part of antenna not widened. All segments of flagellomeres longer than wide. FL III 6.67 times as long as maximum depth in lateral view.

Mesosoma 2.1 times as long as maximum depth in lateral view. Lateral part of pronotum smooth dorsally, longitudinally rugulose ventrally. Epomia indistinct. Mesoscutum punctate, the interspace of punctures coriaceous dorsally, smooth anteriorly and laterally. Notaulus distinct, fading out in front of center of mesoscutum. Scutellum sparsely punctate, without a lateral longitudinal carina except for base. Mesopleuron longitudinally rugulose dorsally and ventrally, median part coriaceous except for smooth speculum. Posterior transverse carina of mesosternum largely absent in front of mid coxae. Metapleuron sparsely punctate, with an indistinct juxtacoxal carina. Anterior transverse carina of propodeum absent except for median section ( Fig. 64F View Fig ). Posterior transverse carina of propodeum complete ( Fig. 64F View Fig ). Lateromedian longitudinal carina of propodeum present except for posterior section ( Fig. 64F View Fig ). Lateral longitudinal carina of propodeum complete except for indistinct anterior part ( Fig. 64F View Fig ). Pleural carina complete ( Fig. 64F View Fig ). Area basalis and area superomedia distinct ( Fig. 64F View Fig ). Anterior area of propodeum largely coriaceous. Median parts of propodeum transversely rugulose. Posterior part of propodeum largely smooth. Length of fore wing 4.7 mm. Areolet absent ( Fig. 54D View Fig ). Vein 2m-cu of fore wing with two bullae. Nervellus subvertical, intercepted near the middle ( Fig. 54D View Fig ). Hind femur 3.95 times as long as maximum depth in lateral view. Hind TS I: II: III: IV: V = 2.0: 0.9: 0.6: 0.3: 0.55. Tarsal claws simple.

Metasoma laterally compressed except for first segment ( Fig. 54C View Fig ). T I 3.0 times as long as maximum width, coriaceous. Median dorsal carina of T I absent. Dorsolateral carina of T I present in front of the spiracle. T II and T III longer than wide, coriaceous. Ovipositor sheath 1.8 times as long as hind tibia. Ovipositor distinctly downcurved ( Fig. 54A View Fig ), without a nodus and ventral teeth ( Fig. 66T View Fig ).

Coloration ( Figs 54A–D View Fig ). Body (excluding wings and legs) black to blackish brown. Apex of mandible tinged with brown. Palpi and tegula yellowish brown. Membranous part of metasomal sternites whitish brown. Ovipositor reddish brown. Wings hyaline. Veins yellowish brown to brown. Pterostigma brown. Legs reddish brown except for black to blackish brown coxae, trochanters, and trochantelli.

Male. Unknown.

Distribution. Japan (Honshu).

Bionomics. Unknown.

Remarks. This species resembles Tro. falcatus ( Thomson, 1884) in the character states of antenna, hind femur, and ovipositor, but it can be distinguished by the coxae black (orange in Tro. falcatus ), the tegula yellowish brown (brown in Tro. falcatus ), the metasomal tergites black (with red area in Tro. falcatus ), the anterior part of mesopleuron coriaceous medially (irregularly rugae in Tro. falcatus ), and the area petiolaris largely smooth (distinctly sculptured in Tro. falcatus ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Ichneumonidae

SubFamily

Phygadeuontinae

Genus

Tropistes

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