Sadoletus validus Distant, 1903

Gao, Cuiqing & Malipatil, M. B., 2019, Revision of the genus Sadoletus Distant, with description of new species from China and Australia (Hemiptera: Heteroptera: Heterogastridae), Zootaxa 4613 (2), pp. 251-289 : 254-257

1. Sadoletus validus Distant, 1903

( Figs. 1–4 )

Sadoletus validus Distant, 1903: 37 (original description); Slater (1964: 777) (catalogue); Ban (2018: 56) (in key).

Sadoletus subpellucidus Ban, 2018: 60 . New synonym.

Redescription. Following are additions to the original description ( Distant 1903), and description of S. subpellucidus given by Ban (2018).

Abdomen ( Fig. 3 a–d): Median area of tergites I–VI with regular dense punctures; punctures on sternite VII with setae. Sternites I–V fused. Trichobothria on sternites III and IV almost linear.

Male ( Fig. 3a, b ): Inner laterotergites not distinct. Distal margin of tergite VII straight. Posterior margins of sternites III–IV straight, V slightly, VI strongly concaved cephalad. Mid length of sternite VI about one third of sternite VII. Pygophore: median projection with median longitudinal ridge; anterolateral margin of median projection with horn-like outgrowth ( Figs. 1e ; 3e ). Paramere and phallotheca shown in Figs. 1 f–i; 3f–j.

Female ( Fig. 3c, d ): Inner laterotergites III–VI present. Anterior margin of tergite VIII with anterolateral apodemes (as Fig. 9k ). Median line of sternites I–V weakly sclerotized. Middle margins of the two halves of sternite VII curved and slightly overlapping ( Fig. 4f ), but looks separate when dissected ( Fig. 3d ). Ovipositor with first and second gonapophysis narrow and elongate. Spermatheca weakly sclerotized; bulb gourd-like, without any rim or flange; duct short, about three times length of bulb.

Measurements. [Paralectotype ♂, another ♂ / Lectotype ♀, another ♀]. Body length 4.83, 4.57 / 5.01, 5.25; maximum width across hemelytra 1.75, 1.53 / 1.75, 1.80; head length 0.76, 0.65 / 0.55, 0.71, head width across eyes 1.26, 1.15 / 1.31, 1.31; length of antennal segments I–IV respectively 0.32, 0.30 / 0.34, 0.39; 0.71, 0.67 / 0.67, 0.71; 0.55, 0.59 / 0.58, 0.62; 0.73, 0.76 / 0.83, 0.83; length of labial segments 0.55, 0.59 / 0.48, 0.69; 0.59, 0.64 / 0.55, 0.73; 0.50, 0.50 / 0.37, 0.58; 0.43, 0.46 / 0.30, 0.34; mesal pronotal length 1.08, 1.04 / 1.12, 1.20; anterior pronotal lobe length 0.46, 0.44 / 0.43, 0.46; posterior pronotal lobe length 0.58, 0.53 / 0.69, 0.73; anterior pronotal width 1.08, 0.98 / 1.15, 1.17; posterior pronotal width 1.56, 1.35 / 1.72, 1.68; mesal scutellar length 0.92, 0.81 / 1.05, 0.99; basal scutellar width 0.83, 0.77 / 1.03, 0.97; hemelytral length 3.22, 2.92 / 3.58, 3.33.

Types examined. LECTOTYPE, female, Peradeniya \ Ceylon, 12-1901 (hw) \\ Distant Coll. \ 1911-383 \\ Sadoletus \ validus \ Dist. (hw) \\ type [label with red circle] \\ SYN- \ TYPE [label with blue circle] \\ BMNH(E) \ 1705350(NHM), designated here ( Fig. 1a, b ). PARALECTOTYPE, male, Mergui (hw) \\ Distant Coll. \ 1911-383 \\ SYN- \ TYPE [label with blue circle] \\ BMNH(E) \ 1705351(NHM), left antennal segment IV missing; right mid and left hind legs missing, genitalia dissected, designated here ( Fig. 1c, d ).

Other Specimens Examined. CHINA: 3♂♂ 2♀♀, Hainan, Sanya \ 2011-VII-22 \ at light, Kekong Jiao leg. (pr) (NKUM); 5♂♂ 4♀♀, same data \ Yiran Mu leg. (pr) ( NKUM) ; 1♂ 1♀, same data ( MV) ; 1♂, Hainan, Sanya, Luhuitou village \ 2011-VII-23 \ Yiran Mu leg. (pr) ( NKUM) ; 1♂ 2♀♀, Yunnan, Yuanjiang county , suburb \ 2006- VII-25 \ Xueqin Shi leg. (pr) ( NKUM) ; 1♂ 4♀♀, Yunnan, Damenglong (hw) \ bark, Zou leg. (hw) \ 19(pr)79. X. 1 (hw) \ Nankai University (pr) ( NKUM) ; 2♂♂, Yunnan, Yingjiang \ Ficus sp. [host], Zou Huanguang leg. \ 19(pr)79. 9.5(hw) \ Nankai University (pr) ( NKUM) ; 1♂, Yunnan, Longling, Mengnuo \ Mensai Mountain , 2012-X- 8 \ Xue Huaijun leg. at light ( NKUM) ; 1♀, Guangxi, Napo, Baihe \ 440m \ 1998. IV. 8, Chunsheng Wu leg. \ IZAS (pr) ; 1♂, Taiwan, Gaoxiong, Shoushan Park \ 2013-V-31 \ Zhonghua Fan \ Nankai University (pr) ( NKUM) ; 1♂, Taiwan, Pingdong County, Mudan township \ Shouka \ 2013-VI-15 at light \ Fan Zhonghua leg. \ Nankai University (pr) ( NKUM) . SRI LANKA (CEYLON): 1♀, Poll. Dist. \ Pimburettava, 13 \ mi. S Mannampitiya \ 9-12-XI-70, 1850 \ O. S. Flint, Jr. \\ Sadoletus validus \ det. J. A. Slater, 1979 ( NMNH) .

Distribution. Sri Lanka ( Ceylon), India, Laos ( Distant, 1903; Slater, 1964; Ban, 2018), in this study newly recorded from China (Yunnan, Hainan, Guangxi, Taiwan).

Remarks. The adequate original description and illustrations by Ban (2018) allow doubtless recognition of S. subpellucidus . A careful study of the type specimens of S. validus , dissection of the genitalia of the male paralectotype, and comparison with the illustrations of S. subpellucidus showed they totally matched with each other, hence this synonymy established in the present contribution. S. validus is characterized by a pygophore with median projection with median longitudinal ridge, and anterolateral margin of median projection with horn-like outgrowth.

Figures

FIGURE 1. Types of Sadoletus validus Distant, 1903 and their labels. a, lectotype, female, dorsal view; b, same, lateral view; c, paralectotype, male, dorsal view; d, same, lateral view; e, paralectotype, pygophore, posterodorsal view; f–i, paralectotype, left paramere, four different aspects; j, lectotype, labels; k, paralectotype, labels. Abbreviations: mp, median projection.

FIGURE 2. Sadoletus validus Distant, 1903. a, male, dorsal view; b, same, ventral view; c, female, dorsal view; d, same, ventral view.

FIGURE 3. Sadoletus validus Distant, 1903. a, male abdominal dorsum, dorsal view; b, male abdominal venter, ventral view; c, female abdominal dorsum, dorsal view; d, female abdominal venter, ventral view; e, pygophore, posterodorsal view; f, phallotheca, lateral view; g–j, left paramere, four different aspects. Abbreviations: I–VII, abdominal segments; ho, horn-like outgrowth; sgs, scent gland scar.

FIGURE 4. Sadoletus validus Distant, 1903. a, head, ventral view; b, meso- and metapleura; c, thoracic scent gland; d, sternite V; e, anterior trichobothria on sternite V; f, apex of abdomen. Abbreviations: VII, seventh sternite; sg, scent gland; sp, spiracle; tr, trichobothria.

FIGURE 9. Sadoletus planus sp. nov. paratypes. a, male abdominal dorsum, dorsal view; b, male abdominal venter, ventral view; c, female abdominal dorsum, dorsal view; d, female abdominal venter, ventral view; e, pygophore, posterodorsal view; f, phallotheca, lateral view; g–j, left paramere, four different aspects; k, female, tergite VIII, dorsal view; l, ovipositor, inner view. Abbreviations: ap, apodeme; sm, spermatheca.