Four new species of Scymnus Kugelann from China (Insecta, Coleoptera, Coccinellidae)

Volume: 18Start Page: 151End Page: 15

Plotina

Key to species of <i>Plotina</i> <p> 1. Elytra with eight large rounded white spots, without any black spot................. <i>octomaculata</i> Wang et Ren, <b>sp. nov.</b></p> <p>- Elytra with four large irregular white spots, with several black spots............................................. 2</p> <p>2. Pronotum with two large rounded white spots............................................................... 3</p> <p>- Pronotum without two large rounded white spots........................................................... 4</p> <p> 3. Pronotum with two black spots. Each elytron with four black spots arranged in 1–2–2 pattern............. <i>muelleri</i> Mader</p> <p> - Pronotum without any black spot. Each elytron with two black spots........... <i>menghaiensis</i> Wang, Ren et Chen, <b>sp. nov.</b></p> <p> 4. Pronotum with a large transverse black spot................................................... <i>versicolor</i> Lewis</p> <p>- Pronotum without any black spot........................................................................ 5</p> <p> 5. Each elytron with four black spots arranged in 1–1–2 pattern...................... <i>daweishanensis</i> Wang et Ren, <b>sp.nov.</b></p> <p>- Each elytron with more than four black spots............................................................... 6</p> <p> 6. Pronotum with two dark spots. Each elytron with seven black spots..................... <i>signatella</i> Wang et Ren, <b>sp. nov.</b></p> <p> - Pronotum without dark spots. Each elytron with six black spots................................. <i>quadrioculata</i> Kovář</p>Published as part of <i>Wang, Xingmin, Ren, Shunxiang & Chen, Xiaosheng, 2011, The genus Plotina Lewis (Coleoptera: Coccinellidae), with descriptions of four new species from China, pp. 57-68 in Zootaxa 2801</i> on page 68, DOI: <a href="http://zenodo.org/record/202329">10.5281/zenodo.202329</a&gt

A new species and first record of the genus Cynegetis Chevrolat (Coleoptera, Coccinellidae, Epilachnini) from China

The first species of the genus Cynegetis Chevrolat is recorded from China. Cynegetis chinensis Wang & Ren, sp. n. is described from the Ningxia Province in North China. A key to the known species of Cynegetis is given. Diagnostic similarities and differences between Cynegetis and Subcoccinella Agassiz & Erichson are discussed and illustrated

Plotina Lewis 1896

Genus <i>Plotina</i> Lewis, 1896 <p> <i>Plotina</i> Lewis, 1896: 35. Type species: <i>Plotina versicolor</i> Lewis, 1896.</p> <p> <i>Plotina</i>: Mader, 1927: 22; 1931: 200; 1934: 294; 1955b: 822; Korschefsky, 1931: 213; Pope, 1962: 632; Miyatake, 1969: 198; Sasaji, 1971: 65; Pang et Mao, 1979: 24; Hoàng, 1982: 106; Miyatake, 1994: 281; Kovář, 1995: 58.</p> <p> <b>Diagnosis.</b> Body broad oval, dorsum moderately convex and glabrous (Figs. 1–3); Antenna relatively long, stout, 10–segmented (Fig. 5). Eyes small and rather coarsely faceted. Maxillary palp large, terminal palpomere elongate, gradually broadening apically (Fig. 7). Lateral margin of elytra not expanded externally. Prosternum T–shaped with arcuate carinae on intercoxal process which is relatively narrow with broad lateral wings (Fig. 4). Elytral epipleuron narrow and not reaching the elytral apex; surface nearly horizontal and flat without a distinct fovea. Abdominal postcoxal lines complete (Fig. 9).</p> <p> <b>Description.</b> Body broad oval, dorsum moderately convex, shining and glabrous (Figs. 1–3). Head comparatively small, frons slightly or not convex. Eyes small with a post–antennal emargination, rather coarsely faceted. Clypeus narrowing anteriorly, and anterior margin straight. Mandible robust, with a subapical tooth just behind apical tooth (Fig. 6). Maxillary palp large, terminal palpomere elongate, gradually broadening apically (Fig. 7). Labial palps normal (Fig. 8). Antennae relatively long, stout, 10–segmented (Fig. 5), with an elongate oval club made up of last four segments, antennomere 1 large and bent, 2 shorter and narrower than1, 3 somewhat triangular, distinctly longer than wide, 4–6 as wide as or wider than long, 6 forming a short support for club, 7–10 gradually dilated, forming a broad club, 10 largest, rounded at apex.</p> <p>Pronotum nearly pentagonal, about 2X wider than long, strongly convex, anterior margin broadly and rather deeply emarginated, the emargination arcuate, moderately concave in the middle; anterior corners strongly prominent; basal marginal line complete but very thin and badly visible before posterior corners. Scutellum small, triangular. Surface of elytra shining, outer margin not expanded externally.</p> <p>Prosternum T–shaped with arcuate carinae on the process which is relatively narrow; with broad lateral wings (Fig. 4). Mesosternum relatively broad, 2X as wide as long, anterior margin subtruncate; metasternum wide with median longitudinal line not distinctly impressed. Elytral epipleuron narrow, reaching elytral apex, surface nearly horizontal and flat without a distinct fovea. Abdomen with 5 visible sterna in both sexes, postcoxal lines complete, strongly and unevenly curved, reaching near posterior margin, outer part of line subparallel to side (Fig. 9). Legs with femora moderately stout, fortibia somewhat broad and constricted at base, meso- and metatibiae rather slen- der, shallowly excavate for reception of tarsi, tarsi 4–segmented; tibial spurs present on meso- and metatibiae (Figs. 11).</p> <p> <b>Distribution.</b> China, Japan, Thailand, Vietnam.</p>Published as part of <i>Wang, Xingmin, Ren, Shunxiang & Chen, Xiaosheng, 2011, The genus Plotina Lewis (Coleoptera: Coccinellidae), with descriptions of four new species from China, pp. 57-68 in Zootaxa 2801</i> on page 58, DOI: <a href="http://zenodo.org/record/202329">10.5281/zenodo.202329</a&gt

Contribution to the knowledge of the subgenus Scymnus (Parapullus) Yang, 1978 (Coleoptera, Coccinellidae), with description of eight new species

Eight new species of the subgenus Scymnus (Parapullus) Yang, 1978 from China are described and illustrated: S. (P.) hastatussp. n., S. (P.) baxianshanensissp. n., S. (P.) laojielingensissp. n., S. (P.) annuliformissp. n., S. (P.) papillatussp. n., S. (P.) dichotomussp. n., S. (P.) shenmuensissp. n. and S. (P.) yanzigouensissp. n. Diagnoses and distributions are provided for each species. An updated key to the Chinese species of the subgenus Parapullus is given. A catalogue to all known species of this subgenus is also presented

A contribution to Asian Afidentula Kapur (Coleoptera, Coccinellidae, Epilachnini)

Two new species of Afidentula, A. dentata sp. n. and A. jinpingensis sp. n. are described from China. Afissa siamensis Dieke is moved to Afidentula comb. n.. All three species are described and illustrated, and a distribution map is given. A key to Asian species of Afidentula is updated. Diagnostic similarities and differences between Afidentula and Afidenta are discussed and illustrated

A contribution to Asian Afidentula Kapur (Coleoptera, Coccinellidae, Epilachnini)

Two new species of Afidentula, A. dentata sp. n. and A. jinpingensis sp. n. are described from China. Afissa siamensis Dieke is moved to Afidentula comb. n.. All three species are described and illustrated, and a distribution map is given. A key to Asian species of Afidentula is updated. Diagnostic similarities and differences between Afidentula and Afidenta are discussed and illustrated

FIGURES 36 – 38 in The genus Plotina Lewis (Coleoptera: Coccinellidae), with descriptions of four new species from China

FIGURES 36 – 38. Plotina octomaculata Wang et Ren, sp. nov. (36 – 38) male genitalia: (36) penis; (37) tegmen, lateral view; (38) tegmen, ventral view. 39 – 44: Plotina menghaiensis Wang, Ren et Chen, sp. nov. (39 – 41) male genitalia: (39) penis; (40) apex of penis; (41) tegmen, lateral view; (42) tegmen, ventral view; (43 – 44) female genitalia: (43) spermatheca; (44) ovipositor. 45 – 49: Plotina versicolor Lewis. (45 – 47) male genitalia: (45) penis; (46) tegmen, lateral view; (47) tegmen, ventral view; (48 – 49) female genitalia: (48) spermatheca; (49) ovipositor. Scale bars: 0.3 mm

The genus Shirozuella Sasaji (Coleoptera, Coccinellidae, Shirozuellini) from the Chinese mainland

The genus Shirozuella Sasaji, 1967 from the Chinese mainland is reviewed. Eight species are recognized, including four new species: S. motuoensis sp. n., S. tibetina sp. n., S. unciforma sp. n., and S. guoyuei sp. n. Male genitalia of S. parenthesis Yu and S. quadrimacularis are described for the first time. All species are described and illustrated. A key and distribution map to the known species from the Chinese mainland are given

Plotina quadrioculata Kovar 1995

<i>Plotina quadrioculata</i> Kovár, 1995 <p>(Figs. 33–35, 60–64)</p> <p> <i>Plotina quadrioculata</i> Kovář, 1995: 58.</p> <p> <b>Diagnosis.</b> This species is easily distinguished from other <i>Plotina</i> spp. by the unique dorsal color pattern and male genitalia (Figs. 33, 60–62).</p> <p> <b>Description.</b> TL: 2.75–2.83mm, TW: 2.00– 2.25mm, TH: 1.08–1.25mm, TL/TW: 1.26–1.38; PL/PW: 0.45– 0.47; EL/EW: 1.09–1.12.</p> <p>Head red or red brown, with eyes silver gray. Pronotum red or yellow brown, without any spots. Scutellum dark brown. Ground color of elytra red to brown, with two large white–yellow spots, each spot surrounded by black spots (Figs. 33–34). Underside yellowish brown or brown.</p> <p>Body medium, broadly oval, moderately convex, shining and glabrous (Figs. 33–35). Head comparatively small, width 0.41X elytral width (HW/EW=2.44); punctures on frons moderately large, separated by 0.3–0.8X their diameter, with short golden setae in punctures; eyes small (Fig. 35), broadly oval, widest interocular distance 0.57X width of head. Pronotum 0.66X elytral width (PW/EW=1: 1.52), pronotal punctures similar to those on head, separated by 0.5–1.5X their diameter. Punctures on elytra slightly larger than those on pronotum, separated by 0.3–1.0X their diameter. Pro- and mesosterna smooth, with several hairs. Punctures on metasternum fine, separated by 2.0–4.0X their diameter, with short setae in punctures.</p> <p>Male genitalia: Penis long, slender, penis capsule with a distinctly outer process and a long inner one, apex simple, pointed (Fig. 60); penis guide in lateral view slender, widest at base, then gradually tapering to apex, apex slightly arcuate, pointed (Fig. 61); parameres slender, sparsely setose at apex and base, slightly longer than penis guide; penis guide in ventral view stout, long oval, apex rounded (Fig. 62).</p> <p>Female genitalia: Coxites elongate, 6.0X as long as wide, tapering to blunt apices, each with long terminal setae (Fig. 64); spermatheca with a large nodulus and a slender cornu, nodulus 2X as thick as cornu (Fig. 63).</p> <p> <b>Specimens examined. China, Yunnan:</b> 1 female, Mengla, Xishuangbanna, 23.viii.2005, Wang XM leg; 1 male, Xiaomengyang, Xishuangbanna, 27.iv.2008, Wang XM leg; 1 male, Wangtianshu, Mengla, Xishuangbanna, 2.v.2008, Wang XM leg; 1 male, Jiluoshan, Xishuangbanna, 3.v.2009, Wang XM leg.</p> <p> <b>Distribution.</b> China (Yunnan) <b>new distribution</b>, Thailand.</p>Published as part of <i>Wang, Xingmin, Ren, Shunxiang & Chen, Xiaosheng, 2011, The genus Plotina Lewis (Coleoptera: Coccinellidae), with descriptions of four new species from China, pp. 57-68 in Zootaxa 2801</i> on pages 65-68, DOI: <a href="http://zenodo.org/record/202329">10.5281/zenodo.202329</a&gt