Dilatitibialis lois 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 : 11-12

2. Dilatitibialis lois Canepari and Gordon , new species

Description. Male holotype. Length 2.8 mm, width 2.3 mm; body rounded, convex. Dorsal surface mostly shiny, lacking alutaceous sculpture except pronotum with weakly alutaceous background. Color black except head yellow; pronotum with lateral 1/3 and apical 1/6 yellow; elytron entirely black ( Fig. 8 ); ventral surface with mouthparts, antenna, legs yellow except metafemur black with yellow apex; abdomen mostly black except apices of ventrites 5-6 yellow. Head punctures small, separated by about a diameter, slightly larger than an eye facet; pronotal punctures larger than head punctures, separated by a diameter or less; elytral punctures larger than on pronotum, separated by 1 to 2 times a diameter; metaventral punctures smaller than on pronotum medially, dense, becoming large, nearly contiguous toward lateral margin. Clypeus apically emarginate, 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 broadly rounded, basal margin without bordering line. Epipleuron narrow, grooved, deeply emarginate for reception of femoral apices. Protibia weakly flanged, flange about 1/2 width of remainder of protibia, outer margin rounded, smooth, sponda distinct, extended slightly beyond protibial flange. Carinae on prosternal process widely separated at apex, convergent toward base, joined at basal 1/4 with single carina extended to basal margin of prosternum. Metaventrite with large, dense setal tuft. Basal abdominal ventrite with dense, long setal tuft. Abdomen with primary pores laterally between ventrites 4-5 small, slightly indenting apical margin of 4th ventrite; postcoxal line on basal abdominal ventrite rounded, extended to apical margin of ventrite at middle, rounded along margin, then broadly forward, ventrite with sparse, long pubescence and sparse punctures medially; ventrites 2-4 densely pubescent throughout, punctures small, sparse medially, becoming dense toward lateral margin; 5th ventrite depressed medially in apical 1/2, dense patch of long pubescence on each side of median depression, without tubercle on each side of middle, apical border broadly emarginate, surface densely punctate; 6th ventrite short, narrow, depressed medially, apical margin broadly emarginate, sparsely pubescent on each side of median depression, surface densely punctured. Apical tergite coarsely, densely punctured, pubescent, posterolateral angle abrupt. Genitalia with basal lobe shorter than paramere, slightly asymmetrical, narrowed from base to truncate apex; paramere Unm, straight, apex rounded ( Fig. 9, 10 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm short, narrow, apically truncate, outer arm wider, longer than inner arm, with accessory piece, basal border broadly emarginate ( Fig. 11, 12 ).

Female. Unknown.

Variation. Length 2.8 to 3.5 mm, width 2.3 to 2.6 mm.

Type material. Holotype male; Brazil, Corcovado , Rio de Janeiro, G. E. Bryant, 13.V.1912, G. Bryant Coll. 1919-147, Cleothera flavocalceata Muls. ( BMNH) . Paratypes: 2, 1, Brazil, Ilha dos Buzios , S. Paulo - Brasil, 16.X.4.XI.963, Exp. Dep. Zool. ( DZUP) ; 1, Brazil, Santa Teresa-ES Brasil - 15/XI/67, C. and T. Elias leg, Dpto Zool UF - Parana ( DZUP) .

Remarks. Dilatitibialis lois is distinctive within the genus because of its nearly all black dorsal color, mostly black metafemur, and form of male genitalia.

Figures

Figures 1-16. 1-7) Dilatitibialis semicincta. 1) Habitus. 2) Protibia. 3) Phallobase ventral. 4) Phallobase lateral. 5) Enlarged siphonal apex. 6) Sipho. 7) Female genitalia. 8-12) Dilatitibialis lois. 8) habitus. 9) Phallobase ventral. 10) Phallobase lateral. 11) Enlarged siphonal apex. 12) Sipho. 13-16) Dilatitibialis tina. 13) Habitus. 14) Phallobase ventral. 15) Phallobase lateral. 16) Female genitalia.