Aperileptus albipalpus ( Gravenhorst, 1829 )

Watanabe, Kyohei, 2023, Taxonomic and Zoogeographic Notes on Japanese Orthocentrinae (Hymenoptera, Ichneumonidae), with Descriptions of Four New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 52, pp. 7-44 : 10-11

Aperileptus albipalpus ( Gravenhorst, 1829)

[New SJN: Tairiku-tsuya-hae-himebachi]

( Figs. 2A–C, 22I)

Plectiscus albipalpus Gravenhorst, 1829: 986 . Aperileptus penetrans Förster, 1871: 76 .

Aperileptus fungicola Förster, 1871: 77 .

Aperileptus placidus Förster, 1871: 77 .

Aperileptus tutorius Förster, 1871: 77 .

Aperileptus vacuus Förster, 1871: 77 .

Aperileptus custoditor Förster, 1871: 78 .

Aperileptus euryzonus Förster, 1871: 78 .

Aperileptus exstirpator Förster, 1871: 78 .

Aperileptus frontalis Förster, 1871: 78 .

Aperileptus impacatus Förster, 1871: 78 .

Aperileptus conformis Förster, 1871: 79 .

Aperileptus vittiger Förster, 1871: 79 .

Phytodietus gracilis Provancher, 1875: 331 .

Proedrus delicatus Ashmead, 1897 in Slosson, 1897: 237. Catastenus valerius Davis, 1897: 243 .

Aperileptus clypeatus Ashmead, 1902 in Slosson, 1902a: 6.

Aperileptus nigrovittatus Strobl, 1904: 123 . Aperileptus nigricarpus Strobl, 1904: 124 . Aperileptus clypeatus Cushman, 1922: 4 .

Aperileptus delicatus Cushman, 1922: 5 .

Diagnosis. Epicnemial carina absent ventrally ( Fig. 22I). Maximum width of face 2.7–3.3 times as long as malar space. Ovipositor sheath, 1.3–1.6 times as long as hind tibia, 0.40–0.48 times as long as fore wing. T I more or less polished. Male hind femur without a dorsolateral pit. Face usually light brown or light spots below the antenna sockets (female: Fig. 2B) or entirely yellow (male). Metasomal tergites usually with a reddish-brown area ( Figs. 2A, C). Fore wing length 3.5–5.5 mm.

Materials examined. JAPAN: EUM, F, Hokkaido. Sapporo City, Hitsujigaoka , 21–28. V. 2003, K. Konishi leg. (MsT) ; EUM, 2 F, ditto, 11–18. VI. 2003 ; EUM, F, 18–25. VI. 2003 ; EUM, F, ditto, 25. VI. – 2. VII. 2003 ; EUM, F, ditto, 2–9. VII. 2003 .; EUM, 2 F, 11–18. VII. 2011 ; EUM, 2 F, Hokkaido, Sapporo City, Usubetsu , 29. IV. – 24. V. 2012, N. Kuhara leg. (MsT) ; NARO, F, Hokkaido, Kumaishi, Kenichi-gawa, Iwafuchi-zawa , 10–21. VIII. 1995, Y. Ito & T. Ito leg. (MsT) ; NARO, F, Hokkaido, Eniwa, Izari, Ichankoppe-zawa , 20–30. VI. 1995, Y. Ito leg. (MsT) ; KPM-NK 81184 , F, Hokkaido, Sapporo City, Mt. Soranuma-dake , 14. VI. – 4. VII. 2007, A. Ueda leg. (MsT) . CRIMEA: ZISP, F (det. Rossem), Mezhhirya , 9. IX. 1980, D. R. Kasparyan leg.

Bionomics. Unknown in Japan. Some Mycetophila species ( Mycetophilidae ) were recorded as hosts ( Yu et al., 2016).

Distribution. Japan (Kunashiri Is. and Hokkaido); widely distributed in the Holarctic region ( Yu et al., 2016).

Remarks. This is the first record of this species from Hokkaido.