Serratitibia nancy 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 : 95-96

75. Serratitibia nancy Gordon and Canepari , new species

Description. Male holotype. Length 2.4 mm, width 1.9 mm; body slightly elongate, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with black, basomedial macula wide basally, extended anteriorly 2/3 distance to pronotal apex at middle, apex deeply emarginate with yellow; elytron black with 5 yellow spots, spots arranged in transverse rows of two each plus one at apex, humeral spot large, triangular, apical spot transversely elongate, apex emarginate ( Fig. 423 ); prosternum, meso–, metaventrites dark brown; abdomen brown. Head punctures small, separated by less than diameter, each puncture as large as 1–2 eye facets; pronotal punctures as large as head punctures, separated by 1–2 times diameter, elytral punctures larger than pronotal punctures, separated by 1–3 times diameter. Clypeus weakly truncate 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 slightly curved, basal margin without bordering line. Epipleuron narrow, weakly grooved, deeply emarginate for reception of femoral apices. Protibial flange as wide as remainder of protibia, outer margin straight with about 4 small teeth in basal 1/3, sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, nearly parallel, joined before prosternal base, connected to base by short stem. Metaventrite without setal tuft. Basal abdominal ventrite without median setal tuft. Abdomen without primary pores laterally between ventrites 4–5; postcoxal line on basal abdominal ventrite straight in basal 1/3, curved along posterior ventrite margin, curved forward. Abdominal ventrites with short, sparse pubescence, punctures on basal 2 ventrites separated by about diameter medially, becoming smaller and dense laterally, ventrites 3–5 densely punctured throughout; 5th ventrite depressed medially in apical 1/4, apical margin almost truncate, lateral angle of emargination feeble, with small tubercle bearing tuft of dense setae; 6th ventrite short, narrow, weakly depressed in apical 1/2, depression glabrous, without median tubercle, apical margin widely, shallowly emarginate, angle on each side of emargination abruptly rounded, bearing small tuft of dense setae. Apical tergite short, narrow, apex weakly arcuate, surface densely, finely punctured. Genitalia with basal lobe shorter than paramere, tapered to rounded apex, sides not “pinched;” paramere Unm, widened apically, apex slightly rounded ( Fig. 424, 425 ); sipho robust, curved in basal 1/ 2, basal capsule with inner arm short, rectangular, apex truncate, outer arm slightly longer than inner arm, with small accessory piece, basal border weakly emarginate ( Fig. 426, 427 ).

Female. Similar to male except head brownish yellow with dark brown vertex, pronotum with basomedial black area indistinguishable from that of male, elytron lacking yellow humeral spot. Genitalia with spermatheca long, slender, strongly curved, feebly widened from base to apex of cornu; bursal cap with 2 arms, apical strut short, apically wide in lateral view ( Fig. 428 ).

Variation. Length 2.3–2.4 mm, width 1.8–2.0 mm. Pronotal basomedial spot varies in size, and may approach the anterior pronotal margin in some specimens.

Type material. Holotype male; Ecuador, Sucumbios, San Rafael Falls , 1100m, 00 o 06.24’S / 07 o 35.31W, VIII-5/6-1998, Fred G. Andrews ( CSCA) . Paratypes; 15; 12, same data as holotype ; 2, Ecuador, Napo, San Rafael , trail to falls, 7-vii-1997, F.G. Andrews ; 1, same data as holotype except collector A.J. Gilbert ( CSCA) .

Other specimens. 2. Ecuador. Past. (Pastaza), Puyo (21 Km. SW), 14 July 1976, Sweeping, Jeffrey Cohen. Colombia. Cund. (Cundinamarca), Alban, 10 Sept 1965, J.A. Ramos Collector. ( USNM).

Remarks. This species resembles S. lisa , also an Ecuadorian species (see remarks under S. lisa ). In addition, S. nancy is one of a few species with female pronotal color pattern indistinguishable from that of males.

Figures

Figures 411–428. 411–416) Serratitibia margaret. 411) Habitus. 412) Phallobase ventral. 413) Phallobase lateral. 414) Enlarged siphonal apex. 415) Sipho. 416) Female genitalia. 417–422) Serratitibia lisa. 417) Habitus. 418) Phallobase ventral. 419) Phallobase lateral. 420) Enlarged siphonal apex. 421) Sipho. 422) Female genitalia. 423– 428) Serratitibia nancy. 423) Habitus. 424) Phallobase ventral. 425) Phallobase lateral. 426) Enlarged siphonal apex. 427) Sipho. 428) Female genitalia.