Dilatitibialis norma 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 : 15-16

6. Dilatitibialis norma Canepari and Gordon , new species

Description. Male holotype. Length 2.8 mm, width 2.3 mm; body rounded, slightly elongate, convex. Dorsal surface mostly shiny, lacking alutaceous sculpture except head with weakly alutaceous background. Color yellow except pronotum with basal 1/2 bordered with black, black area broadly expanded anteriorly at middle, narrowed at each outer end; elytron yellow with sutural border narrowly black, black area narrow posterior to scutellum, becoming gradually wider toward apex, lateral and apical margins narrowly black, 3 small, brown spots present medially in outer 1/2, inner spot on disc, spot laterad of inner spot a short, somewhat broken vitta anterior to middle, outer spot on lateral border, small, irregularly triangular ( Fig. 27 ); ventral surface with head, prosternum, meso- and metaventrites black, posterior 2/3 of metafemur brown; abdomen mostly dark brown medially, yellowish brown in lateral 1/4, 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 less than to twice a diameter; elytral punctures slightly larger than on pronotum, separated by 1 to 2 times a diameter; metaventral punctures larger than on abdomen, separated by about a diameter medially, coarser and separated by less than a diameter toward lateral margin. Clypeus apically emarginate, lateral angle rounded, surface with sparse, long pubescence. Eye canthus about 6 eye facets long, strongly angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal and anterior angles abrupt, lateral margin straight, 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 throughout, ventrite with sparse, long pubescence and sparse punctures; ventrites 2-4 pubescent throughout, punctures small, sparse 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, surface feebly punctured. Apical tergite coarsely, densely punctured, pubescent, apex feebly emarginate. Genitalia with basal lobe shorter than paramere, slightly asymmetrical, narrowed from base to rounded apex; paramere Unm, straight, narrowed toward rounded apex ( Fig. 28, 29 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm narrow, apically truncate, outer arm wider and slightly longer than inner arm, with accessory piece, basal border broadly emarginate ( Fig. 30, 31 ).

Female. Similar to male except head dark brown with yellowish red spot on frons and another on vertex, pronotum with median black area extended to anterior margin. Genitalia with spermathecal capsule short, wide, cornu not widened; bursal cap oval, with 2 outer arms, apical strut long, slender, weakly spatulate at apex in lateral view ( Fig. 32 ).

Variation. Length 2.8 to 3.4 mm, width 2.3 to 2.6 mm. Size and shape of elytral spots varies, slightly, lateral spot on border subject to size reduction and perhaps disappearance.

Type material. Holotype male; Colombia, Las Tibayas , unt. Bogotá. ( ZMHB) . Paratypes; 2, Colombia, Las Tibayas, unt. Bogotá, O. Thieme ( ZMHB) .

Remarks. The dorsal color pattern of D. norma is unique to this species, not similar to any other known species in the genus.

Figures

Figures 17-32. 17-21) Dilatitibialis phyllis. 17) Habitus. 18) Phallobase ventral. 19) Phallobase lateral. 20) Sipho. 21) Enlarged siphonal apex. 22-26) Dilatitibialis cindy. 22) Habitus. 23) Phallobase ventral. 24) Phallobase lateral. 25) Sipho. 26) Enlarged siphonal apex. 27-32) Dilatitibialis norma. 27) Habitus. 28) Phallobase ventral. 29) Phallobase lateral. 30) Enlarged siphonal apex. 31) Sipho. 32) Female genitalia.