Gryon shisa Komeda & Mita, 2020

Komeda, Yoto, Mita, Toshiharu, Hirose, Yoshimi & Yamagishi, Kenzo, 2020, Taxonomic revision of charon -, floridanum - and muscaeforme - groups of Gryon Haliday, 1833 (Hymenoptera, Scelionidae) from Japan, with descriptions of two new species and host information, Journal of Hymenoptera Research 80, pp. 99-135 : 99

publication ID	https://dx.doi.org/10.3897/jhr.80.56178
publication LSID	lsid:zoobank.org:pub:F9DF28B5-BF75-45F5-860B-3FB234679C6D
persistent identifier	https://treatment.plazi.org/id/45003564-D0AB-4E7B-A91A-E6495DE3ADB1
taxon LSID	lsid:zoobank.org:act:45003564-D0AB-4E7B-A91A-E6495DE3ADB1
treatment provided by	Journal of Hymenoptera Research by Pensoft
scientific name	Gryon shisa Komeda & Mita
status	sp. nov.

Treatment

Gryon shisa Komeda & Mita sp. nov.

Figs 1E View Figure 1 , 2E View Figure 2 , 3E View Figure 3 , 4E View Figure 4 , 5E, K View Figure 5 , 7E View Figure 7

Diagnosis.

Horizontal portion of occipital carina curved, reaching central longitudinal line of lateral ocelli. Postgena smooth; postgenal sulcus straight; postgenal bridge smooth.

Description.

Female. Length = 1.6-1.7 mm.

Color. (Figs 1E View Figure 1 , 2E View Figure 2 ). Body mainly black. Mandibles brown. A1-6 and legs (excluding coxae) yellow.

Head. FCI = 1.15-1.22; LCI = 1.51-1.62; DCI = 1.75-1.88; HW/IOS = 1.88-2.14; head about 1.2 times as wide as mesosoma (HW/TSL = 1.10-1.19). Frons reticulate with setae, with transverse carina between eye and frontal depression; central carina weakly present in lower half of frontal depression, absent in upper half of frontal depression, present between enclosing carina of frontal depression and anterior ocellus; frontal depression weakly developed, with enclosing carina; antennal depression about 1.3 times wider than distance between eye and antennal depression (WAD/OAD = 1.19-1.40). Vertex reticulate with setae; interocellar space reticulate-granulate; hyperoccipital carina present; POL about six times as long as OOL (POL/OOL = 5.54-6.55); OOL about 0.3 times as long as LOL (OOL/LOL = 0.26-0.32). Clypeus trapezoidal, with rounded corners. Gena coriaceous with setae; medial genal carina present. Occiput transversely semi-elliptically costate, with setae; occipital carina complete; angular point of occipital carina developed; horizontal portion of occipital carina curved, reaching central longitudinal line of lateral ocelli; postoccipital carina present laterally; postgena smooth; postgenal sulcus straight; postgenal bridge smooth. Antennae (Fig. 5E View Figure 5 ) clavate; A1 about 4.8 times longer than radicle, about 1.2 times longer than clava; clava with six segments; claval sensilla formula A7-12/1-2-2-2-2-1; claval length about 4.1 times longer than width. Mandibles thin, tridentate, anterior tooth longer than other teeth.

Mesosoma. Cervical pronotal area costate dorsad, smooth-imbricate ventrad, with sparse setae; epomial carina strongly present, not reaching dorsal edge; pronotal suprahumeral sulcus foveolate with setae, unclear mesad; lateral pronotal area with transverse dense carina; pronotal cervical sulcus foveolete. Propleuron weakly transversely costate. Mesoscutum about 1.5 times as wide as long (TSL/ML = 1.44-1.61), reticulate; parascutal carina absent; notaulus absent. Mesoscutellum about 2.1 times as wide as long (SW/SL = 1.84-2.22), reticulate with setae, slightly produced posteriorly. Mesopleuron mesopleuron costate-reticulate above mesopleural canina, reticulate with setae below mesopleural canina; prespecular and upper mesepisternal sulci foveolate; prespecular sulcus with setae; mesopleural carina strongly present; postacetabular sulcus foveolate. Metascutellum weakly produced, striate. Metapleuron foveolate anteriorly, rugulose with dense setae posteriorly, with longitudinal irregular carina; anterior part of metapleural sulcus and upper paracoxal sulcus with setae. Propodeum foveolate, with setae laterad. Fore wing (Fig. 7E View Figure 7 ); stigmal vein about four times longer than marginal vein; postmarginal vein about 7.3 times longer than marginal vein.

Metasoma. T1 longitudinally striate, setose laterally. S1 longitudinally striate. T2 reticulate with setae laterally. S2 reticulate-granulate, with setae. T3 reticulate with setae. T4 reticulate-rugose with setae. T5-6 rugose with setae. S3-6 punctate with setae

Male. Almost same as female, but antennae (Fig. 5K View Figure 5 ) filiform; A1-11 yellow.

Host.

Coreidae : Paradasynus spinosus Hsiao, 1963.

Material examined.

Holotype: Okinawa pref., Okinawa Isl. , Kunigami Dist ., Ôgimi vill., Janagusuku . 30.VII.2002, Yasutsune Sadoyama leg. (emergence from an egg of Paradasynus spinosus ) 1♀ [ ELKU] . Paratypes. Same data as holotype. 3♂ 7♀ [ELKU] .

Distribution.

Japan (Ryukyus; Okinawa Is.)

Etymology.

The species name refers to Shīsā, the Okinawan traditional statue of the guardian lion, because this species defends the shequasar ( Citrus x depressa Hayata), a kind of citrus fruit, from the important pest ( Paradasynus spinosus ) on Okinawa Island. ( Zukeyama et al. 2007).

Remarks.

Among the species of the Gryon charon -group, G. shisa is the only species without sculpture on the postgena, except for the postgenal sulcus (Fig. 4E View Figure 4 ). This species also differs from G. philippinense in the shape and length of the postgenal sulcus ( G. shisa (Fig. 4E View Figure 4 ): straight; G. philippinense (Fig. 4D View Figure 4 ): curved toward hypostoma) and the length of horizontal portion of occipital carina ( G. shisa (Fig. 4E View Figure 4 ): long, reaching central longitudinal line of lateral ocelli; G. philippinense (Fig. 4D View Figure 4 ): short, reaching longitudinal extension line of outer margin of lateral ocelli or shorter). Among Vietnamese species, four species, G. ancinla Kozlov & Lê, 1996, G. clavaerus Kozlov & Lê, 1996, G. drunoris Kozlov & Lê, 1996, and G. sponus Kozlov & Lê, 1996 seem to belong to Gryon charon group, but their horizontal portions of occipital carinae is also short like G. philippinense .