Dilatitibialis annie 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 : 25-26

15. Dilatitibialis annie Canepari and Gordon , new species

Description. Male holotype. Length 2.8 mm, width 2.4 mm; body rounded, slightly elongate, convex. Dorsal surface mostly shiny, lacking alutaceous sculpture except head slightly alutaceous, shiny. Color yellow except pronotum with narrow basomedian macula angulate on each end, 1 small, pale brown spot medially on each side of middle; elytron with suture narrowly dark brown, brown area slightly widened on disc and on apical declivity, 2 irregular, angulate, transverse, dark brown vittae present, 1 unevenly extended from suture laterally across callus to lateral margin of elytron, 1 irregularly extended from suture laterally across apical declivity to lateral margin of elytron ( Fig. 80 ); ventral surface with head, prosternum, meso- and metaventrites black; abdomen black medially, dark brown in lateral 1/4 except apex of ventrite 5 and entire ventrite 6 yellowish brown. Head punctures small, separated by a diameter or less, slightly larger than an eye facet; pronotal punctures slightly larger than head punctures, separated by less than to twice a diameter; elytral punctures slightly larger than on pronotum, separated by 2-4 times a diameter; metaventral punctures larger than on abdomen medially, separated by less than to about a diameter, coarser and separated by less than a diameter toward lateral margin. Clypeus distinctly 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 slightly rounded, basal margin without trace of bordering line. Epipleuron narrow, grooved, slightly descending externally, deeply emarginate for reception of femoral apices. Protibia narrowly flanged, flange not as wide as remainder of protibia, outer margin irregular, smooth, sponda slightly extended beyond protibial flange ( Fig. 81 ). Carinae on prosternal process widely separated at apex, convergent toward base, joined at basal 1/3 with single carina extended to basal margin of prosternum. Metaventrite with sparse setal tuft. Basal abdominal ventrite without setal tuft. Abdomen with primary pores laterally between ventrites 4-5 large, extended under apical 1/3 of 4th ventrite; postcoxal line on basal abdominal ventrite slightly flattened along posterior margin of ventrite, extended forward, 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, sides nearly parallel, slightly narrowed in apical 1/6, apex weakly notched on one side; paramere Psc, dorsal surface strongly raised, apex with ventral margin slightly projecting apically ( Fig. 82, 83 ); sipho robust, curved in basal 1/2, inner arm slender, uneven, apex obliquely truncate, outer arm wider and slightly longer than inner arm, base weakly emarginate ( Fig. 84, 85 ).

Female. Unknown.

Variation. Length 2.8 to 3.2 mm, width 2.4 to 2.6 mm. Both transverse elytral vittae are subject to brief disconnection, either medially or near suture.

Type material. Holotype male; Venezuela, Carabobo, Montalban , 180m., 25.III.1968, J. and B. Bechyne leg. ( MIZA) . Paratypes; 2, same data as holotype ( MIZA) .

Other specimen. 1. Venezuela, Aragua, Rancho Grande, Feb. 18-19, 1971, H. and A. Howden. ( USNM).

Remarks. These specimens have a seemingly very different color pattern from that of D. carolinae , but male genitalia differ very little between the two. The basal lobe of D. annie has a small apical notch on one side and paramere more slender, more strongly curved, which are the discernable difference between genitalia of these species. In spite of striking dorsal color pattern differences, it is conceivable that both represent the same species.

The specimen listed under “Other specimen” has a male phallobase nearly identical to that of the holotype, but differs by having a dark pronotal pattern consisting of a narrow basomedian spot extended anteriorly at middle to apical 3/4 of pronotum, dark areas on elytron broader, more pronounced, and a sipho with the basal capsule heavily sclerotized and outer arm long, slender, and sinuate.

Figures

Figures 67-85. 67-73) Dilatitibialis suzannae. 67) Habitus. 68) protibia. 69) Phallobase ventral. 70) Phallobase lateral. 71) Enlarged siphonal apex. 72) Sipho. 73) Female genitalia. 74-79) Dilatitibialis carolinae. 74) Habitus. 75) Phallobase ventral. 76) Phallobase lateral. 77) Enlarged siphonal apex. 78) Sipho. 79) Female genitalia. 80-85) Dilatitibialis annie. 80) Habitus. 81) protibia. 82) Phallobase ventral. 83) Phallobase lateral. 84) Enlarged siphonal apex. 85) Sipho.