Serratitibia brenda 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 : 37-38

13. Serratitibia brenda Gordon and Canepari , new species

Description. Male holotype. Length 2.7 mm, width 2.1 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with small, black basomedial macula extended slightly more than 1/2 distance to anterior pronotal margin, anterior margin of macula indented with yellow medially and at anterolateral angles; elytron black with 5 small, yellow spots in rows of 2 each with single apical spot, mediolateral spot rounded, apical spot transversely oval, ( Fig. 123 ); venter of head, prosternum light reddish brown, meso–, metaventrites dark reddish brown; 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 less than 2 times diameter; elytral punctures as large as on pronotum, separated by 1–3 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 short, about 4 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 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 4 distinct teeth in basal 1/2 ( Fig. 124 ), sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, nearly parallel, joined slightly anterior to middle. Metaventrite without setal tuft. Basal abdominal ventrite without median setal tuft. Abdomen with primary pores laterally between ventrites 4–5 large, extended under apical 1/2 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, separated by diameter or less 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 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 bearing tuft of setae. Apical tergite short, narrow, apex truncate, surface densely, finely punctured. Genitalia with basal lobe 3/4 as long as paramere, wide, sides weakly convergent, apex obliquely truncate; paramere Unm type, narrow, slightly widened apically, apex rounded ( Fig. 125, 126 ); sipho robust, curved in basal26 2/3, basal capsule with inner arm short, tapered apically, apex feebly rounded, nearly truncate, outer arm wide, slightly longer than inner arm, with accessory piece, basal border broadly, deeply emarginate ( Fig. 127, 128 ).

Female. Similar to male except head reddish brown, pronotum with basomedial macula large, extended nearly to anterior pronotal margin, with small, median, apical emargination, elytron lacking humeral spot. Genitalia with spermathecal capsule long, curved medially, cornu slightly enlarged; bursal cap widely triangular, with 3 arms, inner arm faint, apical strut short, wide, apex spatulate in lateral view ( Fig. 129 ).

Variation. Length 2.4–2.7 mm, width 1.8–2.1 mm.

Type material. Holotype male; Colombia, Amazonas , 700', Leticia, July 10, 1970, H. and A. Howden ( USNM) . Paratypes: 2, same data as holotype except 1 paratype date July 11 ( USNM).

Other specimens. 5. Colombia. Amazonas , 700', Feb. 19-25, 1972, July 9, 1970, July 11, 1972 ; 3 mi. W. Villavicencio, Meta, 920 m, III-11-1955, E.I. Schlinger and E.S. Ross collectors. ( CAS) ( USNM) .

Remarks. This species is similar to S. bisquatuorpustulata and S. arcualis , the only other Colombian species in this group, but those species have larger elytral spots and male genitalia with apex of basal lobe obliquely rounded, paramere wide apically.

Specimens from Villavicencio listed under “Other specimens ” have very similar male genitalia but the elytral spots are half as large as those of typical S. brenda .

Figures

Figures 123–136. 123–129) Serratitibia brenda. 123) Habitus. 124) Protibia. 125) Phallobase ventral. 126) Phallobase lateral. 127) Enlarged siphonal apex. 128) Sipho. 129) Female genitalia. 130–135) Serratitibia bisquatuorpustulata. 130) Habitus. 131) Phallobase ventral. 132) Phallobase lateral. 133) Enlarged siphonal apex. 134) Sipho. 135) Female genitalia. 136) Serratitibia arcualis. 136) Habitus.