Sadoletus izzardi Hidaka, 1959

Gao, Cuiqing & Rédei, Dávid, 2017, The identity of Equatobursa, with proposal of new genus and species level synonymies (Hemiptera: Heteroptera: Heterogastridae), Zootaxa 4237 (2), pp. 300-306 : 301-302

Sadoletus izzardi Hidaka, 1959

Sadoletus izzardi Hidaka, 1959: 199 . Holotype: ♀, Kyushu : Fukuoka Pref. , Fukuoka, Hirao ; ELKU .

Equatobursa nigra Zou, 1985: 94 , 96. Holotype: ♀, China: Hubei, Wuchang, Mt. Luojia; NKUM. New subjective synonym.

Mizaldus lewisi (non Distant, 1901): An (2010: 56). Misidentification.

Sadoletus izzardi: Slater (1964: 776) (catalogue, distribution), Miyamoto & Yasunaga (1989: 175) (catalogue, distribution), Miyoshi (1997: 43) (photo, records, bionomics, distribution), Nozaki & Nozaki (2005: 48) (photo, records), Ishikawa & Tomokuni (2012: 316) (diagnosis, photo, record, distribution), Yano et al. (2012: 90) (records), Ban & Ishikawa (2013: 196) (in key, diagnosis, photo, figures, records, distribution, host plants), Yano et al. (2013: 31) (record), Ishikawa (2016: 458) (catalogue, distribution).

Equatobursa nigra: Slater & O’Donnell (1995: 83) (catalogue, distribution), Péricart (2001: 102) (catalogue, distribution).

Equatoburosa [inadvertent error] nigra: Hua (2000: 188) (listed, distribution).

Mizaldus lewisi (misidentification): An (2010: 56) (photo, diagnosis, distribution).

Type material examined. Equatobursa nigra Zou, 1985 . Holotype: ♀, “< Wuchang Luojiashan > [ch] \ 1957. 8. 3.” [hw, with red frame], “ Equatobursa \ nigra \ Zou \ HOLOTYPE ” [red square, hw]; mounted on triangle, intact; NKUM ( Figs. 1–3 ) . Allotype: ♂, “<Jiangxi Lushan Guling> [ch, pr] \ 1965 [pr] - IX-14 [hw] \ < Liu Shengli > [ch, pr] \ < Tianjin Natural History Museum> [ch, pr]”, “ Equatobursa \ nigra \ Zou \ ALLOTYPE ” [red square, hw]; mounted on triangle, right hind tarsus lacking, genitalia dissected by us, preserved in plastic microvial with glycerol, pinned with the specimen; NKUM ( Figs. 4–11 ) . Paratypes: with locality label identical with that of the allotype,“ Equatobursa \ nigra \ Zou \ PARATYPE ” [yellow square, hw]; mounted on card, genitalia removed by previous worker, lacking (2 ♂♂ 1 ♀ NKUM) ; “<Zhejiang Tianmushan Xianrending> [ch, pr] \ 1965 [pr] VIII.8 [hw] \ < Liu Shengli > [ch, pr] \ < Tianjin Natural History Museum> [ch, pr]”, “ Equatobursa \ nigra Zou \ PARATYPE ” [yellow square, hw]; mounted on card, abdomen lacking (1 ♂ NKUM) .

Additional specimens examined. CHINA. Hunan: Zhangjiajie , 10.x.1985, leg. H.G. Zou (1 ♂ 1 ♀ [ Fig. 12 ] NKUM).

Diagnosis. Sadoletus izzardi is distinguished from its congeners by the following combination of characters: body elongate; head, pronotum and scutellum uniformly black, fore wings yellowish, apex of corium with dark suffusion; head relatively broad, only slightly narrower than pronotum; pronotum conspicuously constricted in the middle, midline of posterior lobe with a faint longitudial carina, humeri distinctly produced posteriad over bases of fore wings; clavus with three complete rows of punctures; hemelytra not exceeding apex of abdomen; legs without distinct dark annuli; female with posterior margins of abdominal ventrites III–IV straight, ventrites V–VI greatly narrowed in the midline, surrounding the elongate ovipositor.

Supplementary description of the genitalia of both sexes. (The external genitalia of both sexes were thoroughly illustrated by Ban & Ishikawa (2013), only corrections and supplementary notes are provided here.) Male. Genital capsule ( Figs. 7–8 ) broadly ovoid in posterior view, dorsal sinus of posterior aperture elliptical, ventral rim slightly protruding posteriad, with a pair of low, broad protuberances immediately mesad of paramere sockets and an equally broad but much longer projection medially; cuplike sclerite ( Fig. 8 : cs) greatly enlarged, broadly tongue-shaped, obtusely truncate dorsally, extending behind parameres in posterior view, reaching approximately to ventral third of dorsal sinus of posterior aperture. Parameres ( Fig. 8 : rp; Figs. 9–11 ) with long, sickle-shaped distal portion (= blade, = hook-like process) and a large, blunt sensory process at its base, blades projecting over each other in rest, sensory processes protrude from genital chamber, projecting laterally ( Figs. 7–8 ). Female. Ovipositor elongate, the two hemiventrites of the medially completely bisected ventrite VII are long therefore posterior margins of abdominal ventrites III–IV straight, ventrites V–VI greatly narrowed in the midline. Spermatheca with a long, thin duct ( Fig. 12 : sd), its length subequal to median length of abdomen; a simple, tubular intermediate part ( Fig. 12 : ip) with a ring-like, thickened portion immediately proximad of apical receptacle; apical receptacle ( Fig. 12 : ar) globose, with a transverse carina roughly around its equator but not surrounding it completely.

Distribution. Sadoletus izzardi is restricted to temperate East Asia ( Korea, central and eastern China, the main islands of Japan except of Hokkaido) but it is rarely collected everywhere in that area. The record of Neomizaldus lewisi ( Distant, 1901) (as Mizaldus lewisi ) from South Korea by An (2010) certainly pertains to this species; earlier records of M. lewisi from the country ( Miyamoto & Lee 1966, Lee 1971) are, however, apparently correct.

KOREA. South ( An 2010, as Mizaldus lewisi , misidentification). — CHINA. Hubei; Hunan ; Jiangxi ; Zhejiang ( Zou 1985, as E. nigra ; present paper). — JAPAN . Honshu; Shikoku; Kyushu; Shodo Island ( Ishikawa 2016).

Figures

FIGURES 1 – 6. Types of Equatobursa nigra Zou, 1985, and their labels. Fig. 1, holotype, dorsal view; Fig. 2, same, ventral view; Fig. 3, same, labels; Fig. 4, allotype, dorsal view; Fig. 5, same, ventral view; Fig. 6, same, labels. Scales in mm. © NKUM.

FIGURES 7 – 12. Genitalia of Equatobursa nigra Zou, 1985, male allotype (Figs. 7 – 11) and a non-type female (Fig. 12). Fig. 7, genital capsule, lateral view; Fig. 8, same, posterior view, left paramere removed; Fig. 9 – 11, left paramere, three different aspects; Fig. 12, apical portion of spermatheca. Lettering: ar = apical receptacle of spermatheca; cs = cuplike sclerite; ip = intermediate part of spermatheca; rp = right paramere; sd = spermathecal duct. Scales in mm.