Dilatitibialis peggy 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 : 31-32

21. Dilatitibialis peggy Canepari and Gordon , new species

Description. Male holotype. Length 3.0 mm, width 2.5 mm; body rounded, slightly elongate, convex. Dorsal surface with head alutaceous, dull, pronotum weakly alutaceous, somewhat shiny, elytron lacking alutaceous sculpture, shiny. Color light brown except pronotum with large, yellow rectangular anterolateral angle, apex with median 1/4 yellow with deep, yellow emargination of median dark area; elytron with 5 large yellow spots arranged in rows of 2, plus an apical spot, mediolateral spot slightly projected inward, apical spot irregularly triangular ( Fig. 113 ); ventral surface with head, prosternum, meso- and metaventrites black to dark brown, remainder of surface yellow; abdomen yellowish brown. Head punctures small, separated by a diameter or less, each puncture as large as an eye facet; pronotal punctures slightly larger than head punctures, separated by a diameter or less; elytral punctures about as large as on pronotum, separated by 1 to 2 times a diameter; metaventral punctures larger than on elytron, separated by a diameter or less medially, coarser, separated by less than a diameter toward lateral margin. Clypeus weakly emarginate apically, lateral angle rounded, surface with sparse, long pubescence. Eye canthus about 6 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal and anterior angles abrupt, lateral margin slightly rounded, basal margin without trace of bordering line. Epipleuron narrow, grooved, weakly descending externally, deeply emarginate for reception of femoral apices. Protibia widely flanged, flange wider than remainder of protibia, outer margin curved, smooth, sponda distinctly extended beyond protibial flange. Carinae on prosternal process narrowly separated at apex, convergent toward base, joined slightly anterior to midpoint with single carina extended to basal margin of prosternum. Metaventrite without setal tuft. Basal abdominal ventrite without setal tuft. Abdomen with primary pores laterally between ventrites 4-5 large, extended under apical 1/3 of 4th ventrite; postcoxal line on basal abdominal ventrite flattened along posterior ventrite margin, extended forward, ventrite with sparse, long pubescence and large, dense punctures medially; ventrites 2-4 pubescent throughout, punctures large medially, small, dense, becoming denser toward lateral margin; 5th ventrite coarsely, densely punctured in basal 2/3, apical 1/3 depressed, densely, finely punctured, feebly depressed by primary pore laterally, without tubercle on each side of middle, apical margin broadly, weakly emarginate; 6th ventrite short, narrow, depressed medially, apical margin broadly emarginate, sparsely pubescent on each side of median depression, lateral angle abruptly rounded, surface feebly punctured. Apical tergite finely, densely punctured, pubescent, apex truncate. Genitalia with basal lobe slightly longer than paramere, asymmetrical, sides weakly convergent from base to apex, apex feebly rounded; paramere wide, Psc, apex with small, ventral projection, dorsal margin rounded ( Fig. 114, 115 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm long, slender, curved, apex rounded, outer arm wider and about as long as inner arm, with accessory piece, basal border broadly, deeply emarginate ( Fig. 116, 117 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; Brazil, Espr. Santo (Espiritu Santo), Korschefsky Collection 1952. ( USNM).

Remarks. As usual in this group of species having a dark dorsal surface with 5 yellow spots, male genitalia are the best criteria for species identification. Dilatitibialis peggy is no exception with the long, slightly tapered basal lobe. This species is also distinguished from D. robin by the larger size, and from D. lillian by the pronotal color pattern having a basal dark area strongly indented apically by a yellow emargination.

Figures

Figures 102-117. 102-106) Dilatitibialis emily. 102) Habitus. 103) Phallobase ventral. 104) Phallobase lateral. 105) Sipho. 106) Enlarged siphonal apex. 107-112) Dilatitibialis robin. 107) Habitus. 108) Phallobase lateral (right side). 109) Phallobase ventral. 110) Phallobase lateral (left side). 111) Enlarged siphonal apex. 112) Sipho. 113- 117) Dilatitibialis peggy. 113) Habitus. 114) Phallobase ventral. 115) Phallobase lateral. 116) Sipho. 117) Enlarged siphonal apex.