Dilatitibialis edna 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 : 40-41

31. Dilatitibialis edna Canepari and Gordon , new species

Description. Male holotype. Length 2.5 mm, width 1.7 mm; body elongate, convex. Dorsal surface smooth, shiny except pronotum feebly alutaceous, shiny. Color black except head yellow, pronotum with black, basomedian macula extended 2/3 distance to anterior margin, apex of macula weakly, narrowly emarginate with yellow; elytron with 4 large, yellow spots, humeral spot elongate along lateral margin, narrowly connected to mediolateral spot, scutellar spot irregularly oval, discal spot with inner margin straight, outer margin curved, apical spot triangularly oval ( Fig. 167 ); ventral surface with antenna, mouthparts, prothoracic hypomeron, and legs yellow; abdomen yellowish brown medially, lateral 1/4 and ventrites 5-6 brownish yellow. Head punctures small, separated by a diameter or less, each puncture about as large as an eye facet; pronotal punctures slightly larger than head punctures, separated by 1-3 times a diameter; elytral punctures larger than those on pronotum, separated by 1 to 3 times a diameter; metaventral punctures larger than those on elytron medially, separated by less than a diameter, coarser and 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 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 weakly extended beyond protibial flange. Carinae on prosternal process narrowly separated at apex, convergent toward base, joined at basal 1/4 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 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 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, 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 densely punctured. Apical tergite with apex weakly rounded. Genitalia with basal lobe short, wide, 2/3 as long as paramere, asymmetrical, sides weakly rounded, apex rounded; paramere wide, curved, Psc, apex with small, ventral projection ( Fig. 168, 169 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm long, wide, curved, apex rounded, outer arm about as long as inner arm, with accessory piece, basal border broadly, deeply emarginate ( Fig. 170, 171 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; Brasil, Faz. Pau d/Alho, Itú, 9-IX-961, Col.: U. Martins. ( MZSP).

Other specimen. 1. Argentina, Misiones, Dep. Concep., Sta. Maria, XI.1958, M. J. Viana, ex Coleccion M. Viana Arg. 033165, Coleccion J.E. Barriga, CHILE 076922. ( JEBC).

Remarks. Dilatitibialis connie , D. florence , and D. edna have similar male genitalia as well as overall size and dorsal color patterns. Differences are somewhat minor, but they are here considered valid species based on differences in size of eye canthus, differing ventral punctation, and dorsal color patterns. See remarks under D. connie .

One specimen from Misiones, Argentina, matches the holotype of D. edna in both dorsal color pattern and male genitalia, and is recorded as “Other specimen.”

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.