Dilatitibialis ellen 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 : 63-64

55. Dilatitibialis ellen Canepari and Gordon , new species

Description. Male holotype. Length 2.7 mm, width 2.3 mm; body round, slightly elongate, convex. Dorsal surface smooth, shiny. Color black except head yellow, pronotum yellow with large, black basomedian macula extended to anterior 4/5 of pronotum, anterolateral angle of macula broadly emarginate with yellow; elytron with 5 small yellow spots in rows of 2 plus apical spot, humeral spot triangular, discal spot irregularly oval, apical spot transversely oval ( Fig. 302 ); ventral surface with antenna, mouthparts, prothoracic hypomeron, legs yellow; abdomen with ventrites 1-4 dark brown medially and brownish yellow in lateral 1/4, ventrites 5-6 brownish yellow. Head punctures small, separated by a diameter or less, each puncture 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 slightly larger than on elytron medially, separated by about 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 5 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 with wide flange, flange slightly wider than remainder of protibia. Carinae on prosternal process widely separated at apex, convergent to basal 1/6 with single carina extended to pronotal base. Metaventrite without setal tuft. Basal abdominal ventrite with median setal tuft. Abdomen with primary pores laterally between ventrites 4-5 large, extended under apical 2/3 of 4th ventrite; postcoxal line on basal abdominal ventrite weakly flattened along posterior ventrite margin, extended forward, ventrite with short pubescence and large, dense punctures; ventrites 2-4 pubescent throughout, punctures dense, large; 5th ventrite, densely, coarsely punctured, depressed medially, deeply depressed by primary pore laterally, without tubercle on each side of middle, apical margin broadly, deeply emarginate; 6th ventrite short, narrow, depressed medially, apical margin deeply emarginate, densely pubescent on each side of median depression, lateral angle abruptly rounded, surface densely punctured. Apical tergite with apex deeply, broadly emarginate, lateral angle strongly projected. Genitalia with basal lobe slender, about 2/3 length of paramere, asymmetrical, sides constricted medially, apex feebly rounded; paramere straight, apex Pem, abruptly emarginate in dorsal 1/2 ( Fig. 303, 304 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm short, wide, sides sinuate, apex obliquely truncate, outer arm longer and slightly wider than inner arm, with accessory piece, basal border deeply, shallowly emarginate ( Fig. 305, 306 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; Peru, Satipo, XI, 1942, Paprzycki. ( USNM).

Remarks. The dorsal color pattern of D. ellen is essentially identical to several other species in the genus, but unique within this group. It differs slightly from other group members because the male paramere is not apically emarginate, rather it is abruptly narrowed in apical 1/4 having lost the upper 1/ 2 of the apical emargination. Males may be identified by examination of abdominal sterna and genitalia, but females will be nearly impossible to recognize.

Figures

Figures 302-317. 302-306). Dilatitibialis ellen. 302) Habitus. 303) Phallobase ventral. 304) Phallobase lateral. 305) Sipho. 306) Enlarged siphonal apex. 307-312) Dilatitibialis ceciliae. 307) Habitus. 308) Phallobase ventral. 309) Phallobase lateral. 310) Enlarged siphonal apex. 311) Sipho. 312) Female genitalia. 313-317) Dilatitibialis elaine. 313) Habitus. 314) Phallobase ventral. 315) Phallobase lateral. 316) Sipho. 317) Enlarged siphonal apex.