Ogdoecosta decemstillata ( Boheman 1856 )

López-Pérez, Sara, Zaragoza-Caballero, Santiago & Chaboo, Caroline S., 2016, Revision of Ogdoecosta Spaeth 1909 with description of Ogdoecosta paraflavomaculata López-Pérez, sp. nov. (Coleoptera: Chrysomelidae: Cassidinae: Mesomphaliini), Zootaxa 4179 (3), pp. 410-440 : 421-422

Ogdoecosta decemstillata ( Boheman 1856)

( Figs 7 A–C)

Chelymorpha decemstillata Boheman 1856:82

Male. Length 10.8–11.6 mm, width 7.3–8.3 mm (n=5). Black, glabrous, shining.

HEAD. Surface black, rugose, frons coarsely punctate. Genal surface pubescent, partly visible. Interocular width 2 times diameter of eye. Antennae long, extending beyond pronotal base; antennomere III longer than IV; antennomere I scarcely shorter than XI. Clypeus sub-trapezoidal in shape, 1.5 times wider than long; surface pubescent and with sparse coarse punctures. Labrum 2–3 times wider than long; surface smooth with long seta at lateral margin.

THORAX. Pronotum 2 times wider than long, surface pubescent without spots, black; anterior margin emarginated, margination U-shaped; base bisinuous; hind angles sharp and produced behind with few and scattered punctures; explanate margin pubescent with coarse punctures, anterolateral edge red; pronotal disc with shallow longitudinal groove. Prosternum wrinkled, pubescent. Scutellum triangular; surface smooth, black. Elytral surface with short pubescence, black, each elytron with five orange spots of different sizes; medial spot large, outer margin with three smaller spots, sutural margin with one spot; punctures deeply impressed, scattered over entire surface; humeri rounded, impunctate. Prosternal process pubescent, with deep groove, apex rounded. Mesosternal process deeply notched.

ABDOMEN. Ventrites surface smooth, black, with rough sides. Aedeagus length 2 mm, apex acute ( Fig. 19 C).

Female. Similar to male. Length 12.7 mm, width 8.5 mm (n=3). Interocular width 2 times diameter of eyes. Clypeus 1.5–2 times wider than long. Labrum 2–3 times wider than long. Pronotum 2 times wider than long. Spermatheca well sclerotized ( Fig. 19 C), 2 times longer than wide; apex rounded; velum present; spermathecal duct weakly coiled.

Comparative note. Ogdoecosta decemstillata is distinguished from O. guttifera by the lack of spots on the pronotal disc, bigger spots on the elytra, its prosternal process with a deep groove, elytra with punctures deeply impressed, and velum present in the spermathca.

Host plant. Unknown.

Known distribution. México: Estado de México, Nanchititla; Veracruz ( Borowiec & Świętojańska 2016).

Type material examined. Holotype ( ZMHB) ( Figs 7 A–C). México, No locality.

Additional material examined. 12 specimens with the following localities:

Jalisco *: C. Castillo, Pto. De los Mazos , camino a la antena, 15.XI.1994, N. Amezcua ( CUCBA, 1 male) ; Puerto de Los Mazos , alt. 1600 m, 15.XI.1994, E. Martínez ( CUCBA, 1 female) ; Puerto de Los Mazos , 15.XI.1994, M. Moreno ( CUCBA, 1 male) . Guerrero *: Subestación Corona, Taxco de Alarcón , 18° 41' 19.1'' N, 99° 48' 21.9'' W, alt. 2500 m, 1.X.2011, G. Rodríguez ( CNIN, 1 male) . Oaxaca *: Concepción Carrizal Cópala 2Km. Desviación Juxtlahuaca, 15.VII.2004, L. Cervantes, A. Delgado, S. Gómez & C. Mayorga ( CNIN, 1 male, 1 female) . Veracruz: Cerro de Plumas, Hoege ( BMNH, 2 males, 1 female, 3).

Figures

FIGURE 7. Ogdoecosta decemstillata. A, B, C, holotype. A, habitus in dorsal view; B, habitus in ventral view; C, frontal view.

FIGURE 19. Genitalia of male (left) and female (right). A, Ogdoecosta biannularis; B, Ogdoecosta catenulata; C, Ogdoecosta decemstillata; D, Ogdoecosta epilachnoides; E, Ogdoecosta fasciata.