Serratitibia sarah 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 : 31-32

7. Serratitibia sarah Gordon and Canepari , new species

Description. Male holotype. Length 2.4 mm, width 1.8 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with large, mediobasal black macula extended slightly more than 1/2 distance to anterior pronotal margin, anterior border of macula indented with yellow; elytron black with 5 small, yellow spots in rows of 2 each with single apical spot, mediolateral spot round, apical spot transversely triangular ( Fig. 91 ); prosternum, meso–, metaventrites black; abdomen with basal 2 ventrites black, ventrites 3–6 reddish 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 less than diameter; elytral punctures as large as on pronotum, separated by diameter or less; metaventral punctures larger than on elytra, separated by less than diameter medially, slightly larger 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 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 weakly arcuate, with about 8 teeth, teeth small basally, larger medially, sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, convergent, joined at basal 1/8 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, separated by less than 2 times 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, with median tubercle, apical margin shallowly emarginate, angle on each side of emargination abruptly pronounced, bearing tuft of setae. Apical tergite short, narrow, apex emarginate medially, surface densely, finely punctured. Genitalia with basal lobe 3/4 length of paramere, sides weakly convergent, apex obliquely rounded; paramere Unm type, very wide, dorsal margin straight, ventral margin curved, apex rounded ( Fig. 92, 93 ); sipho robust, curved in basal 1/2, basal capsule with inner arm short, wide, apex slightly rounded, outer arm 3 times length of inner arm, narrowed from base to apex, with very large accessory piece, basal border feebly emarginate ( Fig. 94, 95 ).

Female. Similar to male except pronotum with mediobasal macula extended to anterior pronotal margin, apex not indented with yellow medially; elytron without humeral spot. Genitalia with spermathecal capsule long, slender, curved medially, cornu slightly widened; bursal cap with 3 arms, broadly triangular, apical strut short, slender ( Fig. 96 ).

Variation. Length 2.4–2.6 mm, width 1.8–2.1 mm. Abdominal color varies from that described above to entirely yellow.

Type material. Holotype male; Peru, Amazonas , Tabatinga, 26-VIII al 06-IX-2000, Leg. R. Westerduijn, Under story mature altered forest ( DZUP) . Paratypes; 5, same data as holotype ( DZUP) ( GGC) ( JEBC) ( MDC) .

Remarks. This species has the common elytral pattern of pale spots on a dark background, but male genitalia are characteristic and the 6th abdominal ventrite has a median tubercle.

Figures

Figures 91–107. 91–96) Serratitibia sarah. 91) Habitus. 92) Phallobase ventral. 93) Phallobase lateral. 94) Enlarged siphonal apex. 95) Sipho. 96) Female genitalia. 97–101) Serratitibia melissa. 97) habitus. 98) Phallobase ventral). 99) Phallobase lateral. 100) Enlarged siphonal apex. 101) Sipho. 102–107) Serratitibia kimberly. 102) Habitus. 103) Phallobase ventral. 104) Phallobase lateral. 105) Enlarged Siphonal apex. 106) Sipho. 107) Female genitalia.