Scymnus (Parapullus) Yang
Creators: name: Yu, Guoyue
name: Montgomery, Michael E.
name: Yao, Defu
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Scymnus

description: Subgenus <i>Parapullus</i> Yang <i>Scymnus</i> (<i>Parapullus</i>) was established by Yang (1978) for a Taiwanese species: <i>S. secula</i> Yang, and two additional Palearctic species have been assigned to this subgenus (Pang and Yu 1993). The new species described here resembles <i>S.</i> (<i>Parapullus</i>) <i>alishanensis</i> Pang and Yu, but is separated from it by the median piece of tegmen narrowing gradually to a pointed tip in ventral view, and by the finely punctate first abdominal sternite. The new species also resembles the European <i>S.</i> (<i>Parapullus</i>) <i>abietis</i> (Paykull), but in the latter the lateral lobes of the tegmen are narrower and slightly shorter than the median piece of the tegmen. <i>Scymnus</i> (<i>Parapullus</i>) <i>tsugae</i> Yu and Yao, <b>new species</b> (Fig. 8) <b>Description.</b> Male. Length 2.40 mm, width 1.35 mm. Form oval, moderately convex dorsum moderately convex. Color brown, except head and legs yellowish brown, elytra reddish brown. Interocular distance less than 1/2 head width. Innerocular margins arcuate. Frons weakly convex, finely punctate. Anterior margin of clypeus very weakly incurvate. Antenna 10­segmented, proportions as illustrated (Fig. 8f). Maxillary palpus terminal segment widest at middle; inner, shorter lateral side slightly shorter than basal thickness, distal side strongly oblique. Pronotum with punctation similar to head. Elytral punctation distinctly coarser, pubescence arranged in weak S­form. Prosternal carinae moderately separated, slightly convergent anteriorly. Postcoxal line of first abdominal sternite incomplete, reaching 6/7 sternite length, enclosed area finely punctate, smooth near line. Hind margin of fifth abdominal sternite nearly truncate; apex of sixth slightly incurvate. Genitalia: Sipho (Fig. 8a) moderately stout with well­developed siphonal processes; apex of sipho simple, without distinct appendix. Tegmen (Fig. 8b, c) moderately stout; median piece slightly narrowed at base, converging gradually apically to a pointed tip in ventral aspect. Lateral lobes shorter than median piece, about 2/3 length of median piece, each lateral lobe apex with two groups of nearly uniform setae oriented in different directions (Fig. 8b, e). <b>Distribution.</b> China (Yunnan). <b>Type Series.</b> Holotype: (Ƌ), Yunnan: Lijiang: (26.8 N, 100.2 E), IV­1996 (BAAF). Paratype: (1 Ƌ, same data as holotype) (CAF). <b>Etymology.</b> The name refers to the plant on which it was found, <i>Tsuga</i> spp.
description: Published as part of <i>Yu, Guoyue, Montgomery, Michael E. &amp; Yao, Defu, 2000, Lady Beetles (Coleoptera: Coccinellidae) From Chinese Hemlocks Infested With The Hemlock Woolly Adelgid, Adelges Tsugae Annand (Homoptera: Adelgidae), pp. 154-199 in The Coleopterists Bulletin 54 (2)</i> on pages 167-169, DOI: 10.1649/0010-065X(2000)054[0154:LBCCFC]2.0.CO;2
description: {"references": ["Yang, C. T. 1978. A new subgenus and species of Coccinellidae. Bulletin of the Society of Entomology, Taichung 13: 27 - 28.", "Yu, G., H. Pang, and X. Pang. 1993. Coccinellidae collected from Chebaling National Nature Reserve [pp. 467 - 511]. In: Collected papers for investigation in National Chebaling Nature Reserve (Y. Xu et al., editors). Guangdong Science and Technolgy Press, Guangzhou. [in Chinese with English summary]."]}