Plagiometriona multisignata ( Boheman, 1855 )

Flinte, Vivian, Viana, Jéssica Herzog, Macedo, Margarete Valverde, Windsor, Donald & Sekerka, Lukáš, 2016, Revalidation and redescription of three distinct species synonymized as Plagiometriona sahlbergi (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae 56 (2), pp. 743-754 : 746-749

Plagiometriona multisignata ( Boheman, 1855) stat. restit.

( Fig. 1 )

Coptocycla multisignata Boheman, 1855: 379 (original description).

Plagiometriona sahlbergi [misidentification]: FLINTE et al. (2008): 205 (biology and host plant record); FLINTE et al. (2009): 596 (faunistics); FLINTE et al. (2010): 901 (phylogeny); FLINTE et al. (2011): 18 (altitudinal and temporal distribution).

Type locality. ‘Brasilia’.

Type material examined. LECTOTYPE (designated by BOROWIEC 1999): J, pinned, ‘29582 [white and printed label] || Brasilia | Hecht. [green and handwritten label] || multisignata Dej [white label handwritten by Boheman] || LEC- TOTYPE | des. L. Borowiec [red and printed label]’ (ZMHB).

Additional material examined. BRAZIL: RIO DE JANEIRO: Teresópolis, Parque Nacional da Serra dos Órgãos, trilha da Pedra do Sino, 1.ix.2005, 1 spec., 13.–14.x.2005, 1 spec., viii.2006, 3 spec., 25.viii.2006, 1 spec. (Adhesive panel, 1880 m alt.), V. Flinte leg. Additional 38 specimens reared in laboratory conditions, all deposited at CLEI.

Description. Measurements: BL: 5.95–6.28 mm, BW: 5.25–5.40 mm, PL: 1.73–1.90 mm, PW: 3.51–3.76 mm, BR: 1.16, PR: 2.00. Body slightly longer than wide.

Living and fresh specimens ( Fig. 1A ): Pronotum with translucent yellow explanate margin, greenish yellow stripe and large black semicircular discal spot with two yellow shiny subtriangular to circular spots near scutellum. Scutellum black. Elytra with translucent yellow explanate margins, greenish yellow stripe and wide black central spot with three yellow and four to five red shiny spots. Greenish yellow strip between explanate margins and black central spot of elytra, from base to apex, at base from 9 th to last row of punctures and broader apically. Wide black central spot, covering most of elytra from base and internal margins to 9 th row of punctures, with three yellow and five red shiny spots: one wide yellow spot at basal margin from 2 nd to 4 th row of punctures close to anterolateral margins of scutellum, one small yellow spot with comma form between internal margin of elytra and 1 st row of punctures, one red spot at basal margin from 4 th row of punctures to humerus, two red spots at subbasal region with almost the same size from the middle of 1 st interstitial to 2 nd row of punctures and 3 rd to 5 th row of punctures, one yellow spot from 1 st to 4 th row of punctures at mid region and submedian region with two red spots from 5 th to 6 th row of punctures and from 1 st to 5 th row of punctures, sometimes last two spots connected. Underside with translucent yellow color and remaining body with greenish yellow color, except eyes, last antennomere and claws black. Dead and dried specimens change translucent, greenish, shiny yellow color to opaque yellow and shiny red becomes opaque light orange ( Figs 1B‒C ).

Male genitalia. Aedeagus slim, truncated on apex and lateral margins slightly concave. Apex in lateral profile bent ventrally, median lobe straight at basal ¾ and apical ¼ curved dorsally ( Figs 1E‒F ).

Female genitalia. Spermathecal capsule C-shaped, slightly expanded basally ( Fig. 1G ).

Distribution. Brazil (? Espírito Santo, Rio de Janeiro)

Figures

Fig. 1. Plagiometriona multisignata (Boheman, 1855). A – live specimen dorsal; B – dried specimen dorsal; C – dried specimen ventral; D – head, antennae, prosternum and fore legs; E – aedeagus dorsal; F – aedeagus lateral; G – spermatheca. Scales: B–D – 1 mm; E–F – 0.5 mm; G – 0.1 mm.