Dilatitibialis diana 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 : 22-23

12. Dilatitibialis diana Canepari and Gordon , new species

Description. Male holotype. Length 3.0 mm, width 2.3 mm; body rounded, slightly elongate, convex. Dorsal surface mostly shiny, lacking alutaceous sculpture except pronotum slightly alutaceous, shiny. Color black except pronotum with anterior 1/6 and lateral 1/5 yellow; elytron with 3 yellow spots, 1 irregularly triangular spot on anterolateral angle outside of humerus, 1 obliquely oval, sutural spot near scutellum, 1 transversely oval spot on apical declivity near apical margin ( Fig. 62 ); ventral surface with head, prosternum, meso- and metaventrites black; abdomen dark brown, slightly paler near lateral margin. Head punctures small, separated by about a diameter, 2-3 times larger than an eye facet; pronotal punctures slightly larger than head punctures, separated less than to twice a diameter; elytral punctures slightly larger than on pronotum, separated by less than to 3 times a diameter; metaventral punctures larger than on abdomen medially, separated by less than a diameter, much coarser and nearly contiguous 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, not descending externally, deeply emarginate for reception of femoral apices. Protibia broadly flanged, flange as wide as remainder of protibia, outer margin rounded, smooth, sponda distinctly extended beyond protibial flange. Carinae on prosternal process widely separated at apex, convergent toward base, joined at basal 1/6 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 1/2 of 4th ventrite; postcoxal line on basal abdominal ventrite slightly flattened along posterior margin of ventrite, ventrite with sparse, short pubescence and dense, coarse punctures; ventrites 2-4 pubescent throughout, punctures small, dense medially, becoming denser toward lateral margin; 5th ventrite depressed medially in apical 1/2, patch of long pubescence on each side of median depression, without tubercle on each side of middle, apical margin broadly emarginate, surface weakly punctate; 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 coarsely, densely punctured, pubescent, apex weakly rounded. Genitalia with basal lobe as long as paramere, asymmetrical, abruptly narrowed at apical 2/3, apex weakly rounded; paramere Psc, dorsal surface narrowly arcuate, apex rounded ( Fig. 63, 64 ); sipho robust, strongly curved in basal 2/3, basal capsule large, inner arm long, slender, apex truncate, outer arm wider and slightly longer than inner arm, with accessory piece, basal border deeply, broadly emarginate ( Fig. 65, 66 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; ( Brazil) Brasilien, Nova Teutonia , 27 o 11' B, 52 o 23' L, 28.11.1937, Fritz Plaumann ( DZUP).

Remarks. This unique holotype is recognized by the black elytron with 3 small, yellow spots. However, the genitalia are strikingly similar to those of D. poortmanni . The genitalia of D. diana differ from those of D. poortmani primarily by the narrow paramere which is slender in comparison with the latter species.

Of course the dorsal color patterns differ greatly, and D. diana is noticeably more slender and elongate than D. poortmanni .

Figures

Figures 50-66. 50-55) Dilatitibialis mulsanti. 50) Habitus. 51) Phallobase ventral (apical setae missing from one paramere). 52) Phallobase lateral. 53) Enlarged siphonal apex. 54) Sipho. 55) Female genitalia. 56-61) Dilatitibialis poortmanni. 56) Habitus. 57) Phallobase ventral. 58) Phallobase lateral. 59 Enlarged siphonal apex. 60) Sipho. 61) Female genitalia. 62-66) Dilatitibialis diana. 62) Habitus. 63) Phallobase ventral. 64) Phallobase lateral. 65) Sipho. 66) Enlarged siphonal apex.