Serratitibia joyce 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 : 54-55

30. Serratitibia joyce Gordon and Canepari , new species

Description. Male holotype. Length 3.0 mm, width 2.5 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with short, narrow, black basomedial macula extended 1/5 distance to anterior pronotal margin, apex of macula broadly, deeply emarginate with yellow, small, indistinct pale brown, basal spot at center of macula, 2 small, triangular, pale brown spots on disc; elytron black with 5 large yellow spots occupying most of elytron, spots arranged in rows of 2 each with apical spot, mediolateral spot round, apical spot transversely rectangular with apical margin faintly, broadly emarginate ( Fig. 217 ); venter of head, prosternum reddish brown, meso–, metaventrites black; abdomen yellowish brown. Head punctures small, separated by less than diameter, each puncture as large as 1 eye facet; pronotal punctures equal in size to head punctures, separated by diameter or less; elytral punctures larger than on pronotum, separated by less than 2 times diameter; metaventral punctures larger than on elytra, separated by diameter or less medially, larger laterally. Clypeus distinctly emarginate apically, lateral angle abruptly rounded. Eye canthus about 6 eye facets long, slightly angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal angle broadly rounded, anterior angle abruptly rounded, lateral margin straight, basal margin without trace of bordering line. Epipleuron narrow, weakly grooved, deeply emarginate for reception of femoral apices. Protibial flange as wide as remainder of protibia, outer margin arcuate, with about 10 small teeth throughout, sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, convergent in apical 1/2, joined at basal 1/6 of prosternum, connected to base by short stem. Metaventrite without setal tuft. Basal abdominal ventrite with median setal tuft. Abdomen with primary pores laterally between ventrites 4–5 large, extended under apical 1/3 of ventrite 4; postcoxal line on basal abdominal ventrite angled to posterior ventrite margin, flattened along margin, apex extended forward. Abdominal ventrites 1–4 with short, sparse pubescence, punctures on basal 3 ventrites large medially, separated by less than 2 times diameter, 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 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 bearing tuft of setae. Apical tergite short, narrow, apex feebly rounded, surface densely, finely punctured. Genitalia with basal lobe 3/4 length of paramere, sides convergent, apex obliquely rounded; paramere Unm type, wide, widened apically, apex obliquely truncate ( Fig. 218 ); sipho robust, curved in basal 2/3, basal capsule with inner arm elongate, slender, apex obliquely truncate, outer arm longer than inner arm, slender, not widened apically, with accessory piece, basal border broadly, deeply emarginate ( Fig. 219, 220 ).

Female. Unknown.

Variation. Paratype with pronotal maculation reduced to very short, narrow, brown basomedial macula extended about 1/6 distance to anterior pronotal margin, without pale brown spots, elytron with humeral and mediolateral spots narrowly connected.

Type material. Holotype male; BG (British Guiana) ( Guyana), Chenapowu to Saveritik, Aug. 21.11, Nunenmacher Collection ( CAS) . Paratype; 1, Republick (sic) Surinam, April 1951, Collector F.J. Simmonds ( USNM) .

Remarks. This species resembles S. donna because of the mostly pale yellow pronotum and large size, but S. donna is a primarily Andean species, the male metaventrite and basal abdominal ventrite each have a setal tuft, and the male genitalia have a paramere with a rounded apex.

Figures

Figures 207–220. 207–210) Serratitibia pamela. 207) Habitus. 208) Phallobase ventral. 209) Enlarged siphonal apex. 210) Sipho. 211–216) Serratitibia stephanie. 211) Habitus. 212) Protibia. 213) Phallobase ventral. 214) Phallobase lateral. 215) Enlarged siphonal apex. 216) Sipho. 217–220) Serratitibia joyce. 217) Habitus. 218) Phallobase ventral. 219) Enlarged siphonal apex. 220) Sipho.