Dilatitibialis luteola (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 : 54-55

46. Dilatitibialis luteola (Mulsant) , new combination

Cleothera luteola Mulsant, 1850: 563 .

Hyperaspis luteola: Crotch 1874: 216 ; Korschefsky 1931: 192; Blackwelder 1945: 447; Gordon 1987: 27.

Description. Male. Length 3.0 mm, width 2.4 mm; body rounded, slightly elongate, convex. Dorsal surface smooth, shiny. Color yellow except pronotum with faint, darker yellow, M-shaped basomedian macula; elytron darker yellow except humeral angle with small, triangular, yellow spot ( Fig. 251 ); ventral surface with meso- and metaventrite pale brownish yellow. Head punctures small, separated by a diameter or less, each puncture about as large as an eye facet; pronotal punctures larger than head punctures, separated by a diameter or less; elytral punctures as large as those on pronotum, separated by 1 to 3 times a diameter; metaventral punctures larger than those on elytron, separated by about a diameter medially, coarser, separated by a diameter or less 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 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 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 with small setal tuft. Basal abdominal ventrite with small setal tuft. Abdomen with primary pores laterally between ventrites 4-5 small, extended under apical 1/4 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. Genitalia with basal lobe long, slender, nearly as long as paramere, asymmetrical, sides parallel from base to apex, apex rounded; paramere wide, curved, Psc, apex with small, ventral projection ( Fig. 252, 253 ); sipho robust, strongly curved in basal 1/2, basal capsule large, inner arm long, slender, apex rounded, outer arm wider and slightly longer than inner arm, with accessory piece, basal border broadly emarginate ( Fig. 254, 255 ).

Female. Similar to male except genitalia with spermathecal capsule short, wide, widened from base to apex; bursal cap without sclerotized arms, apical strut short, slender ( Fig. 256 ).

Variation. Length 2.0 to 3.0 mm, width 1.7 to 2.4 mm.

Type locality. Colombia.

Type depository. DEI (lectotype here designated).

Geographical distribution. Costa Rica, Panama, Brazil, Colombia, Ecuador, Peru, Venezuela.

Specimens examined. 43. Costa Rica. Turrialba . Panama. Canal Zone , Summit, Gamboa ; El Cermeno; Limon Plantation, Chagres River . Brazil. Tapuruquara, Rio Negro . Colombia. Bonda ; Cacagualito, Rio Frio . Ecuador. Sucumbios, 9 km SE Lumbaqui. Peru. Madre de Dios, Rio Tambopata Reserve , SW Maldonado . Venezuela. Aragua, El Limon ; Aragua, P. Nac. Henri Pittier ; Zulia, El Tucuco. ( BMNH) ( CAS) ( CSCA) ( CMNH) ( DZUP) ( USNM) ( ZMHB) .

Remarks. This species resembles only D. dilatata in external coloration. Both are entirely yellow or reddish yellow dorsally, but D. luteola is much smaller and male genitalia are diagnostic for both species, see remarks under D. dilatata .

A female type specimen in the DEI labeled “Coll. Haag/Columb. Schaum (handwritten)/ Syntypus (pink paper)/ luteola Mls Typ (handwritten)/coll. DEI Müncheberg” is designated the lectotype. One other specimen labeled as from Brasil bears a “ Syntypus ” label, but this cannot be correct because Mulsant (1850) stated that all of his material was from Colombia. The lectotype should be in the ZMHB, but no type specimens are there, so we designate the lectotype as a DEI specimen that was obviously part of the Germar and Schaum collection.

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.