Dilatitibialis oseryi (Mulsant) Canepari, Claudio, Gordon, Robert D. & Hanley, Guy A., 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 : 45-46

36. Dilatitibialis oseryi (Mulsant) , new combination

Cleothera oseryi Mulsant, 1850: 559 .

Hyperaspis oseryi: Crotch 1874: 224 ; Korchefsky 1931: 193; Blackwelder 1945: 448; Gordon 1987: 28.

Description. Male. Length 2.7 mm, width 2.2 mm; body rounded, slightly elongate, convex. Dorsal surface smooth, shiny except pronotum feebly alutaceous, shiny. Color yellow except pronotum with black mediobasal macula as wide as basal pronotal margin, extended to anterior 3/4 of pronotum, apex of macula emarginate medially and on each side of middle with yellow; elytron reddish yellow except humeral angle with small, yellow spot, suture bordered with black vitta, vitta widened on disc and connected apically with black, transversely oval apical spot, 1 short, black vitta extended from base posteriorly across humeral callus ( Fig. 194 ); ventral surface with head, prosternum, meso- and metaventrite dark brown; abdomen brown medially, lateral 1/4 and ventrites 5-6 yellowish brown. Head punctures large, separated by a diameter or less, each puncture about as large as 2 eye facets; pronotal punctures smaller than head punctures, separated by less than to 3 times a diameter; elytral punctures slightly larger than on pronotum, separated by 1 to 3 times a diameter; metaventral punctures larger than on elytron, separated by less than to 3 times a diameter medially, coarser, separated by less than a diameter 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 weakly rounded, nearly truncate, basal margin without trace of bordering line. Epipleuron narrow, grooved, slightly descending externally, deeply emarginate for reception of femoral apices. Protibia narrowly flanged, flange narrower than remainder of protibia, outer margin curved, smooth, sponda weakly extended beyond protibial flange. Carinae on prosternal process widely separated at apex, convergent toward base, joined at basal 1/5 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 1/3 of 4th ventrite; postcoxal line on basal abdominal ventrite slightly flattened along posterior ventrite margin, extended forward, ventrite with sparse, short pubescence and large, dense punctures; ventrites 2-4 pubescent throughout, punctures large medially, becoming denser toward lateral margin; 5th ventrite coarsely, densely punctured in basal 2/3, apical 1/3 depressed, feebly depressed by primary pore laterally, without tubercle on each side of middle, apical margin broadly, strongly emarginate; 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 finely, densely punctured, pubescent, apex weakly convex, nearly truncate. Genitalia with basal lobe short, wide, 2/3 as long as paramere, asymmetrical, sides convergent from base to apex, apex rounded; paramere wide, curved, Psc, apex with small, ventral projection ( Fig. 195, 196 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm short, slender, narrowed medially, apex obliquely truncate, outer arm wider and longer than inner arm, with accessory piece, basal border broadly emarginate ( Fig. 197, 198 ).

Female. Similar to male except head black, black pronotal macula extended to apical margin of pronotum. Genitalia with spermathecal capsule short, wide, narrowed from base to apex, cornu slightly widened; bursal cap with 3 arms, apical strut long, slender, slightly widened at apex ( Fig. 199 ).

Variation. Length 2.2 to 2.7 mm, width 1.6 to 2.2 mm. Elytron with black maculae somewhat variable in size, humeral spot sometimes not extended to base of elytron.

Type locality. Brazil.

Type depository. UMZC (lectotype designated by Gordon 1987).

Geographical distribution. Brazil.

Specimens examined. 9. Brazil. Minas Gerais, Serra Caraca ; Minas Gerais, Vila Monteverde. ( MZSP) ( USNM) .

Remarks. This is another species with a distinctive dorsal color pattern by which it may be recognized.

Figures

Figures 184-199. 184-189) Dilatitibialis rosa. 184) Habitus. 185) Phallobase ventral. 186) Phallobase lateral. 187) Enlarged siphonal apex. 188) Sipho. 189) Female genitalia. 190-193) Dilatitibialis grace. 190) Habitus. 191) Phallobase ventral. 192) Sipho. 193) Enlarged siphonal apex. 194-199) Dilatitibialis oseryi. 194) Habitus. 195) Phallobase ventral. 196) Phallobase lateral. 197) Enlarged siphonal apex. 198) Sipho. 199) Female genitalia.