Serratitibia ruth Gordon and Canepari, 2013

Gordon, Robert D., Canepari, Claudio & Hanley, Guy A., 2013, South American Coccinellidae (Coleoptera), Part XII: New name for Cyra Mulsant, review of Brachiacanthini genera, and systematic revision of Cleothera Mulsant, Hinda Mulsant and Serratitibia Gordon and Canepari, new genus, Insecta Mundi 2013 (278), pp. 1-150 : 29-30

4. Serratitibia ruth Gordon and Canepari , new species

Description. Male holotype. Length 2.4 mm, width 1.9 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with wide, long, brown basomedial macula, anterior margin of macula deeply indented with yellow medially, extended anteriorly 2/3 distance to pronotal apex; elytron black with 5 large yellow spots arranged in transverse rows of 2 each plus a transversely oval, anteriorly emarginate apical spot, mediolateral spot projected inward, discal spot irregularly rounded ( Fig. 78 ); venter of head, prosternum yellowish brown, meso–, metaventrites reddish brown; abdomen yellow. Head punctures small, separated by less than diameter, each puncture as large as 2 eye facets; pronotal punctures equal in size to head punctures, separated by less than 2 times diameter; elytral punctures larger than pronotal punctures, separated by 1–3 times diameter; metaventral punctures larger than on elytra, separated by about 2 times diameter medially, larger and separated by less than diameter laterally. Clypeus weakly emarginate apically, lateral angle abruptly rounded. Eye canthus about 6 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal angle broadly rounded, anterior angle abruptly rounded, lateral margin rounded, basal margin with faint trace of bordering line. Epipleuron narrow, weakly grooved, deeply emarginate for reception of femoral apices. Protibial flange about as wide as remainder of protibia, outer margin straight, with about 8 small, indistinct teeth, sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, nearly parallel, joined at basal 1/3 of prosternum. Metaventrite without setal tuft. Basal abdominal ventrite without median setal tuft. Abdomen with primary pores laterally between ventrites 4–5 small, indenting apical 1/6 of ventrite 4; postcoxal line on basal abdominal ventrite angled to posterior ventrite margin, flat along margin, apex extended forward. Abdominal ventrites 1–4 with short, sparse pubescence, punctures on basal 3 ventrites large, separated by about diameter medially, becoming smaller and dense laterally, ventrites 3–5 densely punctured throughout; 5th ventrite depressed medially in apical 1/2, apical border weakly emarginate medially, lateral angle of emargination pronounced with small tubercle bearing tuft of dense setae; 6th ventrite narrow, deeply depressed medially, depression glabrous, without median tubercle, apical margin shallowly emarginate, angle on each side of emargination broadly rounded. Apical tergite short, narrow, apex feebly emarginate medially, surface densely, finely punctured. Genitalia with basal lobe nearly as long as paramere, sides nearly parallel, apex rounded; paramere Unm type, widened apically, apex rounded ( Fig. 79 ); sipho robust, curved in basal 1/2 (apical 1/ 2 lost), basal capsule with inner arm elongate, apex truncate, outer arm wide, slightly longer than inner arm, with accessory piece, basal border weakly emarginate ( Fig. 80 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; Brazil, Lambary, M Geraes (Minas Gerais), 22.IX.1963, J. Halik 22951, BRASIL, Halik Collection 1966 ( USNM).

Remarks. The combination of median pronotal macula very deeply indented apically, inwardly projecting mediolateral spot on each elytron, and Brazilian type locality will help to identify S. ruth .

Figures

Figures 78–90. 78–85) Serratitibia ruth. 78) Habitus. 79) Phallobase ventral. 80) Sipho. 81–85) Serratitibia michelle. 81) Habitus. 82) Phallobase ventral. 83) Phallobase lateral. 84) Enlarged siphonal apex. 85) Sipho. 86– 90) Serratitibia laura. 86) Habitus. 87) Phallobase ventral. 88) Phallobase lateral. 89) Enlarged Siphonal apex. 90) Sipho.