Hemiphanes Förster, 1869

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 : 19-21

Genus Hemiphanes Förster, 1869

Hemiphanes Förster, 1869: 172 . Type species: Hemiphanes flavipes Förster, 1871 . Designated by Viereck (1914).

Two species, H. erratum and H. flavipes Förster, 1871 , have been recorded from Japan ( Kasparyan et al., 2012). In this study, I record H. gravator Förster, 1871 from Japan for the first time, and some distribution data of Hem. erratum Humala, 2007 from Hokkaido and Honshu. In addition, one new species, H. japinicum sp. nov., is described. Although Santos (2017) treated that this genus is a member of the subfamily Cryptinae , I follows the previous system of the classification.

Key to world species of Hemiphanes

(Male of H. montanum and females of H. hortense and H. innusitatum are unknown)

1. Occiput with a median concavity ( Figs. 22C, D ). Occipital carina at least absent dorsally ( Figs. 22C, D ). ……………………………………………………… 2

-. Occiput without a concavity ( Figs. 9C , 22B ). Occipital carina complete dorsally ( Fig. 22B ). ……………………………………………………… 3

2. Occipital carina present except for area near concavity ( Figs. 22C, D ). Tyloid of male present on FL VIII to FL XIII (usually FL IX to FL XII). .......................................... H. gravator Förster, 1871

-. Occipital carina absent. Tyloid absent. Female unknown. ...............................….. H. hortense Rossem, 1987

3. Clypeus with a deep median semicircular notch. Teeth of mandible equal in length. Male unknown. ...........................…. H. montanum Rossem, 1987

-. Clypeus without a deep notch, only slightly concave medially ( Fig. 22E ). Upper tooth of mandible longer than lower tooth...........................................................................4

4. FL I short, 3.0 times as long as apical width. Tyloid absent. Female unknown. ................................. H. inusitatum Rossem, 1987

-. FL I longer than 5.0 times as long as apical width. Tyloid various.........................................................................5

5. Lateral lobe of mesoscutum with a large smooth area except for its edges and proximal parts ( Fig. 9C ). Tyloid of male present on FL VIII to FL XI ( Fig. 22G : absent in some Japanese males; see below). ..................................... H. erratum Humala, 2007

-. Lateral lobe of mesoscutum polished but nearly entirely covered with short hairs ( Fig. 11C ). Tyloid of male absent or weakly present on FL IX to FL XII...................................................................................6

6. T I of female 2.3 times as long as maximum width. Hind femur 4.5 times as long as maximum depth in lateral view. Malar space 1.6 times as long as basal width of mandible. Tyloid of male absent or weakly present on FL IX to FL XII. ........................................... H. flavipes Förster, 1871

-. T I 1.4–1.9 of female times as long as maximum width. Hind femur more than 5.0 times as long as maximum depth in lateral view. Malar space 1.1–1.4 times as long as basal width of mandible. Tyloid of male absent.....................................................................7

7. T I 1.4 times as long as maximum width. Propodeum without lateromedian longitudinal carinae. Hind femur 5.0 times as long as maximum depth in lateral view. Male unknown. ..................... H. performidatum Rossem, 1988

-. T I 1.7–1.9 (female) or 1.7–2.2 (male) times as long as maximum width. Propodeum with anterior section of lateromedian longitudinal carinae. Hind femur 5.2–5.7 times as long as maximum depth in lateral view. ........................................ H. japinicum sp. nov.

Figures

Fig. 22.A, F: Apoclima brevicauda sp. nov. (A: NARO, holotype, female; F: NARO, paratype, male); B, F: Hemiphanes japonicum sp. nov. (B, E: NARO, paratype, female); C, D: H. gravator Förster, 1871 (KPM-NK 81100, female); G: H. erratum Humala, 2007 (NARO, male); H, L: Eusterinx (Holomeristus) tenuicincta (Förster, 1871) (EUM, female); I: Aperileptus albipalpus (Gravenhorst, 1829) (KPM-NK 81184, female); J: Ape. vanus Förster, 1871 (KPM-NK 81109, female); K: E. (Divinatrix) kurilensis Humala, 2004 (NARO, female); M: E. (Ischyracis) bispinosa (Strobl, 1901) (EUM, female) ― A–C: head, dorsal view; D: head, posterodorsal view; E: head, frontal view; F: flagellum, lateral view; G: flagellum, ventral view; H: mesoscutum and scutellum, dorsal view; I, J: mesopleuron, lateral view; K: T I–T IV, dorsal view; L: area superomedia of propodeum; M: propodeum, lateral view.

Fig. 9. Hemiphanes erratum Humala, 2007 (A–D: KPM-NK 81106, female) ― A: lateral habitus; B: head, frontal view; C: head and mesoscutum, dorsolateral view; D: head, mesosoma, and metasoma, dorsolateral view.

Fig. 11. Hemiphanes japonicum sp. nov. (A–D: KPM-NK 81113, holotype, female; E–G: KPM-NK 81116, paratype, male) ― A, E: lateral habitus; B, F: head, frontal view; C: head and mesoscutum, dorsolateral view; D, G: head, mesosoma, and metasoma, dorsal view.