Serratitibia pamela 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 : 53-54

28. Serratitibia pamela Gordon and Canepari , new species

Description. Male. Length 2.0 mm, width 1.4 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with wide, dark brown basomedial macula extended slightly more than 1/2 distance to anterior pronotal margin, apex of macula deeply emarginate with yellow; elytron dark brown with 5 yellow spots arranged in rows of 2 each plus apical spot, mediolateral spot with inner margin truncate, apical spot transversely rectangular and apical margin broadly emarginate ( Fig. 207 ); venter of head, prosternum reddish yellow, meso–, metaventrites reddish brown; abdomen brownish yellow. 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 less than 2 times diameter; elytral punctures as large as on pronotum, separated by less than 3 times diameter; metaventral punctures larger than on elytra, separated by diameter or less medially, larger laterally. Clypeus weakly emarginate apically, lateral angle abruptly rounded. Eye canthus about 4 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 rounded, basal margin without trace of bordering line. Epipleuron narrow, deeply grooved, deeply emarginate for reception of femoral apices. Protibial flange as wide as remainder of protibia, outer margin arcuate, with about 8 small teeth throughout, median tooth larger than remainder, sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, weakly convergent, 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 small, extended under apical 1/4 of ventrite 4; postcoxal line on basal abdominal ventrite angled to posterior ventrite margin, rounded 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 rounded, surface densely, finely punctured. Genitalia with basal lobe 5/6 length of paramere, sides convergent, apex obliquely rounded; paramere Unm type, slender, slightly widened apically, apex obliquely truncate ( Fig. 208 ); sipho robust, curved in basal 2/3, basal capsule with inner arm short, slen- der, apex irregularly obliquely truncate, outer arm slightly longer than inner arm, wide, not widened apically, with accessory piece, basal border broadly, deeply emarginate ( Fig. 209, 210 ).

Female. Unknown.

Variation. Length 1.8–2.0 mm, width 1.3–1.4 mm.

Type material. Holotype male; Brazil, Para, Acc. No. 2366, June ( CMNH) . Paratypes; 2, same data as holotype ( CMNH) .

Other specimen. 1. Brazil, Entre Rios, Acc. No. 2966. ( CMNH).

Remarks. This very small species is similar only to the Peruvian S. quincemil in size. However, the truncate inner margin of the mediolateral elytral spots, along with size and obliquely truncate parameral apices will distinguish S. pamela from that species.

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.