Dilatitibialis tiffany Canepari and Gordon, 2013

Canepari, Claudio, Gordon, Robert D. & Hanley, Guy A., 2013, South American Coccinellidae (Coleoptera), Part XV: systematic revision of Dilatitibialis Duverger (Coccidulinae; Hyperaspidini), Insecta Mundi 2013 (312), pp. 1-91 : 41-42

32. Dilatitibialis tiffany Canepari and Gordon , new species

Description. Male holotype. Length 2.8 mm, width 2.3 mm; body rounded, slightly elongate, convex. Dorsal surface smooth, shiny except pronotum feebly alutaceous, shiny. Color yellow except pronotum with large, dark brown, irregularly triangular mediobasal spot on each side of middle, spots narrowly connected at basal pronotal margin; elytron with 3 large, dark brown spots, humeral spot irregularly rounded, discal spot on sutural margin irregularly elongate, connected to mate on opposite elytron, median spot on apical declivity large, irregularly rectangular ( Fig. 172 ); ventral surface with head, prosternum, meso- and metaventrite black; abdomen with ventrites 1-4 dark brown medially, yellowish brown in lateral 1/4, and ventrites 5-6 yellow. Head punctures small, separated by a diameter, each puncture about as large as an eye facet; pronotal punctures slightly larger than head punctures, separated by 1 to 2 times a diameter; elytral punctures larger than those on pronotum, separated by 1 to 3 times a diameter; metaventral punctures slightly larger than those on elytron medially, separated by less than a diameter, coarser and separated by a diameter or less toward lateral margin. Clypeus weakly emarginate apically, lateral angle rounded, surface with sparse, long pubescence. Eye canthus about 5 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal and anterior angles abrupt, lateral margin rounded, basal margin without trace of bordering line. Epipleuron narrow, grooved, not descending externally, deeply emarginate for reception of femoral apices. Protibia narrowly flanged, flange narrower than remainder of protibia, outer margin curved, smooth, sponda weakly extended beyond protibial flange ( Fig. 173 ). Carinae on prosternal process short, narrowly separated at apex, convergent toward base, joined at middle of prosternum, without carina extended to basal margin of prosternum. Metaventrite with sparse setal tuft. Basal abdominal ventrite with sparse setal tuft. Abdomen with primary pores laterally between ventrites 4-5 small, extended under apical 1/4 of 4th ventrite; postcoxal line on basal abdominal ventrite slightly flattened along posterior ventrite margin, extended forward, ventrite with sparse, short pubescence and large, dense punctures; ventrites 2-4 pubescent throughout, punctures large; ventrite 5 coarsely, densely punctured in basal 2/3, apical 1/3 depressed, feebly depressed by primary pore laterally, without tubercle on each side of middle, apical margin broadly, weakly emarginate; ventrite 6 short, narrow, depressed medially, apical margin broadly emarginate, sparsely pubescent on each side of median depression, lateral angle abruptly rounded, surface densely punctured. Apical tergite with apex weakly rounded. Genitalia with basal lobe short, wide, 3/5 as long as paramere, asymmetrical, sides straight, apex rounded; paramere wide, curved, Psc, apex with small, ventral projection ( Fig. 174, 175 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm long, slender, curved, apex rounded, outer arm as long as inner arm, with accessory piece, basal border broadly, deeply emarginate. ( Fig. 176, 177 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; (Argentina), Arg., Misiones, Piñalito, 1-1975, M. Viana, ex Coleccion M. Viana Arg. 035068, Coleccion J.E. Barriga, CHILE 076773. ( JEBC).

Remarks. In addition to a distinctive elytral color pattern, D. tiffany may be recognized by the short prosternal carina extended only to midpoint of prosternum, not connected to the prosternal base by a carina.

Figures

Figures 167-183. 167-171) Dilatitibialis edna. 167) Habitus. 168) Phallobase ventral. 169) phallobase lateral. 170) Sipho. 171) Enlarged siphonal apex. 172-177) Dilatitibialis tiffany. 172) Habitus. 173) protibia. 174) Phallobase ventral. 175) Phallobase lateral. 176) Enlarged siphonal apex. 177) Sipho. 178-183) Dilatitibialis carmen. 178) Habitus. 179) Phallobase ventral. 180) Phallobase lateral. 181) Enlarged siphonal apex. 182) Sipho. 183) Female genitalia.