Dilatitibialis fuscomaculata (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 : 56-57

48. Dilatitibialis fuscomaculata (Mulsant) , new combination

Cleothera fuscomaculata Mulsant, 1850: 569 .

Hyperaspis fuscomaculata: Crotch 1874: 218 ; Korschefsky 1931: 189; Blackwelder 1945: 44.

Description. Male. Length 3.1 mm, width 2.6 mm; body rounded, slightly elongate, convex. Dorsal surface slightly alutaceous, shiny. Color yellow except pronotum with 7 brown spots, 2 spots medially on disc, 2 spots on basal margin on each side of middle, 1 spot at middle on basal margin, 2 spots laterally near lateral pronotal margin; elytron with 5 elongate, brown spots, 3 spots on apical 1/2, 2 spots on apical declivity ( Fig. 262 ); ventral surface with head, prosternum, meso- and metaventrite dark brown; abdomen with median 1/3 of ventrites 1-4 dark brown, lateral 1/3 and ventrites 5-6 yellowish brown. Head punctures small, separated by a diameter or less, each puncture about as large as an eye facet; pronotal punctures smaller than head punctures, separated by a diameter or less; elytral punctures larger than those on pronotum, separated by 1 to 3 times a diameter; metaventral punctures larger than those on elytron, separated by a diameter or less medially, coarser, separated by less than a diameter toward lateral margin. Clypeus 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, basal margin without trace of bordering line. Epipleuron narrow, grooved, slightly descending externally, deeply emarginate for reception of femoral apices. Protibia widely flanged, flange slightly wider 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 1/3 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 2/3 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 long, slender, as long as paramere, asymmetrical, sides convergent from base to apex, apex truncate; paramere wide, curved, Psc, apex with small, ventral projection ( Fig. 263, 264 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm short, slender, curved, apex obliquely rounded, outer arm wider and longer than inner arm, with accessory piece, basal border broadly, deeply emarginate ( Fig. 265, 266 ).

Female. Similar to male except head with clypeus and short, narrow macula on frons at base of eye brown. Genitalia with spermathecal capsule short, narrowed from wide base to narrow apex; bursal cap oval, wide, with 2 lateral arms, apical strut long, slender in basal 1/2, apical 1/2 wide, flattened laterally ( Fig. 267 ).

Variation. Length 2.6 to 3.1 mm, width 2.1 to 2.6 mm.

Type locality. Brazil.

Type depository. MNHL (lectotype here designated).

Geographical distribution. Brazil.

Specimens examined. 41. Brazil. Frequently found in southeastern Brazil. ( BMNH) ( CMNH) ( DEI) ( DZUP) ( MNHL) ( USNM) ( ZMHB).

Remarks. Apparently a rather common species in southeastern Brazil, D. fuscomaculata is found in many collections. It has a dorsal color pattern unique within Dilatitibialis by which it may be recognized.

Mulsant (1850) specified that the type was in the Dejean collection (MNHL), therefore the single type specimen in that collection labeled “Brasilia, Bahia, Van Winthiem.” is designated the lectotype. One female type in the ZMHB labeled “55687/ fuscomaculata Muls. Bras. (handwritten)/Hist. Coll. ( Coleoptera ), Nr. 55687, Psyllobora fuscomaculata Muls. , Brasil, Zool. Mus. Berlin (dark green paper)” is designated a paralectotype, and a male type in the DEI labeled “ Brasil Schaum (handwritten)/Coll. Haag/ Paratypus (red paper)/ fuscomaculata Mls. Typ. ” is designated another paralectotype.

Figures

Figures 251-267. 251-256) Dilatitibialis luteola. 251) Habitus. 252) Phallobase ventral. 253) Phallobase lateral. 254) Enlarged siphonal apex. 255) Sipho. 256) Female genitalia (lacking spermathecal capsule).257-261) Dilatitibialis florifera. 257) Habitus. 258) Phallobase ventral. 259) Phallobase lateral. 260) Sipho. 261) Enlarged siphonal apex. 262-267) Dilatitibialis fuscomaculata. 262) Habitus. 263) Phallobase ventral.264) Phallobase lateral. 265) Enlarged siphonal apex. 266) Sipho. 267) Female genitalia.