Dilatitibialis paula 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 : 18-19

9. Dilatitibialis paula Canepari and Gordon , new species

Description. Male holotype. Length 3.2 mm, width 2.6 mm; body rounded, slightly elongate, convex. Dorsal surface mostly shiny, lacking alutaceous sculpture except head alutaceous, dull, pronotum slightly alutaceous, shiny. Color yellow except head with black clypeus; pronotum with narrow, dark brown basal border, small, irregularly rounded brown spot on each side of middle in apical 1/2; elytron with 5 small, irregular brown spots, 1 spot inside humeral callus, 1 triangular spot on anterior 1/2 of disc, 1 rectangular spot near lateral margin anterior to middle, 1 triangular spot near suture on apical declivity, 1 faint, very irregular pale brown spot on lateral margin of apical declivity ( Fig. 45 ); ventral surface with head, prosternum, meso- and metaventrites, trochanters black, femur of leg 1 with basal 1/3 black, leg 2 with femur mostly dark brown, leg 3 with femur entirely dark brown except apex narrowly yellow; abdomen yellowish brown. 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 less than to twice a diameter; metaventral punctures as large as on abdomen, separated by about twice a diameter medially, slightly coarser and separated by a diameter toward lateral margin. Clypeus apically emarginate, lateral angle rounded, surface with sparse, long pubescence. Eye canthus small, about 4 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal and anterior angles abrupt, lateral margin rounded, basal margin with faint trace of bordering line. Epipleuron narrow, grooved, slightly descending externally, deeply emarginate for reception of femoral apices. Protibia weakly flanged, flange about 1/2 width of remainder of protibia, outer margin rounded, smooth, sponda 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 sparse, long setal tuft. Abdomen with primary pores laterally between ventrites 4-5 small, extended under apical 1/3 of 4th ventrite; postcoxal line on basal abdominal ventrite flattened along posterior margin of ventrite, then forward, ventrite with sparse, long pubescence and sparse 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 acutely abrupt, surface feebly punctured. Apical tergite coarsely, densely punctured, pubescent, apex deeply, abruptly emarginate. Genitalia with basal lobe shorter than paramere, asymmetrical, lateral margins sinuate; paramere Unm, dorsal surface widely arcuate, giving a “humpbacked” appearance, apex rounded ( Fig. 46, 47 ); sipho robust, strongly curved in basal 2/3, basal capsule large, inner arm short, apex irregular, outer arm wider and slightly longer than inner arm, with accessory piece, basal border broadly emarginate ( Fig. 48, 49 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; Venezuela, Aragua, Cer. Choroni, 1600m, Feb. 26, 1971, H. and A. Howden. ( USNM).

Remarks. This is a distinctive species because of the unique dorsal color pattern, black clypeus, femora at least partially dark brown or black, and dorsally “humped” paramere of the male genitalia.

Figures

Figures 33-49. 33-38) Dilatitibialis hybridula. 33) Habitus. 34) Phallobase ventral. 35) Phallobase lateral. 36) Enlarged siphonal apex. 37) Sipho. 38) Female genitalia. 39-44) Dilatitibialis glyphica. 39) Habitus. 40) Phallobase ventral. 41) Phallobase lateral. 42) Enlarged siphonal apex. 43) Sipho. 44) Female genitalia. 45-49) Dilatitibialis paula. 45) Habitus. 46) Phallobase ventral. 47) Phallobase lateral. 48) Sipho. 49) Enlarged siphonal apex.