Sadoletus voluptarius Bergroth, 1918

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 : 276-277

11. Sadoletus voluptarius Bergroth, 1918

( Figs. 18–19 )

Sadoletus voluptarius Bergroth, 1918: 109 (original description); Slater (1964: 777) (catalogue, distribution).

Redescription of type material ( Figs. 18a, b ; 19a, b ). Head black, with tylus pale brown; antenna and labium dark brown. Pronotum black in anterior lobe and blackish brown in posterior lobe, with posterior margin pale yellow. Scutellum black in basal half and blackish brown in apical half; apical half of scutellum with concolourous longitudinal line along meson. Corium pale yellow in basal half and black in remaining part; clavus pale yellow, with longitudinal dark brown stripe along claval commissure; membrane hyaline, with brown spot at middle. Venter almost black. Ventral of head and thorax covered with dense decumbent silvery hairs; acetabula blackish brown; peritreme yellowish. Legs blackish brown except all trochanters, less than basal half of middle and hind femora and tarsomere I. Laterotergites unicoloured.

Structure. Head covered with fine punctures; eyes occupying nearly half area of head in lateral view. Labium reaching mesocoxae. Pronotum with lateral margin of anterior lobe weakly serrate; posterior margin almost straight. Scutellum weakly tumid transversely in basal half, covered with decumbent hairs. Hemelytra exceeding apex of abdomen, claval suture distinctly longer than apical margin of corium; hemelytra fully covered abdominal connexivum.

Abdomen ( Fig. 19c, d ): Anterior margin of tergite I, posterior margin of tergite II and most areas of tergites III–VI covered with dense punctures; tergite VII covered with sparse punctures as in Fig. 19c . Sternites I–V fused together ( Fig. 19d ). Trichobothria on sternite IV almost linear, with middle ones of sternite III slightly behind other two trichobothria.

Male: Inner laterotergites not distinct. Distal margin of tergite VII sinuate. Posterior margins of sternites III–IV straight, V slightly, VI strongly concaved cephalad. Mid length of sternite VI about one-fourth of sternite VII.

Male genitalia ( Fig. 19 e–j): Cuplike sclerite fused with median projection of pygophore; median projection without median longitudinal ridge, apex rounded; anterolateral margin of median projection with outgrowth pointed anteriorly. Paramere with distinctly rounded outer lobe; blade twisted, tip pointed.

Measurements. [Lectotype ♂, another ♂]. Body length 5.20, 4.84; maximum width across hemelytra 1.70, 1.45; head length 0.64, 0.69, head width across eyes 1.33, 1.24; length of antennal segments I–IV respectively missing, 0.34, missing, 0.76, missing, 0.62, missing, 0.80; length of labial segments 0.59, 0.52, 0.67, 0.62,?,?; mesal pronotal length 1.15, 1.02; anterior pronotal lobe length 0.51, 0.47; posterior pronotal lobe length 0.64, 0.56; anterior pronotal width 1.20, 1.04; posterior pronotal width 1.70, 1.50; mesal scutellar length 1.10, 0.92; basal scutellar width 0.97, 0.84; hemelytral length 3.45, 3.07.

Types examined. LECTOTYPE, ♂, Mt. Banahao \ P. I. Baker (pr) \\ Sadoletus voluptarius Bergroth (hw) [Bergroth’s handwriting] \\ Mus. Hels. \ N: o 3536 \\ Mus. Zool. H: fors \ Spec. typ. No (pr) 11286 \ Sadoletus voluptarius Bergr. (hw) \\ Photographed \ 2015 \ Pekka Malinen \\ Http://id.luomus.fi/GL.4290 (MZH); antennae missing; designated here. PARALECTOTYPE, 1♂, Mt. Banahao \ P. I. Baker (NMNH), designated here.

Other Specimens Examined. CHINA: 1♂, Yunnan, Menghai, Chengguan \ host: Ficus religiosa L. \ [19]79. X. 6, Zou leg. (hw) \ Nankai University (NKUM); PHILIPPINES: 2♂♂, Dapitan \ Mindanao \ Baker ( NMNH) .

Distribution. Philippines ( Bergroth 1918), and in this study newly recorded from China (Yunnan).

Figures

FIGURE 18. Lectotype of Sadoletus voluptarius Bergroth, 1918 and its labels. a, dorsal view; b, ventral view; c, pygophore, posterodorsal view; d, labels (Photographed by Pekka Malinen, MZH).

FIGURE 19. Sadoletus voluptarius Bergroth, 1918. a, male habitus, dorsal view; b, same, ventral view; c, male abdominal dorsum, dorsal view; d, male abdominal venter, ventral view; e, pygophore, posterodorsal view; f, pygophore, dorsal view; g–j, left paramere, four different aspects. Abbreviations: cp, cuplike sclerite; mp, median projection; og, outgrowth.